SA3-PLC Function Instruction Manual - sseec.com.cn · SA3-PLC Function Instruction Manual . ... 3.1 Modbus communication protocol ... X25 M15 1. The

SA3-PLC Function

Instruction Manual

CONTENTS

1. PLC Function Application .......................................................................................................................... 1

1.1 PLC Introduction ................................................................................................................................ 1

1.2 The note of using the PLC function .................................................................................................... 1

1.3 System Configuration ......................................................................................................................... 2

1.3.1 Editing Tools ............................................................................................................................... 2

1.3.2 System Configuration ................................................................................................................. 2

1.3.3 Program Download ..................................................................................................................... 2

1.3.4 Operation Panel Description ...................................................................................................... 3

1.4 Parameter Description ........................................................................................................................ 4

1.4.1 Parameter Description ............................................................................................................... 4

1.4.2 Communication configuration for Program downloads ............................................................. 5

1.4.3 PLC implementation ................................................................................................................... 5

1.4.4 Erase PLC internal storage ......................................................................................................... 5

1.5. PLC configuration .............................................................................................................................. 6

1.5.1 PLC specifications ....................................................................................................................... 6

1.5.2 I/O device map........................................................................................................................... 7

1.5.3 Device function specification ..................................................................................................... 9

1.5.4 Special auxiliary relay function specification ........................................................................... 11

1.5.5 Special data register function specification ............................................................................. 13

1.5.6 Analog input and output .......................................................................................................... 14

1.5.7 Pulse train input ....................................................................................................................... 15

2. Commands Description .......................................................................................................................... 14

2.1 Basic Commands ............................................................................................................................... 14

2.2 Application commands ..................................................................................................................... 22

3. Communication application specification .............................................................................................. 30

3.1 Modbus communication protocol ..................................................................................................... 30

3.2 PLC communication protocol ............................................................................................................ 32

Appendix .................................................................................................................................................... 33

PLC Function Application

1

1. PLC Function Application

1.1 PLC Introduction

The PLC function built-in SA3 provides a simple function of the programmable controller, It provide the Ladder

diagram editing tools SL - Ladder Developer, 21 basic instructions and 12 application instructions.

1.2 The note of using the PLC function

When download PLC programs, please keep the communication frame format is consistent with SL-Ladder

Developer and the inverter.

SA3 provides two communication ports to download the PLC program. Two communication channels are

different but identical to support RS485 communications.

The definition of communication port pins: 1, 2, 3, 6: Reserved; 4: DB; 5:DA; 7: +5V; 8: GND. The figure

shown as follows :

8 1

18

81

Pin number：1,2,3,6:Reserved

4：DB

5：DA

7：+5V

8：GND

PU PORT COM1 PORT

Download the PLC program make sure SA3 built-in PLC in the STOP state. Otherwise the program will

download fail.

The input and output terminals which used in the PLC program are occupied after the function of PLC is

selected(10-55（P.780）≠0).

When PLC controlled inverter run, other sources command fails.

If PLC given target frequency, the other reference source of target frequency fails.

When PLC given target line speed, other target Line speed source fails.

PLC given feedback line speed, other sources of feedback speed become invalid.

When PLC given tension, other sources of tension fails.


2

1.3 System Configuration

1.3.1 Editing Tools

SL-Ladder Developer in Windows XP/win7/win8/win10 system is dedicated editing software of PLC,

Support the ladder diagram and instruction list two kinds of language program design.

1.3.2 System Configuration

The inverter and the personal computer are connected via USB communication or RS-485 communication.

The following figure shows the system configuration for use of the PLC function.

or

Inverter

RS-232C<=>RS-485Converter

Serial Port USB Interface

USB<=>RS-485Converter

Inverter

1.3.3 Program Download

Use "SL - Ladder Developer" software write PLC program

399

After the hardware connection，the inverter is powered on, then modify the parameters (Please refer to

Section1.4.1) to set the communication address formats and protocols which the program download used.

When parameter set to complete, inverter needs power off, then power on make the setting effective.


3

After writing PLC program, press the F4 key to complete PLC program compilation. Select the

"Online->Transfer Setup" in the pop-up dialog box, set the communication format for host computer and

the set of inverter, then click on "Download" and the PLC program will be downloaded to the inverter. After

the download is complete, PLC program in the inverter has been updated; the original PLC program has

been cleared.

1.3.4 Operation Panel Description

PLC runs, the operation panel will displayed as the follow figure:

PLC Function Light

OUTPUT FRE

PLC runs, LCD

displayed "PLC"

PLC state

Display PLC state

PU301(LED) PU301C(LCD)

ON “PLC” PLC runs

OFF --- PLC stop


4

1.4 Parameter Description

1.4.1 Parameter Description

P Number Group Name Setting Range Content

P.32 07-02 Serial communication Baud rate for COM1 0~5

（Note 1） 1: 9600bps 2: 19200bps

P.812 07-27 Serial communication Baud rate for PU

P.33 07-00 Communication protocol selection for COM1

0~2 0: Modbus Protocol 1: Shihlin Protocol 2: PLC Communication Protocol P.810 07-25

Communication protocol selection for PU

P.36 07-01 COM1 station

0~254 The station number which support MODBUS Protocol is from 1 to 254 for Embedded PLC P.811 07-26 PU station

P.48 07-03 COM1 data length

0,1 0: 8bit

1: 7 bit P.813 07-28 PU data length

P.49 07-04 COM1 stop bit length

0,1 0: 1bit

1: 2bit P.814 07-29 PU stop bit length

P.50 07-05 COM1 Parity check

0~2

0: No parity verification

1: Odd

2: Even P.815 07-30 PU Parity check

P.154 07-07

COM1 Modbus format

0~5

0: 1、7、N、2 (Modbus, ASCII)

1: 1、7、E、1 (Modbus, ASCII)

2: 1、7、O、1 (Modbus, ASCII)

3: 1、8、N、2 (Modbus, RTU)

4: 1、8、E、1 (Modbus, RTU)

5: 1、8、O、1 (Modbus, RTU)

P.817 07-32 PU Modbus format

P.780 10-55 PLC action choice 0~2

0: The PLC function is invalid

1: PLC function effectively, PLC RUN

command is from external terminal

input signal or 10-55(P. 781).

