UCTMDOC1-01 COPYRIGHT © Cylon Controls Ltd. 1995
Training
Course:
Stage One
UNITRON
Building Management System
UCTMDOC1-01 COPYRIGHT © Cylon Controls Ltd. 1995
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Contents Introduction ....................................................................................................................4
Cylon Controls: Company profile...........................................................................................................5
Registration form...................................................................................................................................7
Section 1 System concept ...........................................................................................5
Communications controllers and universal controllers ..........................................................................6
UCC4 ....................................................................................................................................................6
UC16.....................................................................................................................................................6
Universal communications controller, UCC4 .........................................................................................7
Universal controller 16 points, UC16.....................................................................................................7
Universal inputs.....................................................................................................................................8
Universal outputs ..................................................................................................................................8
Section 2 Hardware configuration and input jumpers...............................................9
UC controller power and watchdog LED indicators .............................................................................10
UC16 & UC12 universal input selection .............................................................................................11
UC16 & UC12 input/output summary ..................................................................................................11
UC12, UC16 address/baud switch ......................................................................................................12
Universal input jumper selection .........................................................................................................13
UC12 UC16 & UC16DI address/baud switch exercise........................................................................14
UC16 exercise.....................................................................................................................................15
Section 3 UCC4 hardware configuration and LED display......................................16
UCC4 with 1 RS232 port .....................................................................................................................17
UCC4 with 3 RS232 ports ...................................................................................................................17
UCC4 power and watchdog LED indicators ........................................................................................18
UCC4 address and configuration switches .........................................................................................19
UCC4 seven segment display .............................................................................................................20
UCC4 address and configuration switch exercise...............................................................................21
UCC4 exercise ....................................................................................................................................22
Section 4 Other components.....................................................................................23
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Reference............................................................................................................................................24
Exercise ..............................................................................................................................................27
Section 5 Subnetworks ..............................................................................................28
UCC4 node with UC16 controllers ......................................................................................................29
UCC4 node with UC12 controllers ......................................................................................................29
UCC4 node with UC16 controllers and UC16DI modules ...................................................................30
UCC4 node with UC16 and UC12 controllers and UC16DI modules ..................................................30
Setting the sub-net 120R terminating resistor .....................................................................................31
Connecting UCC4s to the Arcnet bus .................................................................................................31
2 UCC4 nodes with UC16 controllers..................................................................................................32
3 UCC4 nodes with UC controllers and a supervisory PC ..................................................................32
Subnetwork exercise...........................................................................................................................33
Section 6 Arcnet bus’s active hubs and distances..................................................35
Arcnet configurations ..........................................................................................................................36
Arcnet exercise ...................................................................................................................................41
Section 7 Application of external devices ...............................................................45
Section 8 Cable and installation recommendations ................................................50
Contents..............................................................................................................................................51
Thermistor cable .................................................................................................................................52
Analog and digital input cables ...........................................................................................................53
Analog and digital output cables .........................................................................................................54
UCC4 RS232 cables ...........................................................................................................................55
UC16 service port RS232 cable ..........................................................................................................56
Sub-net RS485 cable ..........................................................................................................................57
Arcnet media .......................................................................................................................................58
Power supply cable .............................................................................................................................59
Safety codes .......................................................................................................................................60
Section 9 Configuration .............................................................................................62
Site Configuration window...................................................................................................................63
System Configuration window.............................................................................................................64
User configuration ...............................................................................................................................65
Site directory structure ........................................................................................................................66
Exercise ..............................................................................................................................................67
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Section 10 The Engineering Tool ..............................................................................68
The Engineering Tool..........................................................................................................................69
Introduction to the Engineering Tool ...................................................................................................71
Examples of strategies........................................................................................................................72
Globals exercise..................................................................................................................................75
Section 11 Time schedules........................................................................................76
UC16 time schedule............................................................................................................................77
UCC4 Schedule Planner .....................................................................................................................78
Exercise ..............................................................................................................................................80
Section 12 Alarm text .................................................................................................81
UCC4 alarm text..................................................................................................................................82
Exercise: .............................................................................................................................................84
Section 13 Datalogs ...................................................................................................85
Datalogs ..............................................................................................................................................86
Exercise ..............................................................................................................................................87
Section 14 CCView and CCDraw ...............................................................................88
Reference............................................................................................................................................89
CCDraw exercise ................................................................................................................................90
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Introduction
The company profile provides an overview of Cylon Controls. If you have any queries
regarding particular aspects of this which may be of help for marketing purposes or for any
other reason please ask.
