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Note the following details of the code protection feature on Microchip devices:• Microchip products meet the specification contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions.
• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of ourproducts. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such actsallow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding deviceapplications and the like is provided only for your convenienceand may be superseded by updates. It is your responsibility toensure that your application meets with your specifications.MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS ORIMPLIED, WRITTEN OR ORAL, STATUTORY OROTHERWISE, RELATED TO THE INFORMATION,INCLUDING BUT NOT LIMITED TO ITS CONDITION,QUALITY, PERFORMANCE, MERCHANTABILITY ORFITNESS FOR PURPOSE. Microchip disclaims all liabilityarising from this information and its use. Use of Microchipdevices in life support and/or safety applications is entirely atthe buyer’s risk, and the buyer agrees to defend, indemnify andhold harmless Microchip from any and all damages, claims,suits, or expenses resulting from such use. No licenses areconveyed, implicitly or otherwise, under any Microchipintellectual property rights.
DS51931A-page 2
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their respective companies.
© 2011, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-61341-075-2Microchip received ISO/TS-16949:2002 certification for its worldwide
© 2011 Microchip Technology Inc.
headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.
PIC18F87J72 SINGLE-PHASE ENERGY
METER REFERENCE DESIGNTable of Contents
Preface ........................................................................................................................... 7Introduction............................................................................................................ 7Document Layout .................................................................................................. 8Conventions Used in this Guide ............................................................................ 9Recommended Reading...................................................................................... 10The Microchip Web Site ...................................................................................... 10Customer Support ............................................................................................... 10Document Revision History ................................................................................. 10
Chapter 1. Product Overview1.1 Introduction ................................................................................................... 111.2 What the PIC18F87J72 Single-Phase Energy Meter Reference Design Kit
Includes .................................................................................................. 121.3 Getting Started ............................................................................................. 12
Chapter 2. Hardware2.1 Overview ...................................................................................................... 132.2 Input and Analog Front End ......................................................................... 162.3 Power Supply Circuit .................................................................................... 17
Chapter 3. Calculation Engine and Register Description3.1 Calculation Engine Signal Flow Summary ................................................... 193.2 Complete Register List ................................................................................. 203.3 MODE ........................................................................................................... 213.4 STATUS ....................................................................................................... 223.5 CAL_CONTROL ........................................................................................... 233.6 LINE_CYC ................................................................................................... 243.7 LINE_CYC_CNT ......................................................................................... 243.8 RAW2_I_RMS .............................................................................................. 243.9 RAW_I_RMS ................................................................................................ 243.10 I_RMS ........................................................................................................ 253.11 RAW2_V_RMS ......................................................................................... 253.12 RAW_V_RMS ........................................................................................... 253.13 V_RMS ....................................................................................................... 253.14 LINE_FREQUENCY ................................................................................... 253.15 RAW_POWER_ACT ................................................................................. 263.16 POWER_ACT ............................................................................................. 263.17 POWER_APP ............................................................................................ 263.18 RAW_POWER_REACT ............................................................................. 26
© 2011 Microchip Technology Inc. DS51931A-page 3
PIC18F87J72 Single-Phase Energy Meter Reference Design
3.19 POWER_REACT ........................................................................................ 273.20 PERIOD ...................................................................................................... 273.21 ENERGY_ACT ........................................................................................... 273.22 ENERGY_APP .......................................................................................... 273.23 I_ABS_MAX ............................................................................................... 283.24 V_ABS_MAX .............................................................................................. 283.25 ENERGY_REACT ...................................................................................... 283.26 PHASE_COMPENSATION ........................................................................ 283.27 OFFSET_I_RMS ....................................................................................... 283.28 OFFSET_V_RMS ...................................................................................... 293.29 GAIN_I_RMS ............................................................................................. 293.30 GAIN_V_RMS ............................................................................................ 293.31 OFFSET_POWER_ACT .......................................................................... 293.32 GAIN_POWER_ACT .................................................................................. 293.33 OFFSET_POWER_REACT ...................................................................... 303.34 GAIN_POWER_REACT ............................................................................. 303.35 GAIN_ENERGY_ACT ................................................................................ 303.36 GAIN_ENERGY_APP ................................................................................ 303.37 GAIN_ENERGY_REACT ........................................................................... 303.38 CF_PULSE_WIDTH ................................................................................... 313.39 GAIN_DENR_ENERGY_ACT .................................................................... 313.40 GAIN_NUMR_ENERGY_ACT ................................................................... 313.41 METER_CONFIG ..................................................................................... 313.42 CAL_STATUS ............................................................................................ 323.43 MAXIMUM CURRENT ............................................................................. 323.44 CALIBRATION_VOLTAGE ...................................................................... 323.45 CALIBRATION_CURRENT ...................................................................... 323.46 CALIBRATION_FREQUENCY .................................................................. 333.47 METER_CONSTANT ................................................................................ 333.48 CALIBRATION_LINE_CYCLE .................................................................. 333.49 GAIN_DENR_ENERGY_REACT .............................................................. 333.50 GAIN_NUMR_ENERGY_REACT ............................................................. 333.51 PHASE_COMPENSATION_90 ................................................................. 333.52 CREEP_THRSHOLD_MINUTE ................................................................. 343.53 CREEP_THRSHOLD_SECOND ................................................................ 343.54 ENERGY_ACT_FORWARD ...................................................................... 343.55 ENERGY_ACT_REVERSE ........................................................................ 343.56 ENERGY_REACT_INDUCTIVE ................................................................. 343.57 ENERGY_REACT_CAPACITIVE ............................................................... 35
DS51931A-page 4 © 2011 Microchip Technology Inc.
Appendix A. Schematic and LayoutsA.1 Introduction .................................................................................................. 37A.2 Schematics and PCB Layout ....................................................................... 37A.3 Board – Schematic ....................................................................................... 38A.4 Board – Schematic Top Silk and Boarder Outline ...................................... 39A.5 Board – Top Silk .......................................................................................... 40A.6 Board – Top Trace and Pads ...................................................................... 41A.7 Board – Bottom Silk ..................................................................................... 42A.8 Board – Bottom Trace and Pads .................................................................. 43
Appendix B. Bill of Materials (BOM)Worldwide Sales and Service .................................................................................... 50
© 2011 Microchip Technology Inc. DS51931A-page 5
PIC18F87J72 Single-Phase Energy Meter Reference Design
NOTES:
DS51931A-page 6 © 2011 Microchip Technology Inc.
PIC18F87J72 SINGLE-PHASE ENERGYMETER REFERENCE DESIGN
Preface
INTRODUCTIONThis chapter contains general information that will be useful to know before using the PIC18F87J72 Single-Phase Energy Meter Reference Design. Items discussed in this chapter include:• Document Layout• Conventions Used in this Guide• Recommended Reading• The Microchip Web Site• Customer Support• Document Revision History
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document.
For the most up-to-date information on development tools, see the MPLAB® IDE on-line help. Select the Help menu, and then Topics to open a list of available online help files.
© 2011 Microchip Technology Inc. DS51931A-page 7
PIC18F87J72 Single-Phase Energy Meter Reference Design
DOCUMENT LAYOUTThis document describes how to use the PIC18F87J72 Single-Phase Energy Meter Reference Design as a development tool to emulate and debug firmware on a target board. The manual layout is as follows:• Chapter 1. “Product Overview” – Important information on using the
PIC18F87J72 Single-Phase Energy Meter Reference Design including a getting started section that describes wiring the line and load connections.
• Chapter 2. “Hardware” – Includes detail on the function blocks of the meter including the analog front end design, and power supply design.
• Chapter 3. “Calculation Engine and Register Description” – This section describes the digital signal flow for all power output quantities such as RMS current, RMS voltage, active power, and apparent power. This section also includes the calibration registers detail.
• Appendix A. “Schematic and Layouts” – Shows the schematic and layout diagrams
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the PIC18F87J72 Single-Phase Energy Meter Reference Design.
DS51931A-page 8 © 2011 Microchip Technology Inc.
Preface
CONVENTIONS USED IN THIS GUIDEThis manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONSDescription Represents Examples
Arial font:Italic characters Referenced books MPLAB® IDE User’s Guide
Emphasized text ...is the only compiler...Initial caps A window the Output window
A dialog the Settings dialogA menu selection select Enable Programmer
Quotes A field name in a window or dialog
“Save project before build”
Underlined, italic text with right angle bracket
A menu path File>Save
Bold characters A dialog button Click OKA tab Click the Power tab
N‘Rnnnn A number in verilog format, where N is the total number of digits, R is the radix and n is a digit.