2: PLC function effectively, PLC RUN

command is from external terminal

input signal.

P.781 10-56 PLC control RUN/STOP 0,1 0: No effect

1: If 10-55(P.780) = 1, PLC will run.

P.782 10-57 Erase PLC program 0,1

0: Invalid

1: Erase the PLC program. After the

success of the erasure,

10-57(P.782) =0


5

1.4.2 Communication configuration for Program downloads

07-00（P.33）set to 2 Select communication protocols for PLC. 07-02（P.32）set the baud rate to 9600bps

or 19200bps. Other communication parameters Shared with Shihlin Protocol. Default setting of PLC

communication protocol is 1, 7, E, 1 for SL-Ladder Developer. When download PLC programs, please keep

the communication frame format is consistent with SL-Ladder Developer and the inverter.

Note: SL - Ladder Developer support only 9600bps or 19200bps.

1.4.3 PLC implementation

The effective RUN signal of SA3 built-in PLC associated with the 10-55（P.780）setting. If 10-55（P.780）

=1, PLC RUN command is from external terminal input signal which function is PLC_ON_STOP or 10-55(P.

781) set to 1.If 10-55（P.780）=2, PLC RUN command is from external terminal input signal which function

is PLC_ON_STOP. The external input terminals M0, M1, M2, and STF, STR, M3, M4, M5, RES, HDI and

external expansion board EB308R or EB362R which function is PLC_ON_STOP. It means that the

corresponding parameter value is 60, then the terminal can control the RUN signal of PLC .

PLC State：10-55（P.780） = 1

10-56（P.781） PLC_ON_STOP PLC State

0 0 STOP

1 0 RUN

0 1 RUN

1 1 RUN

PLC State：10-55（P.780） = 2

PLC_ON_STOP PLC State

0 STOP

1 RUN

When the output terminal and the input terminal are used in PLC program (P.780 = 1 OR 2), they cannot

be used in other places. Such as a PLC program using X0 and Y0, then the terminal will as the PLC program

command to action, the setting of 03-03(P.80) and 03-10(P.40) are disabled.

Note: 1. When using the PLC function to ensure the terminal which is set to PLC RUN/STOP command is

not used by PLC program. Otherwise the Terminal will lose the ability to control the RUN

command of PLC.

2. When PLC function is programmed with FREQ or RUN command, another FREQ or RUN

command source is invalid.

1.4.4 Erase PLC internal storage

Erase PLC program

When 10-57(P.782) is set to 1, the PLC program will be erased. After the success of the erasure,

10-57(P.782) value will return to zero. If failed to erasure, 10-57(P.782) does not revert to the value 0. PLC

should be in the STOP state, otherwise erase will fail.

Erase the Power off keep area

Special m relay M8032 ON, the content of power off keep area will be cleared.


6

1.5. PLC configuration

1.5.1 PLC specifications

Item SA3 PLC function specifications

Control method Repeated operation

I/O control mode Refresh input and output

Programming language Relay symbolic language (ladder) Function block

No. of instructions

Basic instructions 21

Application instructions 12

Processing speed

Basic instructions Several of us

Application instructions Dozens of us

Program capacity 0 to 399 steps can be set

Number of analog I/O points 3 input points built-in (Terminals 2, 3 and 4) 2 output points (AM1 and AM2)

High-speed pulse input function HDI High-speed input count

I/O configuration

Input（X） 22 input points（X0~X25, Octonary number system）

Output（Y） 20 output points（Y0~Y23, Octonary number system）

Auxiliary relay (M)

General 160 points，M0~M159

Power off keep 80 points，M160~M239

Special 64 points，M8000~M8079

Timer（T） 100ms 8 points，T0~T7, Measurement Range：0~6553.5s

Counter（C） Up-counter 8 points，C0~C7，counter range：0~65535

Data register（D）

General 32 points，D0~D31

Power off keep 16 points，D32~D47

Parameter 1300 points，D1000~D2299

Special 64 points，D8000~D8161

constant（K） 0~65535


7

1.5.2 I/O device map

Input(X)，output(Y)

PLC receiving external switch signal through input port, they have innumerable normally open contacts

and normally closed contacts which can be used infinitely, but the input port can't use the program to drive.

The address code is according to octal code.

PLC input：

X Num 1 2 3

X0 M0

X1 M1

X2 M2

X3 STF

X4 STR

X5 RES

X6 M3

X7 M4

X10 M5

X11 HDI

X12 M10

X13 M11

X14 M12

X15 M13

X16 M14

X17 M15

X20 M10

X21 M11

X22 M12

X23 M13

X24 M14

X25 M15

1. The external input terminals of SA3.

2. External expansion board EB362R in the control panel in slot three.

3. External expansion board EB362R in the control panel in slot two.

Note: If HDI as input terminals, the value of 03-09(P.550) cannot be 41, 54 or 57, otherwise the HDI will not be normal.


8

PLC transmitting external switch signal through output port, they have innumerable normally open

contacts and normally closed contacts which can be used infinitely. The address code is according to octal

code.

PLC output：

Y Num 1 2 3 4 5

Y0 SO1-SE

Y1 SO2-SE

Y2 A1B1C1

Y3 A2B2C2

Y4 ABC10 ABC10

Y5 ABC11 ABC11

Y6 ABC12

Y7 ABC13

Y10 ABC14

Y11 ABC15

Y12 ABC16

Y13 ABC17

Y14 ABC10 ABC10

Y15 ABC11 ABC11

Y16 ABC12

Y17 ABC13

Y20 ABC14

Y21 ABC15

Y22 ABC16

Y23 ABC17

1. The external output terminals of SA3.






9

1.5.3 Device function specification

Auxiliary relay (M)

There are many auxiliary relays in PLC, they can be divided into general, power off keep and special three

categories, the address code of auxiliary relay is according to decimal code. Specific configurations are as

follows:

General 160 points，M0~M159

Power off keep 80 points，M160~M239

Special 64 points，M8000~M8079

General auxiliary relay

The function of general purpose auxiliary relay is similar to intermediate relay in electric control circuit,

the general purpose auxiliary relay can be used as intermediate storage and signal transformation.