To allow us to form a profile of the training delegates, please complete the registration form.
This will enable us to gather some relevant information about your own requirements and
previous experience.
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Cylon Controls: Company profile
Cylon was formed in 1985 by three graduate electronics engineers to apply the latest
generation electronics technology to building services and environmental control. Today
Cylon is the largest privately owned manufacturer of building control in Europe and an
established, substantial OEM supplier. Principal markets include the UK, Ireland, Italy,
Germany and France. Cylon is quality assured to ISO 9000-2.
Cylon's business focus is the development of innovative building management systems:
ensuring the right conditions for work and leisure, improving maintenance, and deploying
energy and utility resources appropriately and economically. Cylon secures these objectives
through the development and supply of UNITRON, an intelligent control system which draws
upon the leading edge of direct digital control, network communications, software and
electronics engineering.
Cylon systems are specified across all sectors of the building services industry - from
intelligent commercial property with integrated HVAC, lighting and life safety, to the small
shop or school with, perhaps, just one or two zone heating. In the commercial sector, Unitron
projects include the new International Rail Terminal at Waterloo and the prestigious Ludgate
development. Cylon's public sector projects include health and education authorities such as
Tayside Health Board and the University of East Anglia. Industrial applications range from
'clean' pharmaceuticals, such as A.H. Cox, to aerospace, rail and heavy engineering firms.
Unitron is also specified to regional energy suppliers like Northern Electric.
This breadth of application is a reflection not just of how 'universal' and flexible Unitron
controllers are, but of how usable they are. For example, Cylon has developed fully
configurable keypads for non-technical staff, and comprehensive building management
supervisors for facilities and estates managers. Additionally, Cylon's support for 'open
architectures' mirrors the likely development of building management practices by freely
permitting the creation of inter-operable systems, via gateways and servers, and across office
systems.
Cylon is fully committed to the adoption of 'green' building services methods such as ice
storage, chilled ceilings and natural ventilation. Not only is the Unitron system compatible
with such techniques, but the company has undertaken a number of successful pioneering
projects into green applications, sponsored by EC research initiatives.
Cylon's experience in building services controls is under-pinned by an expertise in electronics
design that is evident throughout the Unitron range. All products are conceived, developed
and documented by an in-house research and development team at its Dublin headquarters.
Their experience in advanced electronics design, graphical user interfaces and windows-based
expert systems is evident in the many technically advanced features of the Unitron range.
Even the smallest Unitron controller benefits from the massive processing power of modern
integrated circuits. Multi-layer circuit boards contribute not only to the compact size of
Unitron controllers, but to comprehensive CENELEC emissions and immunity ratings across
the range. Cylon's own implementation of ARCnet, the process industry standard, results in
High Speed Internetwork with a transfer speed of 2.5 Megabits per second from just one VLSI
microchip. 32 bit processors handle other Unitron communications. Future compatibility is
assured by open communications, and the adoption of proprietary networks which are
recognised and enduring standards.
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In the UK Cylon does not supply or engineer directly, preferring to focus on its twin strengths
of control system development and technical support. Instead Cylon has an accredited
distributor network consisting only of leading control systems suppliers. Each 'Approved
Cylon Systems Integrator' works closely with Cylon, and in turn is able to offer a
comprehensive support package from outline specification and engineering - using automated
design, testing and documentation methods through to project management, training and post-
installation support.