4‘b0010, 2‘hF1
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>Courier New font:Plain Courier New Sample source code #define START
Filenames autoexec.bat
File paths c:\mcc18\hKeywords _asm, _endasm, staticCommand-line options -Opa+, -Opa-
Bit values 0, 1Constants 0xFF, ‘A’
Italic Courier New A variable argument file.o, where file can be any valid filename
Square brackets [ ] Optional arguments mcc18 [options] file [options]
Curly brackets and pipe character: { | }
Choice of mutually exclusive arguments; an OR selection
errorlevel {0|1}
Ellipses... Replaces repeated text var_name [, var_name...]
Represents code supplied by user
void main (void){ ...}
© 2011 Microchip Technology Inc. DS51931A-page 9
PIC18F87J72 Single-Phase Energy Meter Reference Design
RECOMMENDED READINGThis user’s guide describes how to use the PIC18F87J72 Single-Phase Energy Meter Reference Design. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources.PIC18F87J72 Family Data Sheet – “80-Pin, High-Performance Microcontrollers with Dual Channel AFE, LCD Driver and nanoWatt Technology“ (DS39979)This data sheet provides detailed information regarding the PIC18F87J72 device.“Single-Phase Energy Meter Calibration User’s Guide” (DS51964)
THE MICROCHIP WEB SITEMicrochip provides online support via our web site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information:• Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents, latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technical support requests, online discussion groups, Microchip consultant program member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives
CUSTOMER SUPPORTUsers of Microchip products can receive assistance through several channels:• Distributor or Representative• Local Sales Office• Field Application Engineer (FAE)• Technical SupportCustomers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document.Technical support is available through the web site at: http://support.microchip.com
DOCUMENT REVISION HISTORY
Revision A (March 2011)• Initial Release of this Document.
DS51931A-page 10 © 2011 Microchip Technology Inc.
PIC18F87J72 SINGLE-PHASE ENERGYMETER REFERENCE DESIGN
Chapter 1. Product Overview
1.1 INTRODUCTIONThe PIC18F87J72 Single-Phase Energy Meter Reference Design is a fully functional single-phase meter based on the highly integrated PIC18F87J72 single-chip energy meter IC. This low-cost design does not use any transformers and requires few exter-nal components. The PIC18F87J72 directly drives the LCD, and includes both an iso-lated USB connection and a non-isolated RS-232 interface for meter calibration and access to the device power calculations. The system calculates active energy, active power, reactive energy, reactive power, RMS current, RMS voltage and other typical power quantities.The Microchip Energy Meter 1-Phase Software is used to calibrate and monitor the system, and can be used to create custom calibration setups. For some accuracy requirements, only a single-point calibration may be needed. The energy meter software offers an automated step by step calibration process that can be used to quickly calibrate energy meters.
FIGURE 1-1: PIC18F87J72 Single-Phase Energy Meter.
© 2011 Microchip Technology Inc. DS51931A-page 11
PIC18F87J72 Single-Phase Energy Meter Reference Design
1.2 WHAT THE PIC18F87J72 SINGLE-PHASE ENERGY METER REFERENCE DESIGN KIT INCLUDES
The PIC18F87J72 Single-Phase Energy Meter Reference Design kit includes:• PIC18F87J72 Single-Phase Energy Meter Reference Design (102-00280)• Important Information Sheet
1.3 GETTING STARTEDTo describe how to use the PIC18F87J72 Single-Phase Energy Meter Reference Design, the following example is given using a two-wire 1-phase, 220VAC line voltage and connections using an energy meter calibrator equipment, or other programmable load source. The meter design uses a 5A load for calibration current, and a maximum current (IMAX) of 60A.All connections described in this section are dependent upon the choice of the current sensing element. A secondary external transformer may be required in higher current meter designs. To test a calibrated meter, the following connections apply for a two-wire connection.
1.3.1 Step 1: Wiring ConnectionsFigure 1-2 is identifying the line and load connections of the PIC18F87J72 Sin-gle-Phase Energy Meter Reference Design.
FIGURE 1-2: Example Connections using a Two-Wire System.
1.3.2 Step 2: Turn On Line/Load Power to the Meter (Power the Meter)The meter will turn on when the line connection has 220V connected. The LCD display will show the total energy accumulated.
Line
Neutral
MAIN LOAD
Line
Neutral
1 2 3 4
DS51931A-page 12 © 2011 Microchip Technology Inc.
PIC18F87J72 SINGLE-PHASE ENERGYMETER REFERENCE DESIGN
Chapter 2. Hardware
2.1 OVERVIEWFigures 2-1 and 2-2 show the PIC18F87J72 Single-Phase Energy Meter Reference Design:
DANGERHIGH VOLTAGE
PIC18F87J72 SHUNT METER
J2
U1 D1
D9D8
J1
D3D2J3
LCD1
P1J4
SW2
SW1
SW3
1
2
3
4
5
11 10 9
8
7
6Legend:
1 = IR for meter communication 7 = Push button switches2 = USB or RS-232 selection 8 = 9-digit LCD Display with icons for kWh and
kVARh3 = Test Points 9 = Pulse Output for active and reactive
(isolated)4 = +9V DC Input (non-isolated) 10 = RS-232 Connection (non-Isolated)5 = Connections to shunt
current sensing resistor11 = USB Connection (Isolated)
6 = Connections to Line and Neutral
© 2011 Microchip Technology Inc. DS51931A-page 13
PIC18F87J72 Single-Phase Energy Meter Reference Design
FIGURE 2-1: Top View – Hardware Components..
FIGURE 2-2: Bottom View – Hardware Components.
DANGERHIGH VOLTAGE
R34R30
R33C
37
C7
C33
R36
C29
C39
C40
R24
R25
U3
C24 C25
R27 R26R28
L3
C23R31
C30C27C21C22
R23
U9
C4
C10
C19
D7
C17C16
R18
R17
U6
U4
D4
D5
Q1C41
U7
R15R11C1
R14R12
R29
R32
L2
D6
R19
C6C5
C2
U8
C32
MOV1
C8C9
C38
L1
R20R21
U10
X2
U2
U5
13
12
1817
16
15
14
Legend:
12 = Opto-isolators for Pulse Outputs13 = Power Supply14 = Non-volatile memory for calibration constants and energy usage data15 = PIC18F87J7216 = Isolation IC17 = MCP2200 for USB connection18 = RS-232 Device (not-populated)
DS51931A-page 14 © 2011 Microchip Technology Inc.
Hardware
FIGURE 2-3: Digital Connections.
SWITCH
PIC18F87J72
SPI – EEPROM
RS-232
RC3/SCK
RC5/SDORC4/SDI
SCKSDOSDICSRA1
25LC256
RC6/TXRC7/RX
MAX3232
RD5
RD6
ActivePower
ReactivePower
RB3
SWITCHRB4
(Not Populated)
DB-9 Connector
USB to UART
MCP2200
Mini – USB Connector
(NON-ISOLATED)
(ISOLATED)
Converter
J6
Transceiver
© 2011 Microchip Technology Inc. DS51931A-page 15
PIC18F87J72 Single-Phase Energy Meter Reference Design
2.2 INPUT AND ANALOG FRONT ENDThe PIC18F87J72 Single-Phase Energy Meter Reference Design comes populated with components designed for 220V line voltage. At the bottom of the main board are the high voltage line and neutral connections. There are four connections that are made from the PCB to the meter casing. They are labeled LINE, NEUTRAL, SHUNT1, and SHUNT2. The shunt sits on the high or line side of a two-wire system and the meter employes a hot or “live” ground. The wires going into the shunt to SHUNT1 and SHUNT2 should be twisted together. The wires going into the LINE and NEUTRAL side of the meter should be twisted together, and also kept away from the SHUNT1 and SHUNT2 wires if possible.The neutral side of the two-wire system goes into a resistor divider on the voltage chan-nel input. Anti-aliasing low-pass filters will be included on both differential channels. The voltage channel uses two 332 kΩ resistors to achieve a divider ratio of 664:1. For a line voltage of 230 VRMS, the channel 1 input signal size will be 490 mVPEAK. The cur-rent channel of each phase uses current transformer with a turns ratio of 2000:1 and burden resistance of 56.4 kΩ. The resulting channel 0 signal size is 340 mVPEAK for 20A, or twice the rated maximum current of the meter, still within the input range of the A/D converter of the PIC18F87J72.
FIGURE 2-4: Analog Input Circuitry.
68 nF
1.0 kΩ
68 nF
1.0 kΩ
68 nF
0Ω330 kΩ 330 kΩ
1.0 kΩ
68 nF
1.0 kΩ
PIC18F87J72
CH0+
CH0-
CH1+
CH1+
NEUTRAL
Note: FB = ferrite beads. Ferrite beads have an impedance of the specified value at 100 MHz.
LINE_SHUNT1
LINE_SHUNT2
150 FB (Note)
150 FB (Note)
Shunt (external to PCB part of meter case)
DS51931A-page 16 © 2011 Microchip Technology Inc.