Auxiliary relay can be driven by the contact of soft components within the PLC. Auxiliary relays have a

myriad of normally open contacts and normally closed contacts can be unlimited used, but can't drive

external loads directly.

Power off keep auxiliary relay

Power off when the PLC running, the state of power off keep auxiliary relay will be saved in EEPROM of

inverter before inverter thoroughly losing electricity. Then power on, power off keep auxiliary relay which

maintain the state will continue to be used.

Special auxiliary relay

Special auxiliary relay is an internal relay whose application is already determined in the PLC function.

Therefore, undefined special auxiliary relay do not use. Please refer to Section1.5.4 for detailed.

Timer (T)

The timer is equal to time relay in the electrical control circuit, it can be applied in the program to delay

control. The address code of timer is according to decimal code. The PLC function has only one timer,

Timing for timing upwards. Regular period is 100ms; measurement range is from 0 to 6553.5s. There are

eight points that is T0 to T7 which address code is according to decimal code.

Outside of own number memory, timer also have a set value register and a current value register. The

program timing setting is stored to the current value register, timing register records at the current value of

these registers are hexadecimal storage. Real time is the set value multiply by time unit. When the count

value is equal to the set value, the timer output contact action. Timer can use the decimal constants (k) as

the setting value, can also use the data register (d) indirect setting.

Counter (C)

Counter is used to count. There is only one 16-bit increased counter in built-in PLC; measurement range is

from 0 to 65535. There are eight points that is C0 to C7. The current value register and the set value

register are the 16-bit binary registers; the set value range is from 0 to 65535.


10

RST C0

X10

C0

X11

C0

Y0

K10

01

23

45

67

89 10

X10

X11

C0

current value

C0，Y0

As indicated in Figure, X11 ON->OFF, C0 current value increases by 1 at a time, and when the count

reached K10, C0-contact action, Y0 output. Then X1 triggering again, C0 also won't accumulate and kept

in the K10.When the power supply is OK, the current value register of the counter with memory, so before

the counter start counting you should reset the current value register with RST instruction.

Data register

Data register is divided into general data register and special data register.

General data register

Once written data in the general data register, as long as no longer write other data, the general data

register is not changed. If PLC run command OFF or power off, the data will be cleared. The data register

which used to Power off keep can maintain its data.

Special data register

Special data register is an internal relay whose application is already determined in the PLC function.

Please refer to Section1.5.5 for detailed

1.5.4 Special auxiliary relay function specification

Special auxiliary relay is an internal relay whose application is already determined in the PLC function.

Therefore, undefined special auxiliary relay do not use. Specific content as follows：

Number Name Description R/W

M8000 RUN monitoring This contact is On when running R

M8001 RUN monitoring This contact is Off when running R

M8002 Initial pulse Normally open contact (Pulse width=scan period.) R

M8003 Initial pulse Normally closed contact (Pulse width=scan period.) R

M8011 10ms clock pulse 5ms on/5ms off R

M8012 100ms clock pulse 50ms on/50ms off R

M8013 1s clock pulse 0.5s on/0.5s off R

M8014 1min clock pulse 30s on/30s off R


11


M8020 Zero

[Setting condition]: Addition and subtraction result is 0. [Clearing condition]: (1) The next addition and subtraction result is not zero. (2) PLC program or communication.

R/W

M8023 Zero divisor

[Setting condition]: Divisor is 0. [Clearing condition]: PLC program or communication.

R/W

M8030 Parameter values are saved to EEPROM selection

0: Saved 1: No saved

R/W

M8032 Clear power off keep area Clear the data of the power off keep area R/W

M8034 All the output can be disabled Y outputs are disabled R/W

M8035 Special operations end 0: Allow the special operations or in special operations 1: End (Note 1)

R/W

M8036 Set operation mode enable

0: Do not modify the inverter operation mode 1: allow to modify the inverter operation mode

(After modify will be automatically reset) R/W

M8038 Failure to restore all parameters to default values

[Setting condition]: Failure [Clearing condition]: (1) Success (2) PLC program or communication.

R/W

M8041 State control (STF) The inverter runs forward R/W

M8042 State control (STR) The inverter runs reverse R/W

M8043 State control (RL) Multi-speed low speed R/W

M8044 State control (RM) Multi-speed medium speed R/W

M8045 State control (RH) Multi-speed high speed R/W

M8046 State control (RT) The inverter second function R/W

M8047 State control (MRS) The instantaneous stopping of the inverter output. R/W

M8048 Character control After setting condition the state control of the inverter by D8040.

R/W

M8049 Analog output After setting condition, two analog outputs can output. (Note 3)

R/W

M8058 Analog input After setting condition, start monitoring the analog input.

R/W

M8050 State monitoring (RUN) Inverter running

M8051 State monitoring (STF) Forward rotation

M8052 State monitoring (STR) Reverse rotation

M8053 State monitoring (SU) Reaching the output frequency

M8054 State monitoring (OL) Overload detection


12


M8055 State monitoring (END) Restore all parameters to default values completion

M8056 State monitoring (FU) Output frequency detection

M8057 State monitoring (ALARM) Alarm detection

M8059 The custom state output Monitor selected by the output of D8059.

M8060 High-speed pulse count start After setting condition high-speed pulse count R/W

M8061 Clear High-speed count After setting condition high-speed pulse clear R/W

M8065 Over-voltage 0: No over-voltage 1: Over-voltage between Terminal P and Terminal N

R

M8066 Low-voltage 0: No low-voltage 1: Low-voltage between Terminal P and Terminal N

R

M8067 PLC operation monitoring 0: PLC stop 1: PLC running

R

M8068 Inverter reset 0: No reset 1: Reset (Note 2)

R

M8069 Tuning state 0: No tuning 1: During tuning

R

M8070 Power off flag 0: Power on 1: Power off

R

Note: 1. M8035 must be 0, special operations can start. Special operations operate D8153. M8035 can be

cleared by communications, PLC program and PLC STOP.