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Registration form
Name ..........................................................................................Date .....................................
Company .................................................................................................................................
Position ...................................................................................................................................
Brief descriptions of duties/responsibilities .............................................................................
.................................................................................................................................................
Have you any previous Cylon experience, including CC200/2100? Yes � No �
Have you worked with any other building management system? Yes � No �
If yes, give some brief details: ...................................................................................................
.................................................................................................................................................
.................................................................................................................................................
Are you familiar with Microsoft Windows? Yes � No �
Have you attended any other Cylon training course? Yes � No
�
If yes, give details ....................................................................................................................
.................................................................................................................................................
.................................................................................................................................................
Section 1
System concept
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Communications controllers and universal controllers
The UNITRON network is made up of two basic components:
• the UCC4
• the UC16.
UCC4
This compact communications controller co-ordinates all communication functions on its own
subnetwork of up to 32 controllers.
In addition, the UCC4, when fitted with an Arcnet card, can interface with other subnetworks
over UNITRON's high speed internetwork, allowing larger integrated systems to be
assembled.
The UCC4 has the facility, via its RS232 ports, to be connected to supervisory PCs, printers,
modems etc.
UC16
These are powerful, fully programmable controllers. They work as a type of intelligent
input/output board with 8 inputs and 8 outputs.
The UC16 has the capacity to act as an integral part of a subnetwork or else as a stand-alone
controller. This modular approach gives great flexibility and reduces installation and
maintenance costs.
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Universal communications controller, UCC4
• Subnetwork provides communication for up to 32 universal controllers
• 1 or 3 RS232 ports
• Optional Arcnet card permits high level network capability
• Keypads available for full site interrogation
• DIN rail mounted
• 24 Volt AC supply
Universal controller 16 points, UC16
• Designed to operate building services
• Fully programmable
• 8 universal inputs and 8 universal outputs
• Rapid scan speed – less than 1 second
• Local PC port
• DIN rail mounted
• 24 Volt AC supply
• Stand-alone capability
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Universal inputs
Jumper settings on each input select the sensor type.
Analog
• Active voltage 0 -10 Volts
• Passive detectors (800 ohms - 5 kohms)
• Active current input (0 - 20 mA)
Digital
• Volt free contact
Pulse
• Up to 12 Hz
Universal outputs
• 0 - 10 Volt DC at 10 mA
• For digital outputs a relay pack (RP4 or RP8) is required.
Section 2
Hardware configuration
and input jumpers
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UC controller power and watchdog LED indicators
Red LED status Indicating power to unit
ON Power is applied to UC controller
OFF No power
Green LED status Indicating status of UC controller
ON Opening correctly but not communicating on RS485
OFF Serious fault
Pulses once per second Operating correctly and communicating on RS485
Pulses rapidly No strategy or setup module sent
OR corrupt
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UC16 & UC12 universal input selection
UC16 & UC12 input/output summary
INPUTS OUTPUTS
Controller Analog, Digital Universal Triac
Type Digital,
Pulse
0-10Vdc @
10mA
24Vac @
500mA
UC16 PG 8 8
UC16 IP 8 8
UC12 FC 4 4 4
UC12 VAV 4 2 6
UC 8 4 As required As required
Note: The UC8 has 4 outputs configured in one of 5 output options giving every combination
of 0-10V/Triac outputs.
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UC12, UC16 address/baud switch
Bits 1 - 6 set the controllers address
Bits 7 & 8 set the controllers baud rate
NOTE: Each controller requires its own unique address on the RS485 network starting
at one and incrementing by one. All devices on the same network must be set to the
same baud rate.
All address settings are shown in the UC16 Hardware Manual, Appendix A. All baud rate
settings are shown in the UC16 Hardware Manual, page 6.
The example shown above is controller number 1 and the baud rate is 9600.