Hardware
2.3 POWER SUPPLY CIRCUITThe power supply circuit for the PIC18F87J72 Single-Phase Energy Meter Reference Design uses a half-wave rectified signal, a single +5V voltage regulator and a 3.3V LDO.
.
FIGURE 2-5: Low-Cost Power Supply Circuit.
150 FB 470Ω1 µF
470 µF
A AAA B
1 3 2+9V DC Power In
(DO NOT USE WHILEMETER IS CONNECTED TO MAINS!)
IN OUTGND
N
L
100 nF
A A
+5V
B
IN OUT
GND 100 nF
B
+3.3V
B
+5V
100 nFMCP1700 10 µF
B
A
470 µF+ +
A
10 µF
© 2011 Microchip Technology Inc. DS51931A-page 17
PIC18F87J72 Single-Phase Energy Meter Reference Design
NOTES:
DS51931A-page 18 © 2011 Microchip Technology Inc.
PIC18F87J72 SINGLE-PHASE ENERGYMETER REFERENCE DESIGN
Chapter 3. Calculation Engine and Register Description
3.1 CALCULATION ENGINE SIGNAL FLOW SUMMARYRMS voltage, RMS current, Active Power and Apparent Power, and the calibration out-put pulse are all calculated through the following process described in Figure 3-1. The calibration registers for each calculation are shown as well as the output registers.
FIGURE 3-1: PIC18F87J72 Calculation Engine Signal Flow
X
X2 Σ X
Σ
OFFSET_POWER_ACT:32
Φ
X2 Σ
OFFSET_V_RMS:16
16/24-bit ΔΣ ADC
ADC
CURRENT
Digital toFrequencyConverter
/
GAI
N_N
UM
R_E
NER
GY
_AC
T:16
GAI
N_D
EN
R_E
NE
RG
Y_A
CT:
8
GAI
N_E
NE
RG
Y_A
CT:
16
I_R
MS
:16
Active Power
RMS Current
RMS Voltage
kW kVA
kVA
hXX
GA
IN_E
NE
RG
Y_A
PP:1
6X
V
X
A
GA
IN_V
_RM
S:1
6
GA
IN_I
_RM
S:16
PO
WER
_APP
:32
EN
ER
GY
_AC
T:32
kWh
X
PO
WE
R_A
CT:
32
GA
IN_P
OW
ER_A
CT:
16
V_R
MS:
16
Apparent PowerE
NE
RG
Y_R
EAC
T:32
X
imp/
kWh
X
kVAR
h
GAI
N_P
OW
ER_R
EA
CT:
16
GA
IN_E
NE
RG
Y_R
EA
CT:
16
PO
WE
R_R
EAC
T:32
ENE
RG
Y_A
PP:3
2
OFFSET_I_RMS:16
16/24-bit DS ADC
X ΣReactive Power
Φ Correction90° with
OFFSET_POWER_REACT:32
ADC
Digital toFrequencyConverter
/
GA
IN_N
UM
R_E
NE
RG
Y_R
EAC
T:16
GA
IN_D
ENR
_EN
ERG
Y_R
EAC
T:8
kVA
R
imp/
kVA
Rh
VOLTAGE
PHASE_COMPENSATION:8
Σ
1/M
ETE
R_C
ON
STA
T
Σ
1/M
ETE
R_C
ON
STA
T
GAIN_
_90:8
X
GA
IN_P
OW
ER
_AP
P:16
COMPENSATION
© 2011 Microchip Technology Inc. DS51931A-page 19
PIC18F87J72 Single-Phase Energy Meter Reference Design
3.2 COMPLETE REGISTER LIST
TABLE 3-1: INTERNAL REGISTER SUMMARYName Bits R/W Description
MODE 8 R/W Configuration register for operating mode of the meter.STATUS 8 R STATUS register.CAL_CONTROL 8 R/W Configuration register for calibration control.LINE_CYC 16 R/W 2n number of line cycles to be used during energy accumulation.LINE_CYC_CNT 16 R Counter for number of line cycles.RAW2_I_RMS 64 R Raw2 RMS value from the current A/D converter in LSBs. RAW_I_RMS 16 R Raw RMS value from the current A/D converter in LSBs. I_RMS 16 R RMS value of the current, post Calibration.RAW2_V_RMS 64 R Raw2 RMS value from the voltage A/D converter in LSBs.RAW_V_RMS 16 R Raw RMS value from the voltage A/D converter in LSBs.V_RMS 16 R RMS value of the voltage, post Calibration.LINE_FREQUENCY 16 R Line Frequency.RAW_POWER_ACT 64 R Raw Active Power.POWER_ACT 32 R Final Active Power, units in watts (W).POWER_APP 32 R Final Apparent Power, units in volt-amperes (VA).RAW_POWER_REACT 64 R Raw Reactive Power.POWER_REACT 32 R Final Reactive Power, units in volt-amperes-reactive (VAR).PERIOD 32 R Period register.ENERGY_ACT 32 R Final Active Energy accumulated.RAW_ENERGY_ACT 64 R Raw Active Energy accumulated. ENERGY_APP 32 R Final Apparent Energy accumulated.RAW_ENERGY_APP 64 R Raw Apparent Energy accumulated.I_ABS_MAX 8 R Not implemented.V_ABS_MAX 8 R Not implemented.ENERGY_REACT 32 R Final Reactive Energy accumulated.RAW_ENERGY_REACT 64 R Final Reactive Energy accumulated.PHASE_COMPENSATION 8 R/W Phase compensation between voltage and current.OFFSET_I_RMS 16 R/W Offset adjustment for RMS current reading.OFFSET_V_RMS 16 R/W Offset adjustment for RMS voltage reading.GAIN_I_RMS 16 R/W Gain adjustment for RMS current. GAIN_V_RMS 16 R/W Gain adjustment for RMS voltage.OFFSET_POWER_ACT 32 R/W Active Power offset.GAIN_POWER_ACT 16 R/W Active Power gain adjust.OFFSET_POWER_REACT 32 R/W Offset correction for Reactive Power.GAIN_POWER_REACT 16 R/W Reactive Power gain adjust to produce X VAR/LSB.GAIN_ENERGY_ACT 16 R/W Not implemented.GAIN_ENERGY_APP 16 R/W Not implemented.GAIN_ENERGY_REACT 16 R/W Not implemented.CF_PULSE_WIDTH 8 R/W Defines CF pulse width from 0 to 255 x 0.8192 ms (0.209s).GAIN_DENR_ENERGY_ACT 8 R/W Active Energy Pulse Output correction factor.GAIN_NUMR_ENERGY_ACT 16 R/W Active Energy Pulse Output correction factor.MODE1_DEF 16 R/W Power-Up Configuration Register.CAL_STATUS 16 R/W Calibration Status.
DS51931A-page 20 © 2011 Microchip Technology Inc.
Calculation Engine and Register Description
3.3 MODEThe MODE register controls the operation of the energy meter. The bit functions are defined by the table below.
MAXIMUM CURRENT 16 R/W Maximum current of the meter (IMAX).CALIBRATION_VOLTAGE 16 R/W Calibration Voltage of the meter (VCAL).CALIBRATION_CURRENT 16 R/W Calibration Current of the meter (ICAL).CALIBRATION_FREQUENCY 16 R/W Calibration Frequency of the meter.METER_CONSTANT 16 R/W Meter Constant in imp/kWh or imp/kVARh.CALIBRATION_LINE_CYCLE 16 R/W Number of line cycles for calibration.GAIN_DENR_ENERGY_REACT 8 R/W Reactive Energy Pulse Output correction factor.GAIN_NUMR_ENERGY_REACT 16 R/W Reactive Energy Pulse Output correction factor.PHASE_COMPENSATION_90 8 R/W Phase delay for Reactive Power.CREEP_THRSHOLD_MINUTE 8 R/W No Load threshold time (minutes).CREEP_THRSHOLD_SECOND 8 R/W No Load threshold time (seconds).ENERGY_ACT_FORWARD 32 R/W Forward Active Energy.ENERGY_ACT_REVERSE 32 R/W Reverse Active Energy.ENERGY_REACT_INDUCTIVE 32 R/W Inductive Reactive Energy.ENERGY_REACT_CAPACITIVE 32 R/W Capacitive Reactive Energy.