2. If the value of M8068 is 1, the inverter will be reset. At this time, the user should get ready for the

operation.

3. The data of D8059 and D8060 is not cleared when M8049 Cleared.

1.5.5 Special data register function specification

The application of special data registers is already determined in the PLC function. Specific content as follows：


D8001 PLC firmware version --- R

D8002 Program capacity --- R

D8003 The current program capacity The current program step R

D8010 Present scan time Unit: 0.1ms R

D8011 Minimum scan time Unit: 0.1ms R

D8012 Maximum scan time Unit: 0.1ms R

D8013 Monitor the external terminals which used by PLC program(X0~X7, X10~X17)

Monitor the external terminals which used by PLC program (The external terminals used by the PLC cannot have other functions). The data is according to the high to low arrangement (with left higher than the right), it is corresponds to the soft device number from big to small.

R

D8014 Monitor the external terminals which used by PLC program(X20~X23)

R

D8015 Monitor the external terminals which used by PLC program(Y0~Y7, Y10~Y17)

R

D8016 Monitor the external terminals which used by PLC program(Y20~Y23)

R


13


D8040

The inverter control word b8~b15: Reserve. b7: Inverter emergency stop (MRS) b6: The second function (RT) b5: High speed (RH) b4: Medium speed (RM) b3: Low speed (RL) b2: Reverse rotation (STR) b1: Forward rotation (STF) b0: Reserve.

Corresponding the control word of M8041~M8047.

R/W

D8041 Target frequency Unit: 0.01Hz R/W

D8045 Analog output AM1-5 (0%~100.00%) Set the percentage of AM1-5 output. The unit is 0.1%

R/W

D8046 Analog output AM2-5(0%~100.00%) Set the percentage of AM2-5 output. The unit is 0.1%

R/W

D8050

Inverter status monitoring b15: During tuning b14: During inverter resetting b13~b11: Reserve b10: PLC operating b9: Inverter low-voltage b8: Inverter over-voltage b7: Abnormality occurred b6: Frequency test b5: Restore all parameters to default

values completion b4: Overloaded b3: Reached the frequency b2: During reverse rotation b1: During forward rotation b0: During rotation

R

D8051 Output frequency Unit: 0.01Hz R

D8052 Output current Unit: 0.01A R

D8053 Output voltage Unit: 0.01V R

D8054 Error codes E1, E2 R

D8055 Error codes E3, E4 R

D8056 Analog input 2-5 (-100%~100%) Set the percentage of 2-5 input. The unit is 0.1%

R

D8057 Analog input 4-5 (0%~100%) Set the percentage of 4-5 input. The unit is 0.1%

R

D8058 Analog input 3-5 (0%~100%) Set the percentage of 3-5 input. The unit is 0.1%

R

D8059 User-defined the Monitor status type The function is same to output external terminals, please refer to 03-10 (P.40)

R/W

D8060 Current value of high-speed counter（L） Low 16 bits R

D8061 Current value of high-speed counter（H） High 16 bits (Note 1) R


14


D1000~

D2299

Corresponds to the value of the parameters( P.0~P.1299 )

They only operate on parameters, the serial number of D which minus 1000 is the number of parameters. M8030 to decide whether to parameter save when power off. (Note 2,3)

R/W

D8128 Inverter operation mode set

P.79 = 0 0: PU mode 1: External mode 2: JOG mode P.79 = 1 0: PU mode 1: Invalid 2: JOG mode P.79 = 3 0: CU mode (00-19(P.35) = 0); External

mode (00-19 P.35) = 1). 1: External mode 2: Communication JOG mode

R/W

D8129 Line speed feedback write-in Unit: 0.1 m/min R/W

D8130 Line speed target value write-in Unit: 0.1 m/min R/W

D8131 Tension reference write-in Unit: 1N R/W

D8132

Torque reference write-in (H0000~H2710: 0~100.00% HD8F0~HFFFF: -100.00%~0)

Unit: 0.01% R/W

D8135

2-5 terminal input voltage (H0000~H03E8: 0~10.00V HFF9C~HFFFF: -10.00~0V)

Unit: 0.01V R

D8136 4-5 terminal input current/voltage Unit: 0.01mA/V R

D8137 3-5 terminal input current/voltage Unit: 0.01mA/V R

D8138 AM1-5 terminal output voltage/current Unit: 0.01mA/V R

D8139 AM2-5 terminal output voltage/current Unit: 0.01mA/V R

D8140 DC bus voltage Unit: 1V R

D8141 The electronic thermal accumulation rate of inverter

Unit: 0.01% R

D8142 Inverter output power Unit: 0.01KW R

D8143 The temperature rising accumulation rate of inverter

Unit: 0.01% R

D8144 The NTC temperature accumulation of inverter

Unit: 0.01℃ R

D8145 The electronic thermal accumulation rate of motor

Unit: 0.01% R

D8146 Target pressure when PID control Unit: 0.01% R

D8147 Feedback pressure when PID control Unit: 0.01% R

D8148 Rotating speed fed back by PG Unit: 0.01Hz R

D8149 HDI terminal input frequency Unit: 0.01kHz R


15


D8151 Output torque of inverter Unit: 0.1% R

D8152 Output frequency Unit: 0.01Hz

D8153 Special operation

1: Alarm history clear (P.996) 2: Inverter reset (P.997) 3: P.998 4: P.999_1 5: P.999_2 6: P.999_3 Restoring some parameters to default values (3, 4, 5and 6). 7: Communication P.998 8: Communication P.999_1 9: Communication P.999_2 10: Communication P.999_3 Restoring all parameters to default values except the communication parameter(7, 8, 9 and 10) (Note 4)

R/W

D8154 The inverter operation mode monitor

H0000: Communication mode;

H0001: External mode;

H0002: JOG mode;

H0003: Combination mode 1;





H0008: PU mode;

00000000

b7 ~ b0b11 ~ b8Setting value

of 00-17

Setting value

of 00-18

b14 ~ b12b15

1 :

The second operation mode.