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Universal input jumper selection
Jumper settings:
Jumper in Jumper out
Indicate the proper jumper positions for the following inputs:
1. Analog active voltage input, 0 - 10V dc.
2. Analog active current input, 0 - 20 mA.
3. Analog passive input, Ohms.
4. Digital Volt free contact input.
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UC12 UC16 & UC16DI address/baud switch exercise
Address = 17 Address = 32 Baud rate = 38,400 Baud rate = 9,600
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UC16 exercise
1. Supply voltage for a UC16 is:
(tick the correct answer)
� 240 Volts AC � 24 Volts AC � 18 Volts DC
2. Which of the following statements are true?
• A UC16PG has 8 universal inputs and 8 universal outputs. True � False �
• A UC16IP has 8 universal inputs and 8 digital inputs. True � False �
• A UC16 controller stand alone requires either a keypad or
real time clock module to maintain time. True � False �
• A UC16 can be fitted with an Arcnet board. True � False �
• A UC12 can be fitted with a keypad and real time clock. True � False �
4. Which of the following are true?
• The UC16 has either a RS232 port or a RS485 port. True � False �
• The UC16 has both a RS232 port and a RS485 port. True � False �
• A UC16s RS485 port is disabled if a keypad is fitted. True � False �
• The UC16's RS485 port is disabled if a PC is connected
to its RS232 port. True � False �
Section 3
UCC4 hardware configuration
and LED display
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UCC4 with 1 RS232 port
UCC4 with 3 RS232 ports
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UCC4 power and watchdog LED indicators
Red LED status Indicating power to unit
ON Power is applied to UCC4 controller
OFF No power
Green LED status Indicating status of UC controller
ON Opening correctly with valid setup
OFF Serious fault
Flashes momentarily A valid packed received from PC
Pulses rapidly No setup sent OR corrupt
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UCC4 address and configuration switches
• Switch 1 (SW1) is the 8 bit address switch. Each UCC4 has its own unique address.
Appendix 1 of the UCC4 Hardware Manual illustrates all 255 addresses available.
• Switch 2 (SW2) is the configuration switch, used to configure RS232 port 1.
• Bits 1 & 2 select the RS232 baud rate.
• Bits 3 & 4 select the RS485 (sub-net) baud rate.
• Bits 5 & 6 select the type of peripheral device which is connected to port 1: computer,
modem, printer, or none.
A full explanation of configuration switch settings is found on page 11 of the UCC4
Hardware Manual.
NOTE 1: RS232 ports 2 and 3 are configured through software.
NOTE 2: The address and configuration switches are only read by the controller on
power up.
In the above example the address is 3, RS232 baud is 9600, sub-net baud is 9600 and the
UCC4 is connected to a modem.
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UCC4 seven segment display
Character displayed Meaning
C CLASH
Arcnet is running but another node has this address.
E EMPTY
Arcnet board is present but the network is not connected
or Arcnet network up but no other nodes detected.
O NONE
No Arcnet board is present.
F FULL
All 255 Addresses utilised and the Arcnet is full.
A ARCNET
Arcnet network is up and running .
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UCC4 address and configuration switch exercise
Assume 1 port UCC4
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UCC4 exercise
1. What can we tell about the Arcnet status when the 7 segment display on the UCC4 is
showing:
(A). O ANSWER:______________
(B). E ANSWER:______________
(C). C ANSWER:______________
2. When the red LED on a UCC4 is off what does this tell us?
ANSWER:_________________________________________________________
3. When the green LED on a UCC4 is pulsing rapidly, what do we know about the
controller?
ANSWER:_________________________________________________________
4. When the green LED flashes momentarily, what does this mean?
ANSWER:_________________________________________________________
5. True or false?
A UCC4 requires to be powered down and up again after a change has been made to either
its address switch or configuration switch. True � False �
Section 4
Other components
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Reference
Refer to the following datasheets:
• DI
• Accessories
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UC16 R/L2 RAISE/LOWER RELAY MODULE DATASHEET
MECHANICAL
Size:- 130(w) x 120(l) x 45mm(h)
Enclosure :- Flame retardant injection moulded plastic.