TABLE 3-1: INTERNAL REGISTER SUMMARY (CONTINUED)Name Bits R/W Description
REGISTER 3-1: MODE REGISTER
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0— — — — CREEP PHASE ABSOLUTE CF
bit 7 bit 0
Legend:R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-4 Unimplemented: Read as ‘0’bit 3 CREEP: No-Load Threshold bit
1 = Enabled0 = Disabled
bit 2 PHASE: Phase bit1 = Single-Point Phase Correction0 = Multi-Point Phase Correction (future)
bit 1 ABSOLUTE: Positive Only Energy Accumulation Mode bit1 = Positive energy only0 = Both negative and positive energy accumulated (negative energy is subtracted)
bit 0 CF: Active Energy CF Phase Enable bit1 = Phase is enabled to be accumulated into the total energy registers or CF pulse output0 = Phase is DISABLED and is not accumulated into the total energy registers or CF pulse output
© 2011 Microchip Technology Inc. DS51931A-page 21
PIC18F87J72 Single-Phase Energy Meter Reference Design
3.4 STATUSThe STATUS register contains the operational status of the energy meter. The bit functions are defined in the table below.
REGISTER 3-2: STATUS REGISTER
U-0 U-0 U-0 U-0 U-0 R U-0 U-0— — — — — PH_S — —
bit 7 bit 0
Legend:R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-3 Unimplemented: Read as ‘0’bit 2 PH_S: Phase Sign bit
1 = CT may be in backward (if enabled)0 = Operation normal
bit 1-0 Unimplemented: Read as ‘0’
DS51931A-page 22 © 2011 Microchip Technology Inc.
Calculation Engine and Register Description
3.5 CAL_CONTROLThis is the CAL_CONTROL Calibration mode control register. Bit 0 enables the Cali-bration mode. In this mode, the power meter operates as normal, but no updates are made to the voltage, current, power or energy registers as long as bit 1 is low. When bit 1 is set high, the registers are updated for LINE_CYC line cycles (only power and energy registers are updated). After this time, bit 1 is set low by the PIC18F87J72 and the update of the registers will stop. This allows the calibration software to set bit 0, clear the registers, set bit 1 and start reading the desired registers, as well as the CAL_CONTROL register, to check the status of bit 1. When bit 1 goes low, the LINE_CYC line cycles have passed and the registers are final. Note that bit 0 takes effect immediately, and bit 1 will take effect on the very next line cycle. When bit 1 goes low, all registers will be ready to read.
REGISTER 3-3: CAL_CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0— — — — — Reserved CAL_UPDATE CAL_MODE
bit 7 bit 0
Legend:R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-3 Unimplemented: Read as ‘0’bit 2 Reserved:bit 1 CAL_UPDATE: Calibration Update bit
Power and energy registers are updated for LINE_CYC line cycles when cleared. Bit must be set forregisters to begin updating, which starts on the next line cycle after bit is set.1 = When CAL_MODE bit is set, set CAL_UPDATE bit to enable update of power and energy
registers starting on next line cycle. Bit = 1 Single-Point Phase Correction0 = When CAL_MODE bit and CAL_UPDATE bit have been set, CAL_UPDATE bit will be cleared
after the LINE_CYC line cycles. At that point, all registers will be updated and no further updateswill be done until CAL_UPDATE bit is set again or CAL_MODE bit is cleared.
bit 0 CAL_MODE: Calibration Mode bit This bit enables Calibration mode. 1 = Calibration mode enabled 0 = Calibration mode disabled
Note: This register is used in “Multi-Point and Single-Point Calibration” modes only.
© 2011 Microchip Technology Inc. DS51931A-page 23
PIC18F87J72 Single-Phase Energy Meter Reference Design
3.6 LINE_CYC
Number of line cycles as a power of two. A setting of 0 indicates 20 or one line cycle. A setting of 1 is two line cycles (21), a setting of 2 is four line cycles (22), up to a setting of eight which is 256 line cycles. When written, this register will not take effect until the previous number of line cycles has been acquired.
3.7 LINE_CYC_CNT
This register counts from 0 and finishes at 2 (LINE_CYC - 1). Then re-starts at 0, where LINE_CYC represents the value in the LINE_CYC register.
3.8 RAW2_I_RMS
This register is the square of the raw RMS value from the current A/D converter in LSBs. By definition, this register will always contain a positive value, including the sit-uation where power is negative from a backwards CT or otherwise. This register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled).
3.9 RAW_I_RMS
This register is the raw RMS value from the current A/D converter in LSBs (square root of the top 32-bits of (RAW2_I_RMS + OFFSET_I_RMS). By definition, this register will always contain a positive value (even if the CT is in backwards). This register is over-written every LINE_CYC line cycle (written only once if the calibration is enabled).
3.10 I_RMS
This register is the RMS value of phase A current in X A/LSB, as determined by the value in the GAIN_I_RMS register. When displaying the RMS current, multiply the (dec-imal) value in these registers by X to get the display value in Amperes. This register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled).
Name Bits CofLINE_CYC 16 R/W
Name Bits CofLINE_CYC_CNT 16 R
Name Bits CofRAW2_I_RMS 64 R
Name Bits CofRAW_I_RMS 16 R
Name Bits CofI_RMS 16 R
DS51931A-page 24 © 2011 Microchip Technology Inc.
Calculation Engine and Register Description
3.11 RAW2_V_RMS
This register is the square of the raw RMS value from the voltage A/D converter in LSBs. By definition, it will always contain a positive value. This register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled).
3.12 RAW_V_RMS
This is the raw RMS value from the voltage A/D converter in LSBs (square root of the top 32-bits of RAW2_V_RMS + OFFSET_V_RMS. By definition, this register will always contain a positive value. The register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled).
3.13 V_RMS
This register is the RMS value of the voltage, in X 0.01 V/LSB, as determined by the value in the GAIN_V_RMS register. When displaying the RMS voltage, assume a cal-ibrated meter exists and multiply the (decimal) value in these registers by X to get the display value in Volts. This register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled).
3.14 LINE_FREQUENCY
This register holds the measured line frequency using the zero crossing technique.
Name Bits CofRAW2_V_RMS 64 R
Name Bits CofRAW_V_RMS 16 R
Name Bits CofV_RMS 16 R
Name Bits CofLINE_FREQUENCY 16 R
© 2011 Microchip Technology Inc. DS51931A-page 25
PIC18F87J72 Single-Phase Energy Meter Reference Design
3.15 RAW_POWER_ACT
This register is the raw active power, as it represents the sum of current A/D value times voltage A/D value results over LINE_CYC line cycles (each line cycle has 128 results). Each current times voltage multiplication results in a 32-bit word. There are up to 256 line cycles with each line cycle being 128 results, and each result being 32-bit. Thus, 48 bits are needed. This is the register to be read during calibration for calculating the offset and gain values associated with active power, OFFSET_POWER_ACT and GAIN_POWER_ACT. This register is overwritten every line cycle, however if the cali-bration is enabled, the updates will stop once the LINE_CYC line cycles have elapsed.
3.16 POWER_ACT
This register is the value for active power. The goal of the calibration is to get this reg-ister value to equal X W/LSB. This is done with the OFFSET_POWER_ACT and GAIN_POWER_ACT registers. When displaying the power, multiply the (decimal) value in this register by X to get the display value in Watts. This register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled).
3.17 POWER_APP
This is the value of the apparent power. The goal of the calibration is to get this value to equal X VA/LSB. This is done with the GAIN_POWER_APP registers. When display-ing the power for phase A, multiply the (decimal) value in this register by X to get the display value in Watts. This register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled).
3.18 RAW_POWER_REACT
This is the raw reactive power. This register is read during the calibration for calculating the gain values associated with the reactive power and GAIN_POWER_REACT. This register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled). This register is accumulated once a line-cycle basis.
Name Bits CofRAW_POWER_ACT 64 R
Name Bits CofPOWER_ACT 32 R
Name Bits CofPOWER_APP 32 R
Name Bits CofRAW_POWER_REACT 64 R
DS51931A-page 26 © 2011 Microchip Technology Inc.
Calculation Engine and Register Description
3.19 POWER_REACT
This is the value for reactive power. The goal is to get this value to equal X VAR/LSB. This is done with the GAIN_POWER_REACT register. When displaying the power, multiply the (decimal) value in this register by X to get the display value in Watts. This register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled).
3.20 PERIOD
This 32-bit register represents the total number of clock ticks that elapsed over the most recent LINE_CYC line cycle. Each LSB represents 1.6 µs with a 40 MHz clock on the microcontroller. This register is overwritten every LINE_CYC line cycle (written only once if the calibration is enabled).
3.21 ENERGY_ACT
The design updates the Energy register using the CF Pulse blink output count. In this method, the Energy registers increments every pulse by a value equal to 1/(METER_CONSTANT). ENERGY_W = ENEGRY_W + (1/METER_CONSTANT)The gain calibration registers GAIN_NUMR_ENERGY_ACT and GAIN_DENR_ENERGY_ACT hold good for this method also.
3.22 ENERGY_APP
These two registers represent the total apparent energy accumulated so far.