R

D8155 Line speed feedback read-out Unit: 0.1 m/min R

D8156 Line speed target value read-out Unit: 0.1 m/min R

D8157 Tension reference read-out Unit: 1N R

D8158 Torque reference read-out Unit: 0.01% R

Note: 1. If PLC program use M8060 and M8061, and also the PLC program is effective, HDI terminal can only

be used by PLC program.

2. The parameter values written by D1000 ~ D2299 whether or not to power off keep depends on the

value of M8030. M8030 = 0, power off keep; M8030 = 1, no power off keep. The values of

parameters D register will remain until power off or reset the inverter.

3. D1996 to D1999 is invalid.

4. D8153 readout value is 0.


16

1.5.6 Analog input and output

Analog output

If 02-04(P.54) = 13, the output controlled by PLC. M8049 ON, AM1-5 output.

The value of 02-45(P.64) can choose AM1-5 output signal type (the range of voltage or current). When the

user needs to select the output type of terminal AM1, please turn the toggle switch SW3 to the

corresponding type at first.

D8045 can set the percentage of AM1-5 output. (Unit: 0.1%, Range: 0%~100%, Percentage corresponds

to the range set by 02-45(P.64)).

02-45(P.64) Range Percentage SW3

0 0~10V 0~100% Up

1 Reserve ---- ----

2 0~20mA 0~100% Down

3 4~20mA 0~100% Down

If 02-05(P.537) = 13, the output controlled by PLC. M8049 ON, AM1-2 output.

The value of 02-48(P.538) can choose AM2-5 output signal type (the range of voltage or current). When

the user needs to select the output type of terminal AM2, please turn the toggle switch SW4 to the

corresponding type at first.

D8046 can set the percentage of AM2-5 output. (Unit: 0.1%, Range: 0%~100%, Percentage corresponds

to the range set by 02-48(P.538)).

02-48(P.538) Range Percentage SW4

0 0~10V 0~100% Up

1 Reserve ---- ----

2 0~20mA 0~100% Down

3 4~20mA 0~100% Down

Analog input

If M8058 ON, M8058 will monitor the signal value of analog input terminals.

The value of 02-08(P.73) can choose 2-5 analog input signal range. (Unit: 0.1%, Range: -100%~100%,

Percentage set by 02-08(P.73)).

02-08(P.73) Range Percentage

0 0~5V 0~100%

1 0~10V 0~100%

2 0~-5V 0~-100%(Note)

3 0~-10V 0~-100%(Note)

4 -5~5V -100%~100%(Note)

5 -10~10V -100%~100%(Note)

The value of 02-29(P.531) can choose 3-5 analog input signal range and type. (Unit: 0.1%, Range:

0%~100%, Percentage set by 02-29(P.531)). When the user needs to monitor the input voltage of 3-5,

please turn the toggle switch SW1 to the corresponding type at first.


17


0 4~20mA 0~100%

1 0~10V 0~100%

2 0~5V 0~100%

The value of 02-20(P.17) can choose 4-5 analog input signal range and type. (Unit: 0.1%, Range:

0%~100%, Percentage set by 02-20(P.17)). When the user needs to monitor the input voltage of 3-5,

please turn the toggle switch SW2 to the corresponding type at first.


0 4~20mA 0~100%

1 0~10V 0~100%

2 0~5V 0~100%

Note: The percentage is a negative value when negative voltage of terminal 2-5. D register is 16-bit unsigned type, so if the percentage is negative, the value of D register is an absolute value. Such as: the percentage is -100.0%, the value of D8056 is 65536 – 1000 = 64536.

1.5.7 Pulse train input

M8060 is a start command of the built-in PLC high-speed pulse input count function.

M8061 can clear the high-speed pulse input count of built-in PLC

D8060 entered the low 16 bits of the built-in high-speed pulse input count.

D8061 entered the high 16 bits of the built-in high-speed pulse input count.

Count pulse by the HDI input port when 03-09(P.550) set to 54. HDI wiring connection is the same as the

common patterns. High-speed counter can identify the highest pulse frequency is 100 KHZ.

In the following figure, X0 closed and M8060 was setting, then the high-speed pulse input counting start.

D8060 and D8061 store the current count value. D8060 transmitting the low 16 bits value to D0, D8061

transmitting the low 16 bits value to D1.If X1 closed, D8060 and D8061 will be Clearing.

Note: Editing to M8060 or M8061, and 03-09P.550 set to 54 when the PLC program effective, the original function of HDI will be failure.

Commands

18

2. Commands Description

The PLC function built-in SA3 provides 21 basic instructions and 12 application instructions.

2.1 Basic Commands

The structure of ladder diagram and information:

Ladder Diagram

Explanation Command Device Number range

Normally open, contact a LD X、Y、M、T、C

X：0~25, Octal code

Y：0~23, Octal code

M：0~239, M8000~M8063

T：T0~T7

C：C0~C7

K：0~65535

Normally closed, contact b LDI X、Y、M、T、C

Serial normally open AND X、Y、M、T、C

Serial normally closed ANI X、Y、M、T、C

Parallel normally open OR X、Y、M、T、C

Parallel normally closed ORI X、Y、M、T、C

Rising-edge trigger switch LDP X、Y、M、T、C

Falling-edge trigger switch LDF X、Y、M、T、C

Rising-edge trigger in

serial ANDP X、Y、M、T、C

Falling-edge trigger in

serial ANDF X、Y、M、T、C

Rising-edge trigger in

parallel ORP X、Y、M、T、C

Falling-edge trigger in

parallel ORF X、Y、M、T、C

Block in serial ANB ---

Block in parallel ORB ---

Multiple output MPS、MRD、MPP ---

Output command of coil

drive OUT Y、M

PLC program end END ---

--- Coil through to keep SET Y、M

Coil through to remove RST Y、M

Commands

19

Explanation for the Command

Mnemonic Function

LD

The LD command is used on the A contact that has its start from the left BUS or the A contact that

is the start of a contact circuit. Function of the command is to save present contents, and at the

same time, save the acquired contact status into the accumulative register.