Mounting:- DIN rail
Connectors:-
Inputs : Rising clamp screw terminals
Outputs : Rising clamp screw terminals
Power : Rising clamp Plug-in screw terminals
Quick Connector : 10 way DIL
Weight:- 340g
LABEL
Writing Pad:- 2 Pads allow information about each of the Relay outputs to be recorded. Accepts biro or felt tip pen.
Indicators:- 2 green lights and 2 yellow lights.
ELECTRICAL
Supply Voltage:- 24Vac +/- 20%
Power rating:- 4VA
Indicator:- Red light is on when power is supplied to the relay module.
4 RELAY CONTACTS
10A @ 250Vac or 10A @ 30Vdc for a non-inductive load.
2 INPUTS
Current :- 10mA @ 10Vdc each input
Voltage:- 0 to 10Vdc input only.
Return:- The Return wire is common to all inputs and connects to the G0 wire of the power supply.
FEATURES
• Quick Connect via a 10 way Ribbon Cable (Part No.CC12/CAB, Nominal Length 250mm.) to UC16PG.
• Four links under the terminal cover allow mode selection for each pair of relays.
• Any Combination Of Raise/Lower or Binary Mode outputs possible, e.g. 1 R/L and 1 Binary Mode output.
• 1 UC16 analog output and 1 Binary Mode output is equivalent to 2 UC16 digital outputs and 2 normal relays.
BINARY MODE
Link Position: Links 1 and 2
BINARY MODE TABLE:
Input Voltage (Volts) Red LED(24Vac supply) Relay B Relay A Green LED Yellow LED
Don’t Care off off off off off
0V on off off off off
4V on off on off on
7V on on on on on
10V on on off on off
• Binary mode converts one UC16 analog output to two digital volt-free outputs. Because of the high switching speed it
is possible to skip over states. e.g. It can go from 4V to 10V without activating the 7V state.
Due to Cylon’s policy of continuous improvements, these specifications may be upgraded without notice
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RAISE/LOWER MODE
Link Position: Links 1and 2
Interlock Wiring for Raise/Lower Mode
• In Raise/Lower mode, the interlock wiring shown will only allow one motor to be connected to mains for all input voltages.
RAISE/LOWER TABLE
Input Voltage
(Volts)
Red LED
(24Vac supply)
Relay B Relay A Green LED
(+ direction)
Yellow LED
(- direction)
Contact Status
Don’t Care off off off off off Lower output powered
0V on off off off on Lower output powered
4V or 5V on off on off off No power output to valve
7V or 10V on on on on off Raise output powered
Due to Cylon’s policy of continuous improvements, these specifications may be upgraded without notice
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Exercise
Q. Which of the following are true?
• A UC16 DI digital input module has 32 digital inputs. True � False �
• A UC16 DI can hold a control strategy. True � False �
• A UC16 keypad can interrogate controllers on its own sub-net. True � False �
• A UCC4 keypad can interrogate any controller across the Arcnet. True � False �
• A UC16 R/L 4 provides 4 digital outputs. True � False �
• The hand off auto module can only be internally fitted to a UC16. True � False �
Section 5
Subnetworks
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UCC4 node with UC16 controllers
Up to 8 UC16 controllers [nodes 1-8]
128 I/O points maximum
• • • • • • • •
UCC4 node with UC12 controllers
Up to 63 UC12 controllers [nodes 1-63]
756 I/O points maximum
Reference: System Architecture Datasheet
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UCC4 node with UC16 controllers and UC16DI modules
Up to 8 UC16 controllers [nodes 1-8]
with UC16DI digital input multiplexers [nodes 9-16]
256 I/O points maximum
• • • • • • • •
UCC4 node with UC16 and UC12 controllers and UC16DI modules
Up to 8 UC16 controllers [nodes 1-8]
with UC16DI digital input multiplexers [nodes 9-16]
and 47 UC12 controllers [nodes 17-63]
820 I/O points maximum
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Setting the sub-net 120R terminating resistor
IN
OUT IN
Refer to UC16 Hardware Manual, page 13, for maximum distances
Connecting UCC4s to the Arcnet bus
Refer to UCC4 Hardware Manual, pages 15 to 20.