Name Bits CofPOWER_REACT 32 R
Name Bits CofPERIOD 32 R
Name Bits CofENERGY_ACT 32 RRAW_ENERGY_ACT 64 R
Name Bits CofENERGY_APP 32 RRAW_ENERGY_APP 64 R
© 2011 Microchip Technology Inc. DS51931A-page 27
PIC18F87J72 Single-Phase Energy Meter Reference Design
3.23 I_ABS_MAX
NOT IMPLEMENTED IN THIS FIRMWARE/SOFTWARE RELEASE.
3.24 V_ABS_MAX
NOT IMPLEMENTED IN THIS FIRMWARE/SOFTWARE RELEASE.
3.25 ENERGY_REACT
The design updates the reactive energy registered using the CF Pulse blink output count too. In this method, the Energy registers increments every pulse by a value equal to 1/(METER_CONSTANT). ENERGY_REACT = ENERGY_REACT + (1/METER_CONSTANT)The gain calibration registers GAIN_NUMR_ENERGY_ACT and GAIN_DENR_ENERGY_ACT hold good for this method also.
3.26 PHASE_COMPENSATION
Phase delay, signed 8-bit value, provides the phase compensation by ± sampling time/2.
3.27 OFFSET_I_RMS
Square of the offset for RMS current reading, signed 16-bit value. Note that this value should be similar to the ADCs noise squared. At a gain of 1, the noise will be about 1 LSB, 2 LSBs at a gain of 2, 6 LSBs at a gain of 8, 11 LSBs at a gain of 16, and 22 LSBs at a gain of 32. There may be other sources of noise. Using the square of the offset allows for higher accuracy. The value will be added before the square root is taken when calculating the final RMS value.
Name Bits CofI_ABS_MAX 8 R
Name Bits CofV_ABS_MAX 8 R/W
Name Bits CofENERGY_REACT 32 RRAW_ENERGY_REACT 64 R
Name Bits CofPHASE_COMPENSATION 8 R/W
Name Bits CofOFFSET_I_RMS 16 R/W
DS51931A-page 28 © 2011 Microchip Technology Inc.
Calculation Engine and Register Description
3.28 OFFSET_V_RMS
Square of offset for RMS voltage reading, signed 8-bit value. Note that this value should be similar to the ADCs noise squared. For the voltage channel, the noise will be about 1 LSB. There may be other sources of noise. Using the square of the offset allows for higher accuracy. The value will be added before the square root is taken when calculating the final RMS value.
3.29 GAIN_I_RMS
Current gain to produce X A/LSB. The value is always less than one (for example, 32,767 = 0.9999695).
3.30 GAIN_V_RMS
Voltage gain to produce 0.1 V/LSB in the V_RMS register. The value is always less than one (for example, 32,767 = 0.9999695).
3.31 OFFSET_POWER_ACT
Active power offset (this is a straight offset, not the square, as with voltage and current). A much larger value is needed because the power is a running sum. This is a 32-bit signed value.
3.32 GAIN_POWER_ACT
Active power gain to produce X W/LSB. The value is always less than one (for example, 32,767 = 0.9999695).
Name Bits CofOFFSET_V_RMS 16 R/W
Name Bits CofGAIN_I_RMS 16 R/W
Name Bits CofGAIN_V_RMS 16 R/W
Name Bits CofOFFSET_POWER_ACT 32 R/W
Name Bits CofGAIN_POWER_ACT 16 R/W
© 2011 Microchip Technology Inc. DS51931A-page 29
PIC18F87J72 Single-Phase Energy Meter Reference Design
3.33 OFFSET_POWER_REACT
Reactive power offset (this is a straight offset, not the square, as with voltage and cur-rent). A much larger value is needed because the power is a running sum. This is a 32-bit signed value.
3.34 GAIN_POWER_REACT
Reactive power gain to produce X W/LSB. The value is always less than one (for exam-ple, 32,767 = 0.9999695).
3.35 GAIN_ENERGY_ACT
Active energy gain to produce X Wh/LSB. The value is always less than one (for exam-ple, 32,767 = 0.9999695).
3.36 GAIN_ENERGY_APP
Apparent energy gain to produce X VAh/LSB. The value is always less than one (for example, 32,767 = 0.9999695).
3.37 GAIN_ENERGY_REACT
Reactive energy gain to produce X VARh/LSB. The value is always less than one (for example, 32,767 = 0.9999695).
Name Bits CofOFFSET_POWER_REACT 32 R/W
Name Bits CofGAIN_POWER_REACT 16 R/W
Name Bits CofGAIN_ENERGY_ACT 16 R/W
Name Bits CofGAIN_ENERGY_APP 16 R/W
Name Bits CofGAIN_ENERGY_REACT 16 R/W
DS51931A-page 30 © 2011 Microchip Technology Inc.
Calculation Engine and Register Description
3.38 CF_PULSE_WIDTH
Defines the CF pulse width, from 0 to 255. Length of width is valued * 8 * (1/LINE_FREQUENCY)/128) ms. A maximum of 0.266 seconds for 60 Hz and 0.319 seconds for 50 Hz.If the value is 0, no CF pulse is produced.
3.39 GAIN_DENR_ENERGY_ACT
8-bit signed value. Represents the number of shifts for active power energy register ENERGY_ACT before GAIN_DENR_ENERGY_ACT is applied.
3.40 GAIN_NUMR_ENERGY_ACT
Active power gain to produce a specified pulses-per-watt-hour. The value is always less than one (for example, 32,767 = 0.9999695).
3.41 MODE1_DEF
MODE default power-up settings. On power-up, this register will be read and placed into the MODE register.
Name Bits CofCF_PULSE_WIDTH 8 R/W
Name Bits CofGAIN_DENR_ENERGY_ACT 8 R/W
Name Bits CofGAIN_NUMR_ENERGY_ACT 16 R/W
Name Bits CofMODE1_DEF 16 R/W
© 2011 Microchip Technology Inc. DS51931A-page 31
PIC18F87J72 Single-Phase Energy Meter Reference Design
3.42 CAL_STATUSThe CAL_STATUS register holds the calibration status for each individual phase. Bro-ken down by phase, these are the values that can be calibrated. Each bit has the status of 0 = NOT Calibrated, 1 = CALIBRATED.
3.43 MAXIMUM CURRENT
This register holds the maximum current for the meter (IMAX).
3.44 CALIBRATION_VOLTAGE
This register holds the calibration voltage of the meter (VCAL).
3.45 CALIBRATION_CURRENT
This register holds the calibration current of the meter (ICAL).
REGISTER 3-4: CAL_STATUS REGISTER
R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0PHASE_COMP
ENSATIONOFFSET_I_RMS OFFSET_V_R
MS— — GAIN_I_RMS GAIN_V_RMS OFFSET_
POWER_ACTbit 15 bit 8
U-0 R/W-0 U-0 U-0 U-0 R/W-0 U-0 U-0— GAIN_POWER_
ACT— — — GAIN_POWER
_REACT— —
bit 7 bit 0
Legend:R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 All bits: Calibration Register Status bits1 = This register has been calibrated0 = This register is NOT calibrated
Name Bits CofMAXIMUM_CURRENT 16 R/W
Name Bits CofCALIBRATION_VOLTAGE 16 R/W
Name Bits CofCALIBRATION_CURRENT 16 R/W
DS51931A-page 32 © 2011 Microchip Technology Inc.
Calculation Engine and Register Description
3.46 CALIBRATION_FREQUENCY
This register holds the calibration frequency of the meter.
3.47 METER_CONSTANT
This register holds the meter constant in imp/kWh or imp/kVARh.
3.48 CALIBRATION_LINE_CYCLE
This register holds the number of line cycles used during the calibration.
3.49 GAIN_DENR_ENERGY_REACT
8-bit signed value. Represents the number of shifts for reactive power energy register, before GAIN_NUMR_ENERGY_REACT is applied.
3.50 GAIN_NUMR_ENERGY_REACT
Reactive power gain to produce a specified pulse per VAR-hour. The value is always less than one (for example, 32,767 = 0.9999695).
3.51 PHASE_COMPENSATION_90
Phase delay for reactive power, signed 8-bit value, ± sampling time/2 µs.
Name Bits CofCALIBRATION_FREQUENCY 16 R/W
Name Bits CofMETER_CONSTANT 16 R/W
Name Bits CofCALIBRATION_FREQUENCY 16 R/W
Name Bits CofGAIN_DENR_ENERGY_REACT 8 R/W
Name Bits CofGAIN_NUMR_ENERGY_REACT 16 R/W
Name Bits CofPHASE_COMPENSATION_90 8 R/W
© 2011 Microchip Technology Inc. DS51931A-page 33
PIC18F87J72 Single-Phase Energy Meter Reference Design
3.52 CREEP_THRSHOLD_MINUTE
This 8-bit register holds the decimal representation of the creep threshold time in min-utes (total creep is minutes + seconds register).