Operand X Y M T C D

OK OK OK OK OK NO

Example：

Ladder diagram: Command code:

LD X0

OUT Y0

Mnemonic Function

LDI

The LDI command is used on the B contact that has its start from the left BUS or the B contact

that is the start of a contact circuit. Function of the command is to save present contents, and at

the same time, save the acquired contact status into the accumulative register.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LDI X0

OUT Y0

Mnemonic Function

AND

The AND command is used in the series connection of A contact. The function of the command is

to readout the status of present specific series connection contacts first, and then to perform the

“AND” calculation with the logic calculation result before the contacts, thereafter, saving the result

into the accumulative register.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LD X0

AND X1

OUT Y0

Y0

X0

X0 X1

Y0

Y0

X0

Commands

20

Mnemonic Function

ANI

The ANI command is used in the series connection of B contact. The function of the command is

to readout the status of present specific series connection contacts first, and then to perform the

“AND” calculation with the logic calculation result before the contacts, thereafter, saving the result

into the accumulative register.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LD X0

ANI X1

OUT Y0

Mnemonic Function

OR

The OR commands is used in the parallel connection of A contact. The function of the command is

to readout the status of present specific series connection contacts, and then to perform the “OR”

calculations with the logic calculation result before the contacts, thereafter, saving the result into

the accumulative register.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LD X0

OR X1

OUT Y0

Mnemonic Function

ORI

The ORI command is used in the parallel connection of B contact. The function of the command is

to readout the status of present specific series connection contacts, and then to perform the “OR”

calculations with the logic calculation result before the contacts, thereafter, saving the result into

the accumulative register.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LD X0

ORI X1

OUT Y0

X0

Y0

X1

Y0

X0

X1

Y0

X0

X1

Commands

21

Mnemonic Function

LDP

Usage of the LDP command is the same as the LD command, but the motion is different. It is used

to reserve present contents and at the same time, saving the detection status of the acquired

contact rising-edge into the accumulative register.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LDP X0

OUT Y0

Mnemonic Function

LDF

Usage of the LDF command is the same as the LD command, but the motion is different. It is used

to reserve present contents and at the same time, saving the detection status of the acquired

contact falling-edge into the accumulative register.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LDF X0

OUT Y0

Mnemonic Function

ANDP ANDP command is used in the series connection of the contacts’ rising-edge detection.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LD X0

ANDP X1

OUT Y0

X0

Y0

X0

Y0

X1

Y0

X0

Commands

22

Mnemonic Function

ANDF ANDF command is used in the series connection of the contacts’ falling-edge detection.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LD X0

ANDF X1

OUT Y0

Mnemonic Function

ORP The ORP commands are used in the parallel connection of the contact’s rising-edge detection.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LD X0

ORP X1

OUT Y0

Mnemonic Function

ORF The ORP commands are used in the parallel connection of the contact’s falling-edge detection.

Operand X Y M T C D

OK OK OK OK OK NO

Example：


LD X0

ORP X1

OUT Y0

Mnemonic Function

ANB To perform the “ANB” calculation between the previous reserved logic results and contents of the

accumulative register.

Operand ---

X1

Y0

X0

X0

Y0

X1

X0

Y0

X1

Commands

23

Example：


LD X0

OR X1

LD X2

OR X3

ANB

OUT Y0

Mnemonic Function

ORB ORB is to perform the “OR” calculation between the previous reserved logic results and contents

of the accumulative register.

Operand ---

Example：


LD X0

AND X1

LD X2

AND X3

ORB

OUT Y0

Mnemonic Function

MPS To save contents of the accumulative register into the operation result. (the result operation

pointer pluses 1)

MRD Reading content of the operation result to the accumulative register. (the pointer of operation

result doesn’t move)

MPP Reading content of the operation result to the accumulative register. (the stack pointer will

decrease 1)

Operand ---

Y0

X0

X1

X2

X3

ANB

Y0

X0

X2

X1

X3 ORB

Communication application specification

24

Example：


LD X10

MPS

AND X11

OUT Y0

MRD

AND X12

OUT Y1

MPP

AND X13

OUT Y2

Mnemonic Function

OUT Output the logic calculation result before the OUT command to specific device.

Operand X Y M T C D

NO OK OK OK OK NO

Example：


LD X0

OUT Y0

Mnemonic Function

SET

When the SET command is driven, its specific device is set to be “ON,” which will keep “ON”

whether the SET command is still driven. You can use the RST command to set the device to

“OFF”.

Operand X Y M T C D

NO OK OK NO NO NO

Example：


LD X0

SET M0

X10

Y0

X12

Y1

X13

Y2

MPS

MRD

MPP

X11

X0

Y0

X0

SET M0

Commands

25

Mnemonic Function

RST Clear the contacts or the registers

Operand X Y M T C D

NO OK OK OK OK OK

Example：


LD X0

RST Y0

Mnemonic Function

END Program End

Operand ---

Example：


END

X0

RST Y0

END


26

2.2 Application commands

Description of the application commands.

Classification FNC NO. (Decimal) Mnemonic Codes Function Following number of parameters

Transmission

comparison

10 CMP Compare 3

11 ZCP Zone compare 4

12 MOV Data Move 2

15 BMOV Block move 3

Four

Fundamental

operations of

arithmetic

20 ADD Perform the addition of BIN

data 3

21 SUB Perform the addition of BIN

data 3

22 MUL Perform the multiplication

of BIN data 3

23 DIV Perform the division of BIN

data 3

24 INC Perform the addition of 1 1

25 DEC Perform the subtraction of

1 1

Rotation and

displacement

30 ROR Rotate to the right 2

31 ROL Rotate to the left 2

FNC 10 CMP S2A 16-bit

instructions

Two output data

comparison drive coilDS1

X Y M K T C D

S1 O O O O

S2 O O O O

D O O

Flag: Nothing

Explanation:

1. S 1: value comparison 1, S 2: value comparison 2, D: result comparison

2. The contents in S 1 and S 2 are compared and result is stored in D.

3. The two comparison values are compared algebraically and the two values are signed binary values. When

b15 = 1 in 16-bit instruction, the comparison will regard the value as negative binary values.

Example：

1. Designate device M0, and automatically occupies M0, M1, and M2.

2. When X0 = on, CMP instruction will be executed. When X0 = off, CMP instruction will not be executed and

remain the status before X10 = off.

Commands

27

X0

CMP C0K10 M0

M0

M1

M2

If K10 > C0, M0 = ON

If K10 = C0, M1 = ON

If K10 < C0, M2 = ON

FNC 11 ZCP S2 Zone compare DS1 SA 16-bit

instructions

X Y M K T C D

S1 O O O O

S2 O O O O

S O O O O

D O O

Flag: Nothing

Explanation:

1. S1: Lower bound of zone comparison, S2: Upper bound of zone comparison, S: Comparison value,

D: Comparison result

2. S is compared with its S1, S 2 and the result is stored in D.

Example：

1. Designate device M0, and operand D automatically occupies M0, M1 and M2.

2. When X0 = on, ZCP instruction will be executed. When X0 = off, ZCP instruction will not be executed and

remain the status before X0 = off.

X0

ZCP K120K10 C0

M0

M1

M2

If K10 > C0, M0 = ON

If K10 <= C0<=K120,

M1 = ON

If C0>K120， M2 = ON

M0


28

X Y M K T C D

S O O O O

D O O O

Flag: Nothing

Explanation:

1. S: Source of data, D: Destination of data

2. When this instruction is executed, the content of S will be moved directly to D. When this instruction is not

executed, the content of D remains unchanged.

Example：

When X0 = off, the content in D10 will remain unchanged. If X0 = on, the value K10 will be moved to D10 data

register.

FNC 15 BMOV Block moveDS NA 16-bit

instructions

X Y M K T C D

S O O O

D O O O

N O O

Flag: Nothing

Explanation:

1. S: Start of source devices, D: Start of destination devices, n: Number of data to be moved

2. The contents in n registers starting from the device designated by S will be moved to n registers starting from

the device designated by D. If n exceeds the actual number of available source devices, only the devices that

fall within the valid range will be used.

Example：

When X0 = on, the contents in registers D0 ~ D5 will be moved to the 6registers D10 ~ D15.

X0

MOV K10 D0

X0

BMOV D0 D10 K6

D0

D1

D2

D3

D4

D5

D10

D11

D12

D13

D14

D15

FNC 12 MOV Moving the data DSA 16-bit

instructions

Commands

29

FNC 20 ADD BIN addition S2S1 DA 16-bit

instructions

X Y M K T C D

S1 O O O O

S2 O O O O

D O O O

Flag: M8020 0: Addition and subtraction result is not 0.

1: Addition and subtraction result is 0.

Explanation:

1. S1: Summand, S2: Addend, D: Sum

2. This instruction adds S1 and S2 in BIN format and store the result in D.

3. The result is zero, M8020 is set. The result is not zero, M8020 is cleared.

Example：

When X0 = on, the content in D0 will plus the content in D10 and the sum will be stored in D20.

FNC 21 SUB SubtractionS2S1 DA 16-bit

instructions

X Y M K T C D

S1 O O O O

S2 O O O O

D O O O

Flag: M8020 0: Addition and subtraction result is not 0.

1: Addition and subtraction result is 0.

Explanation:

1. S1: Minuend, S2: Subtrahend, D: Remainder

2. This instruction subtracts S1 and S2 in BIN format and stores the result in D. Participating in operation

numbers are positive integers, so ask for S1>= S2.

3. The result is zero, M8020 is set. The result is not zero, M8020 is cleared.

Example：

When X0 = on, the content in D0 will minus the content in D10 and the remainder will be stored in D20. If the

difference is zero, the M8020 will be set to 1.

X0

ADD D0 D10 D20

X0

SUB D0 D10 D20


30

FNC 22 MUL BIN multiplication S2S1 DA 16-bit

instructions

X Y M K T C D

S1 O O O O

S2 O O O O

D O O O

Flag: Nothing

Explanation:

1. S1: Multiplicand, S2: Multiplication, D: Product

2. This instruction multiplies S1 by S2 in BIN format and stores the result in D. Be careful with the

positive/negative signs of S1, S2 and D when doing 16-bit operations.

Example：

When X0 = on, the content in D0 will multiplied by the content in D10 and the remainder will be stored in D20.

The 16-bit D0 is multiplied by the 16-bit D10 and brings forth a 32-bit product.

FNC 23 DIV BIN division S2S1 DA 16-bit

instructions

X Y M K T C D

S1 O O O O

S2 O O O O

D O O O

Flag:：M8023 0：The divisor is not 0.

1：The divisor is 0.

Explanation:

1. S1: Dividend, S2: Divisor, D: Quotient

2. This instruction divides S1 and S2 in BIN format and stores the result in D. Be careful with the

positive/negative signs of S1, S2 and D when doing 16-bit operations, Only quotient stored in D. The divisor

is not 0, M8023 will be set to 1.

Example：

When X0 = on, D0 will be divided by D10; the quotient will be stored in D20.

X0

MUL D0 D10 D20

X0

DIV D0 D10 D20

Commands

31

FNC 24 INCIncrement:

BIN plus 1 D

A 16-bit

instructions

X Y M K T C D

D O O O

Flag: Nothing

Explanation:

1. D: Destination device.

2. If the instruction is not a pulse execution one, the content in the designated device D will plus “1” in every

scan period.

3. This instruction adopts pulse execution instructions.

4. INC instruction has only one operand, and does not affect the zero flag.

5. Operation data as an unsigned 16-bit binary number.

Example：

When X0 goes from Off to On, the content in D0 minuses 1 automatically.

FNC 24 DECDecrement:

BIN minus 1 D

A 16-bit

instructions

X Y M K T C D

D O O O

Flag: Nothing

Explanation:

1. D: Destination device.

2. If the command is not a pulse execution type, the content in the designated device D will minus “1” in every

scan period.

3. This instruction adopts pulse execution instructions.

4. DEC instruction has only one operand, and does not affect the zero flag.


Example：

When X0 goes from Off to On, the content in D0 minuses 1 automatically.