3.53 CREEP_THRSHOLD_SECOND
This 8-bit register holds the decimal representation of the creep threshold time in sec-onds (total creep is minutes + seconds register).
3.54 ENERGY_ACT_FORWARD
This 32-bit register is the accumulated active energy in the forward direction only. The design updates the Energy register using the CF Pulse blink output count. In this method, the Energy registers increments every pulse by a value equal to 1/(METER_CONSTANT).
3.55 ENERGY_ACT_REVERSE
This 32-bit register is the accumulated active energy in the reverse direction only. The design updates the Energy register using the CF Pulse blink output count. In this method, the Energy registers increments every pulse by a value equal to 1/(METER_CONSTANT).
3.56 ENERGY_REACT_INDUCTIVE
This 32-bit register is the accumulated reactive energy in the inductive quadrants only. The design updates the Energy register using the CF Pulse blink output count. In this method, the Energy registers increments every pulse by a value equal to 1/(METER_CONSTANT).
Name Bits CofCREEP_THRSHOLD_MINUTE 8 R/W
Name Bits CofCREEP_THRSHOLD_SECOND 8 R/W
Name Bits CofENERGY_ACT_FORWARD 32 R/W
Name Bits CofENERGY_ACT_REVERSE 32 R/W
Name Bits CofENERGY_REACT_INDUCTIVE 32 R/W
DS51931A-page 34 © 2011 Microchip Technology Inc.
Calculation Engine and Register Description
3.57 ENERGY_REACT_CAPACITIVE
This 32-bit register is the accumulated reactive energy in the capacitive quadrants only.The design updates the Energy register using the CF Pulse blink output count. In this method, the Energy registers increments every pulse by a value equal to 1/(METER_CONSTANT).
Name Bits CofENERGY_REACT_CAPACITIVE 32 R/W
© 2011 Microchip Technology Inc. DS51931A-page 35
PIC18F87J72 Single-Phase Energy Meter Reference Design
NOTES:
DS51931A-page 36 © 2011 Microchip Technology Inc.
PIC18F87J72 SINGLE-PHASE ENERGYMETER REFERENCE DESIGN
Appendix A. Schematic and Layouts
A.1 INTRODUCTIONThis appendix contains the following schematics and layouts for hardware revision two of the PIC18F87J72 Energy Meter Reference Design:• Board – Schematic• Board – Schematic• Board – Top Silk• Board – Top Trace and Pads• Board – Bottom Silk• Board – Bottom Trace and Pads
A.2 SCHEMATICS AND PCB LAYOUTThe layer order is shown in Figure A-1.
FIGURE A-1: Layer Order.
Top Layer
Bottom Layer
© 2011 Microchip Technology Inc. DS51931A-page 37
PIC18F87J72 Single-Phase Energy Meter Reference Design
A.3 BOARD – SCHEMATIC
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R21
698
B
HD
R2X
1J3
1 2
4 3
1 2
R19
100
B
U4
PC
365N
HD
R2X
1J4
R17 698
B
14
23
1 2
+3.3
V
R11
4.7K
1KR
15S
WR
B3S
-100
2P
B
100N
F C1
MO
M-N
CP
US
H =
HI
B
MP
U_M
CLR
+3.3
V+3
.3V
+3.3
V
100N
FC
23R
314.
7K25AA256
U3
+3.3
V
R32
4.7K
BM
PU
_SD
IM
EM
_CS
B
MP
U_S
DO
MP
U_S
CK
CS
1 2 3 4
8 7 6 5
SO
VS
S
WP
VC
C
HO
LDS
CK SI +3
.3V
P1
HD
R6X
1R
2310
K
MP
U_M
CLR
MP
U_P
GD
MP
U_P
GC
+3.3
V
B
1 2 3 4 5 6
+3.3
V
+3.3
VU
1G
P1U
S30
1XP
1
2
34
BB
IR_R
X10
0NF
C37
B
R36 698
IR_T
XD
1G
L100
MN
1MP
1
B IR
+3.3
V
100N
FC
33
BJ1
D09
S24
A4G
V00
LFB
U10
MA
X32
32
1 6 2 7 3 8 4 9 5
B+3.3
V
PC
SID
E
(1) D
ATA
CA
RR
IER
DE
TEC
T(6
) DAT
A S
ET
RE
AD
Y(2
) RE
CE
IVE
DAT
A(7
) RE
QU
ES
T TO
SE
ND
(3) T
RA
NS
MIT
DAT
A(8
) CLE
AR
TO
SE
ND
(4) D
ATA
TER
MIN
AL
RE
AD
Y(9
) RIN
G IN
DIC
ATO
R(5
) SIG
NA
L G
RO
UN
D
<_ <_
<_
<_
<_
<_ <_
<_
14 7 13 8 16 15
DO
UT1
DO
UT2
RIN
1R
IN2
VC
C
GN
D
DIN
1D
IN2
11 10 12 9 1 3 4 5 2 6
RO
UT1
RO
UT2
C1+
C1- C2+
C2- V+ V-
TX RX
C29
100N
F
C25
100N
F
+3.3
VC32
100N
FC
2410
0NF
B
TP4
TP5
TP3
TP2
TP6
TP7
MP
U_S
CK
MP
U_S
DO
AFE
_FO
/CS
MP
U_S
DI
AFE
_SY
NC
AFE
_CLK
IN
+3.3
V R30
4.7K
120
R34
US
B_T
X
+3.3
V
US
B_R
X
8 7 6 5
AN
1
VDD2
VO2
GN
D2
AN
2
VD
D1
VO1
GN
D1
B
1 2 3 4
AC
SL-
6210
U5
ISO
_GN
D
ISO
_TX
VB
US
ISO
_RX
270
R33
4.7K
R29
VB
US
100N
FC
7
ISO
_GN
D
ISO
_GN
D
ISO
_GN
D
ISO
_GN
D6
Shi
eld
GN
D54321
VB
US
VB
US
IDD+
D-
J5
D-
D+
ISO
_GN
D
C39
6.8u
F
VB
US
100N
FC
40
ISO
_GN
D
U2
VB
US
VB
US
R28
470
1 2 3 4 5 6 7 8 9 10TXG
P3
GP
4G
P5
MCP2200
GP
6/R
XLE
DG
P7/
TXLE
DR
ST
OS
C2
OS
C1
VD
D
RTS
1112131416 15
RX
CTS
GP
2G
P1/
UP
LOA
DG
PO
/SS
PN
DV
US
B17181920
D-
D+
VS
SC
STC
E12
M0G
15L9
9-R
0
31
X2
2
OS
C2
GN
DO
SC
1
ISO
_GN
D
R26 470
R27
470
RE
DR
ED
D9
D8
GM
1JR
3520
0AE
GM
1JR
3520
0AE
VB
US
J6
MPU_RX
US
B_R
XR
X
64
213
5
TXU
SB
_TX
MPU_TX
AA
100N
FC
2710
0NF
C30
B
B
PU
SH
= H
IM
OM
-NC
B3S
-100
2P
SW
1
100N
F C2+3
.3V
R12
4.7K
1KR
14
BB
18P
FC
1518
PF
C20
10 M
HZ
X1
B
+3.3
V
B
SW
3
B3S
-100
2PM
OM
-NC
PU
SH
= H
I
100N
FC
3
R13
4.7K
R16
1K
+3.3
V+3
.3V
+3.3
V+3
.3V
BB
BB
100N
FC
2210
0NF
C12
100N
FC
2110
0NF
C18
60M
PU
_SD
I
MP
U_S
CK
AFE
_F0/
CS
AFE
_DR
59 58 57 56 55 54 53
LCD
_3B
/3G
/3C
/3P
LCD
_3A