FNC 30 RORRotate to

the right D N

A 16-bit

instructions

X0

INC D0

X0

DEC D0


32

X Y M K T C D

D O O O

N O

Flag: Nothing

Explanation:

1. D: Device to be rotated, N: Number of bits to be rotated in 1 rotation

2. This instruction rotates the device content designated by D to the right for N bits.


4. This instruction adopts pulse execution instructions. A move cannot be more than 15 bit.

Example：

When X0 goes from Off to On, the 16-bit (4 bits as a group) in D10 will rotate to the right.

X0

ROR D0 K4

1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0

Rotate to the right

1 1110000 0 0 0 0 0 0 0 0

After one rotation to the right


33

FNC 31 ROLRotate to

the left D N

A 16-bit

instructions

X Y M K T C D

D O O O

N O

Flag: Nothing

Explanation:

1. D: Device to be rotated, N: Number of bits to be rotated in 1 rotation

2. This instruction rotates the device content designated by D to the left for N bits.


4. This instruction adopts pulse execution instructions. A move cannot be more than 15 bit.

Example：

When X0 goes from Off to On, the 16-bit (4 bits as a group) in D10 will rotate to the left.

X0

ROL D0 K4

1 1110 0 0 0 0 0 0 00000

Rotate to the left

1 1110000 0 0 0 0 0 0 0 0

After one rotation to the left


34

3. Communication application specification

3.1 Modbus communication protocol

Embedded PLC supports Modbus RTU and ASCII communications protocols to read and write the soft

devices.

A soft device Modbus addresses are divided into groups and bit address. To the operation of the group

address is 16 bits of soft devices to read and write at the same time. Read and write at most 416 addresses

at a time. Word soft devices have group address only, read and write at most 20 at a time. If parameter D

need write must ensure that the inverter is in communication mode.

PLC soft device Modbus contact address:

Soft device Group address Bit address

X 0x2000~0x2001 0x3000~0x3015

Y 0x2002~0x2003 0x3020~0x3033

M 0x2004~0x2012 0x3040~0x312F

T(位) 0x2013 0x3130~0x3137

C(位) 0x2014 0x3140~0x3147

Special M 0x2015~2019 0x3150~0x319F

T set value 0x2034~0x2043

---

C set value 0x2044~0x2053

T current value 0x2054~0x2063

C current value 0x2064~0x2073

D 0x2074~0x20A3

Special D 0x20A4~0x2145

---

Special D 0x000~0x0513


35

Communication with PLC available order code

Code Function Operating mode suitable object

0x01 The coil state read Bit manipulation, Read single / Read multiple Y,M,T,C

0x02 The input state read Bit manipulation, Read single / Read multiple X,Y,M,T,C

0x03 Read single data Word manipulation, Read single / Read multiple

X, Y, M, T, C, D, T current value, T set value, C current value, C set value.

0x05 Force single coil Bit manipulation, Write single Y,M ,T,C

0x06 Write single information Word manipulation, Write single

Y, M, T, C, D, T current value, T set value, C current value, C set value.

0x10 Write more information Word manipulation, Write multiple

Y, M, T, C, D, T current value, T set value, C current value, C set value.

Communication example:

Example 1: Read the state OF M16 ~ M33.

Bit manipulation：

Enquire：01 01 30 50 00 12 B3 16

Reply：01 01 03 BC ED 03 F0 FB

Response data parsing：0xBC is corresponding to the state of M23 ~ M16. M18, M19, M20, M21 and M23 are

1; M16, M17 and M22 are 0.

0xED is corresponding to the state of M31~M24. M24, M26, M27, M29, M30 and M31

are 1, M25 and M28 is 0.

0x03 is corresponding to the state of M33~M32. M33 and M32 less than one byte, so

the excess is 0.M33, M32 with a status of 1.

Word manipulation：

Enquire：01 03 20 05 00 02 DF CA

Reply：01 03 04 ED BC A5 67 34 01

Response data parsing：0XEDBC is corresponding to the state of M31~M16.

M18,M19,M20,M21,M23,M24,M26,M27,M29,M30 and M31 are 1,M16, M17, M22,

M25 and M28 are 0.

0XA567 is corresponding to the state of M47~M32. Here we only care about M33,

M32, and other can no matter.

The use of the command code 0x02 is the same as 0x01, just the range is different.


36

Example 2: Forced M100 ON

Command：01 05 30 A4 FF 00 C2 D9

Reply: 01 05 30 A4 FF 00 C2 D9

Forced M100 OFF

Command：01 05 30 A4 00 00 83 29

Reply: 01 05 30 A4 00 00 83 29

Analysis: Write value 0xff00 means operations command a soft device state to ON. Write a value of 0x0000,

which commands the operation for the soft device state to OFF.

Example 3: Read the value of D20

Enquire：01 03 20 88 00 01 0F E0

Reply：01 03 02 17 70 B6 50

Example 4: Read the value of D0~D10

Enquire：01 03 20 74 00 0B 4F D7

Reply：01 03 16 00 19 01 E8 00 10 17 70 13 88 07 DA 00 00 10 00 12 00 21 03 FF FF 06 AA

Example 5: Write 3000 to D20

Command：01 06 20 88 0B B8 05 62

Reply：01 06 20 88 0B B8 05 62

Example 6: Write to D2~D6

Command：01 10 20 76 00 05 0A 13 88 07 D0 17 70 10 68 0A 28 F0 AF

Reply：01 10 20 76 00 05 EA 10

3.2 PLC communication protocol

If P. 33 set to 2, it means choose the PLC communication protocol, P.48 ~ P.50 set communication format, P.

32 choose communication baud rate. PLC protocol is a special agreement with PLC program download or

the embedded PLC and shilin HMI communication. Shihlin HMI EC200 currently supports this protocol.

Use with HMI can realize the I/O monitoring, internal soft device monitoring and monitoring of PLC program

running

Appendix

37

Appendix

SA3 built-in PLC can be used with the Shihlin HMI to read PLC ladder diagram and instruction list, modify the

instruction sheet and monitor PLC operation. As shown in the figure below, the serial ports pin definition is for

RS232, RS422 and RS485 of Shilin HMI.

Documents

SA3-PLC Function Instruction Manual - sseec.com.cn · SA3-PLC Function Instruction Manual . ... 3.1 Modbus communication protocol ... X25 M15 1. The