/3F/
3E/3
D
LCD
_8A
/8F/
8E/8
D
MP
U_P
GC
B
52 51 50 49 48 47 46 45 44 43 42 41
+3.3
V
MP
U_P
GD
MP
U_S
DO
MP
U_S
DI
MP
U_S
CK
AFE
_CLK
IN
AFE
_CLK
IN
SD
SD
O
SD
SC
K
SD
CS
SE
G30
/INT0
/RB
0
SE
G8/
RTC
C/IN
T1/R
B1
SE
G9/
CTE
D1/
INT2
/RB
2
SE
G10
/CTE
D2/
INT3
/RB
3
SE
G11
/KB
10/R
B4
SE
G29
/KB
I1/R
B5
PG
C/K
BI2
/RB
6
VS
S
OS
C2/
CLK
O/R
A6
OS
C1/
CLK
I/RA
7
VD
D
PG
D/K
BI3
/RB
7
SE
G12
/SD
O1/
RC
5
SE
G16
/SD
I/SD
A/R
C4
SE
G17
/SC
K/S
CL/
RC
3
SE
G13
/CC
P1/
RC
2
SD
CLK
I
B
A
100N
FC
36
R43
10+3
.3V
100N
FC
34
+5V
10R
40
B
+3.3V
R22
DN
P47
NF
C11
LCD_COM1
LCD_COM2
LCD_COM3
LCD_COM4
LCD_4B/4G/4C/4P
AFE_SYNC
+3.3V
B
AFE_SYNC
LCD_1B/1G/1C/1P
LCD_1A/1F/1E/1D
LCD_2B/2G/2C/2P
LCD_2A/2F/2E/2P
MPU_SDO
NET00000
NET00007
AFE_F0/CS 61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80 LCDBIAS3/RE2
COM0/RE3
COM1/RE4
COM2/RE5
COM3/RE6
SEG31/CCP2(1)/RE7
SDAVDD
SEG0/RD0
VDD
VSS
SDVDD
SDMCLR
SEG1/RD1
SEG2/RD2
SEG3/RD3
SEG4/RD4
SDSDI
SEG5/RD5
SEG6/RD6
SEG7/RD7
SD
CH
0+1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
SD
CH
0-
LCD
BIA
S2/
RE
1
LCD
BIA
S1/
RE
0
LCD
BIA
S0/
RG
0
RG
1/TX
2/C
K2
VLC
AP
1/R
X2/
DT2
/RG
2
VLC
AP
2/R
G3
MC
LR
RG
4/S
EG
26
VS
S
VD
DC
OR
E/V
CA
P
SE
G25
/AN
5/S
S/R
F7
SE
G24
/AN
11/C
1IN
A/R
F6
SE
G23
/AN
10/C
1IN
B/C
VR
SE
G22
/AN
9/C
2IN
A/R
F4
SE
G21
/AN
8/C
2IN
B/R
F3
SE
G20
/AN
7/C
1OU
T/R
F2
SD
CH
1-
SD
CH
1+
SEG19/AN6/RF1
ENVREG
AVDD
AVSS
AN3/VREF+/RA3
SDAVSS
AN2/VREF-/RA2
SDREFIN+/SDOUT
SDREFIN-
SEG18/AN1/RA1
AN0/RA0
VSS
SEG15/AN4/RA5
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
SEG14/T0CKI/RA4
SEG32/T1OSI/CCP2(1)/
SDVSS
T1OSO/T13CLKI/RC0
SEG27/TX1/CK1/RC6
SEG28/RX1/DT1/RC7
SDDR
LCD_8B/8G/8C/NC
+3.3V
+3.3V
MEM_CS
LCD_V/K2/R/H2
IR_RX
LCD_V/K1/H1/A/W
IR_TX
MPU_TX
MPU_RX
AFE_DR
47N
FC
13C
14 C16
47N
F
47N
F
47N
F
C17
MP
U_M
CLR
LCD
_4A
/4F/
4E/4
D
C19
10uF
LCD
_5B
/5G
/5C
/NC
LCD
_5A
/5F/
RE
/5D
LCD
_6B
/6G
/6C
/NC
LCD
_6A
/6F/
6E/6
D
LCD
_7B
/7G
/7C
/NC
LCD
_7A
/7F/
7E/7
D
DS51931A-page 38 © 2011 Microchip Technology Inc.
Schematic and Layouts
A.4 BOARD – SCHEMATIC TOP SILK AND BOARDER OUTLINE
© 2011 Microchip Technology Inc. DS51931A-page 39
PIC18F87J72 Single-Phase Energy Meter Reference Design
A.5 BOARD – TOP SILK
DANGERHIGH VOLTAGE
PIC18F87J72 SHUNT METER
U1 D1
D9D8
D3
J4
SW1
SW3
D2
SW2
J3
LCD1
J1
P1
J2
DS51931A-page 40 © 2011 Microchip Technology Inc.
Schematic and Layouts
A.6 BOARD – TOP TRACE AND PADS
© 2011 Microchip Technology Inc. DS51931A-page 41
PIC18F87J72 Single-Phase Energy Meter Reference Design
A.7 BOARD – BOTTOM SILK
DANGERHIGH VOLTAGE
R30
R33
C7
R41
R42
R37
C24 C25
R27 R26
L3
C30C27
C21
R23
C19
C15
C14
R40
R17
R15
R11
C1
R14
R12
C3
R16
R34
C37
R29
L4L5
R32
R36
C40
C26
C22
U9
D7
R43R
22
R19
C5
D5
C2
R13
R24
C31C35
R38
C23
R31
C20
C33
C29
C32
C39
R28
R18
C8
C9
C17C16
C13
C34
C18
L1
R20
R44
R39
L2
R25
C28C6
C38
Q1
U6
C36
C11
C41
R21
U3
U4U7
D4
X1
MOV1
D6
C10
C12U8
C4
DS51931A-page 42 © 2011 Microchip Technology Inc.
Schematic and Layouts
A.8 BOARD – BOTTOM TRACE AND PADS
© 2011 Microchip Technology Inc. DS51931A-page 43
PIC18F87J72 Single-Phase Energy Meter Reference Design
NOTES:
DS51931A-page 44 © 2011 Microchip Technology Inc.
PIC18F87J72 SINGLE-PHASE ENERGYMETER REFERENCE DESIGN
Appendix B. Bill of Materials (BOM)
TABLE B-1: BILL OF MATERIALS (BOM)Qty Reference Description Manufacturer Part Number
23 C1, C2, C3, C5, C6, C7, C9, C12, C18, C21, C22, C23, C24, C25, C27, C29, C30, C32, C33, C34, C36, C40
CAP .10UF 16V CERAMIC Y5V 0603 Kemet C0603C104Z4VACTU
1 C4 CAP 1.0UF 630V METAL POLYPRO EPCOS Inc B32614A6105J0082 C8, C19 CAP CER 10UF 6.3V X5R 0603 Murata
Manufacturing Co., Ltd.GRM188R60J106ME47D
2 C10, C38 CAP 470UF 25V ELECT FC SMD Panasonic® – ECG EEV-FC1E471P5 C11, C13,
C14, C16, C17
CAP CER 47000PF 25V 10% X7R 0603
Murata Manufacturing Co., Ltd.
GRM188R71E473KA01D
2 C15, C20 CAP CER 18PF 50V 5% C0G 0603 Murata Manufacturing Co., Ltd.
GRM1885C1H180JA01D
4 C26, C28, C31, C35
CAP CER 6800PF 50V 5% C0G 1206 Murata Manufacturing Co., Ltd.
GRM3195C1H682JA01D
1 C39 CAP CERAMIC 6.8UF 6.3V X5R 0805
Kemet C0805C685K9PACTU
1 C41 CAP 10UF 16V ELECT FC SMD Panasonic – ECG EEE-FC1C100R10 CP1, CP2,
CP3, CP4, TP2, TP3, TP4, TP5, TP6, TP7
DO NOT INSTALL — —
1 D1 DO NOT INSTALL — —4 D2, D3,
D8, D9LED 1.6X0.8MM 625NM RED CLR SMD
Kingbright Electronics Co., Ltd.
APT1608EC
3 D4, D5, D6 DIODE SCHOTTKY 40V 1A SMB ON Semiconductor® MRA4005T3G1 D7 DIODE ZENER 15V 1.5W SMA ON Semiconductor BZG03C15G1 J1 CONN DSUB RCPT 9POS STR PCB
SLDFCI D09S24A4GV00LF
1 J2 CONN POWERJACK MINI R/A T/H CUI Inc. PJ-102B2 J3, J4 "DO NOT INSTALL — —1 J5 CONN MINI USB RCPT RA TYPE B
SMDTyco Electronics 1734035-2
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.
© 2011 Microchip Technology Inc. DS51931A-page 45
PIC18F87J72 Single-Phase Energy Meter Reference Design
2 (two Shunts) at J6
SHUNT LP W/HANDLE 2 POS 30AU Tyco Electronics 881545-2
1 J6 CONN HDR DUAL 6POS .100 SRT AU
Molex® Connector Corporation
10-89-7062
2 L1,L2 EMI/RFI Suppressors and Ferrites 150ohms 100 MHz .3A Monolithic 1806 SMD
Laird Technologies® LI1806C151R-10
3 L3, L4, L5 EMI/RFI Suppressors and Ferrites 150ohms 100 MHz .8A Monolithic 0805 SMD
Laird Technologies LI0805H151R-10
1 LCD 1 LCD Glass size 65.00 x 18.00 Xiamen Ocular Optics Co., Ltd.
DP076P
1 MOV 1 VARISTOR 275V RMS 20MM RADIAL
EPCOS Inc. S20K275E2
1 P1 6 X 1 Header 2.54mm on center 6 mm/2.5mm
Samtec TSW-106-07-G-S
1 PCB RoHS Compliant Bare PCB, PIC18F87J72 Energy Meter Refer-ence Design
— 104-00280
1 Q1 IIC LDO REG 200MA 3.3V SOT-23-3 Microchip Technology Inc.
MCP1700T-3302E/TT
5 R11, R12, R13, R31, R32
RES 4.70K OHM 1/10W 1% 0603 SMD
ROHM Co., Ltd. MCR03EZPFX4701
3 R14, R15, R16
RES 1.00K OHM 1/10W 1% 0603 SMD
ROHM Co., Ltd. MCR03EZPFX1001
3 R17, R21, R36
RES 698 OHM 1/10W 1% 0603 SMD ROHM Co., Ltd. MCR03EZPFX6980
1 R18 RES 470 OHM 1W 5% 2512 SMD Panasonic – ECG ERJ-1TYJ471U2 R19, R20 RES 100 OHM 1/10W 1% 0603 SMD ROHM Co., Ltd. MCR03EZPFX10001 R22 DO NOT INSTALL — —1 R23 RES 10.0K OHM 1/10W 1% 0603
SMDROHM Co., Ltd. MCR03EZPFX1002
2 R24, R25 RES 330K OHM 1/4W 5% 1206 SMD Stackpole Electronics Inc.
RMCF 1/8 330K 5% R
3 R26, R27, R28
RES SMT, 470-OHM 1/10W 5% 0603 Panasonic – ECG ERJ-3GEYJ471V
2 R29, R30 RES 2.70K OHM 1/10W 1% 0603 SMD
ROHM Co., Ltd. MCR03EZPFX2701
1 R33 RES SMT, 270-OHM 1/10W 5% 0603 Panasonic – ECG ERJ-3GEYJ271V1 R34 RES SMT, 120-OHM 1/10W 5% 0603 Panasonic – ECG ERJ-3GEYJ121V2 R37, R38 RES 1.00K OHM 1/8W 1% 0805 SMD ROHM Co., Ltd. MCR10EZHF10012 R39, R44 DO NOT INSTALL — —2 R40, R43 RES 10.0 OHM 1/10W 1% 0603 SMD ROHM Co., Ltd. MCR03EZPFX10R02 R41, R42 RES 1.0K OHM .1% 1/4W 0805 SMD Susumu Co., Ltd. RGH2012-2E-P-102-B3 SW1,
SW2, SW3SWITCH TACT 6MM 230GF H=4.3MM
OMRON B3S-1002 BY OMZ
TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED)Qty Reference Description Manufacturer Part Number
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.
DS51931A-page 46 © 2011 Microchip Technology Inc.
Bill of Materials (BOM)
1 TP1 Wire Test Point 0.3" Length Component Corporation PJ-202-301 U1 DO NOT INSTALL — —1 U2 MCP2200 USB to UART Serial
ConverterMicrochip Technology Inc.
MCP2200-I/SS
1 U3 IC EEPROM 256 KBIT 10 MHZ 8-SOIC
Microchip Technology Inc.
25AA256-I/SN
2 U4, U7 PHOTOCOUPLER DARL OUT 4-SMD
Sharp Electronic Corporation
PC365NJ0000F
1 U5 OPTOCOUPLER DUAL BI 15MBD 8-SOIC
Avago Technologies ACSL-6210-00RE
1 U6 IC REG LDO 800MA 5.0V SOT-223 National Semiconductor LM1117MP-5.0/NOPB1 U8 PIC18F Microcontroller with 32K
bytes of Flash, 2048 bytes of RAMMicrochip Technology Inc.
PIC18F87J72-80I/PT
1 U10 IC DRVR/RCVR MULTCH RS-232 16-SSOP
Texas Instruments MAX3232CDBR
1 X1 CRYSTAL 10.0000 MHZ 10PF SMD Abracon™ Corporation ABM3B-10.000MHZ-10-1-U-T1 X2 RESONATOR 12.0 MHZ CERAMIC Murata Manufacturing
Co., Ltd.CSTCE12M0G55-R0
TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED)Qty Reference Description Manufacturer Part Number
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.
© 2011 Microchip Technology Inc. DS51931A-page 47
PIC18F87J72 Single-Phase Energy Meter Reference Design
NOTES:
DS51931A-page 48 © 2011 Microchip Technology Inc.
© 2011 Microchip Technology Inc. DS51931A-page 49
PIC18F87J72 Single-Phase Energy Meter Reference Design
NOTES:
DS51931A-page 50 © 2011 Microchip Technology Inc.
AMERICASCorporate Office2355 West Chandler Blvd.Chandler, AZ 85224-6199Tel: 480-792-7200 Fax: 480-792-7277Technical Support: http://www.microchip.com/supportWeb Address: www.microchip.comAtlantaDuluth, GA Tel: 678-957-9614 Fax: 678-957-1455BostonWestborough, MA Tel: 774-760-0087 Fax: 774-760-0088ChicagoItasca, IL Tel: 630-285-0071 Fax: 630-285-0075ClevelandIndependence, OH Tel: 216-447-0464 Fax: 216-447-0643DallasAddison, TX Tel: 972-818-7423 Fax: 972-818-2924DetroitFarmington Hills, MI Tel: 248-538-2250Fax: 248-538-2260IndianapolisNoblesville, IN Tel: 317-773-8323Fax: 317-773-5453Los AngelesMission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608Santa ClaraSanta Clara, CA Tel: 408-961-6444Fax: 408-961-6445TorontoMississauga, Ontario, CanadaTel: 905-673-0699 Fax: 905-673-6509
ASIA/PACIFICAsia Pacific OfficeSuites 3707-14, 37th FloorTower 6, The GatewayHarbour City, KowloonHong KongTel: 852-2401-1200Fax: 852-2401-3431Australia - SydneyTel: 61-2-9868-6733Fax: 61-2-9868-6755China - BeijingTel: 86-10-8528-2100 Fax: 86-10-8528-2104China - ChengduTel: 86-28-8665-5511Fax: 86-28-8665-7889China - ChongqingTel: 86-23-8980-9588Fax: 86-23-8980-9500China - Hong Kong SARTel: 852-2401-1200 Fax: 852-2401-3431China - NanjingTel: 86-25-8473-2460Fax: 86-25-8473-2470China - QingdaoTel: 86-532-8502-7355Fax: 86-532-8502-7205China - ShanghaiTel: 86-21-5407-5533 Fax: 86-21-5407-5066China - ShenyangTel: 86-24-2334-2829Fax: 86-24-2334-2393China - ShenzhenTel: 86-755-8203-2660 Fax: 86-755-8203-1760China - WuhanTel: 86-27-5980-5300Fax: 86-27-5980-5118China - XianTel: 86-29-8833-7252Fax: 86-29-8833-7256China - XiamenTel: 86-592-2388138 Fax: 86-592-2388130China - ZhuhaiTel: 86-756-3210040 Fax: 86-756-3210049
ASIA/PACIFICIndia - BangaloreTel: 91-80-3090-4444 Fax: 91-80-3090-4123India - New DelhiTel: 91-11-4160-8631Fax: 91-11-4160-8632India - PuneTel: 91-20-2566-1512Fax: 91-20-2566-1513Japan - YokohamaTel: 81-45-471- 6166 Fax: 81-45-471-6122Korea - DaeguTel: 82-53-744-4301Fax: 82-53-744-4302Korea - SeoulTel: 82-2-554-7200Fax: 82-2-558-5932 or 82-2-558-5934Malaysia - Kuala LumpurTel: 60-3-6201-9857Fax: 60-3-6201-9859Malaysia - PenangTel: 60-4-227-8870Fax: 60-4-227-4068Philippines - ManilaTel: 63-2-634-9065Fax: 63-2-634-9069SingaporeTel: 65-6334-8870Fax: 65-6334-8850Taiwan - Hsin ChuTel: 886-3-6578-300Fax: 886-3-6578-370Taiwan - KaohsiungTel: 886-7-213-7830Fax: 886-7-330-9305Taiwan - TaipeiTel: 886-2-2500-6610 Fax: 886-2-2508-0102Thailand - BangkokTel: 66-2-694-1351Fax: 66-2-694-1350
EUROPEAustria - WelsTel: 43-7242-2244-39Fax: 43-7242-2244-393Denmark - CopenhagenTel: 45-4450-2828 Fax: 45-4485-2829France - ParisTel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79Germany - MunichTel: 49-89-627-144-0 Fax: 49-89-627-144-44Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781Netherlands - DrunenTel: 31-416-690399 Fax: 31-416-690340Spain - MadridTel: 34-91-708-08-90Fax: 34-91-708-08-91UK - WokinghamTel: 44-118-921-5869Fax: 44-118-921-5820
Worldwide Sales and Service
02/18/11