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2 UCC4 nodes with UC16 controllers
• • • • • • • •
3 UCC4 nodes with UC controllers and a supervisory PC
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Subnetwork exercise
1. What is the maximum number of UC16 controllers on one RS485 network?
(tick the correct answer)
� 32 � 255 � 16 � 8
2. Do Cylon have any illegal or non-usable address numbers?
� Yes � No
3. Sketch a network with the following controllers all mounted in one control panel.
3 UC16DI
6 UC16PG
1 UC16IP
Show all controller address numbers. Is there any further equipment or hardware required?
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4. Sketch a network with the following controllers.
Panel A Panel B Panel C
7 UC16PG 3 UC16PG 1 UC16PG
4 UC16DI 1 UC16DI 1 UC16DI
Note distance between Panel A and B is 200 meters and Panel B and C is 290 meters.
5. The network for example 4 now has 5 floors of VAV terminals installed, each floor
requires 48 UC12VAV controllers.
What is the best method of incorporating this and what other equipment is required?
............................................................................................................................................
............................................................................................................................................
............................................................................................................................................
6. The RS485 network maximum speed is:
(tick correct answer)
� 19K2 Baud � 1 Megabits/sec. � 38K4 Baud
� 9K6 Baud �2.5 Megabits/sec.
Section 6
Arcnet bus’s active
hubs and distances
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Arcnet configurations
To connect 2 UCC4s together with Arcnet:
• • • • • • • • • •
To connect up to 8UCC4s together with Arcnet:
Q. Can I connect more than 8 to this network cable?
A. No. A Coax Active Hub should be used to add extra UCC4s.
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To connect more than 8 UCC4s to a network:
Q. There are 6 unused ports on this Hub. Do they need Arcnet terminating resistors?
A. No.
• • • • • • • • • • • •
Q. Will the network work as normal if the Hub is powered off?
A. No. When the Hub is powered off it no longer terminates the line with 93 Ohms. If there is
a danger of the Hub losing power then an Uninterruptable Power Supply should be used.
• • • • • • • • • • • •
To connect UCC4s which are greater than 1000ft(330M) apart :
Q1. Can You put more UCC4s on these cables without affecting the maximum distance?
A1. Yes up to 8 UCC4s on each cable.
Q2. Is the Hub counted as a node on the network?
A2. No.
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To connect UCC4s which are greater than 660m apart:
Q. If you connect a UCC4 to line #2 do you still get 660m between Hubs?
A. No. If you connect a UCC4 to line#2 then the maximum distance reduces to 330m between
the two Hubs.
To connect up to 8 UCC4s on a line with 2 Hubs:
Q1. Do the Hubs terminate both ends of the line with 93R?
A1. Yes.
Q2. In general, what is the minimum length of RG62 cable I can use between UCC4s?
A2. 1m is the minimum length and CYLON sell this as a standard item off-the-shelf.
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How does the Hub work?
Any data appearing on a port is sent out, buffered, on the other 7 ports.
• • • • • • • • • •
Q. Can I connect a Hub to the middle of a cable:
A. No. This line now has 3x93R across the wires. A solution is shown below:
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Q. Can I connect a long stub at a junction to a line?
A. No, use a hub at the node of the cables.
• • • • • • • • • • •
Q. Can I connect Arcnet in a loop?
A. No. The configuration is either Tree or Star or Bus, not Ring.
• • • • • • • • • • •
Q. What is an Active Link used for?
A. An Active Link can join two Buses together:
Q. What happens if the active Link is powered down?
A. The two Buses work separately.
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Arcnet exercise
Plan the Arcnet cable layout for the site represented in the diagram on the next page.
The first diagram shows the quantity of UCC4s in each location with the distances between
these locations indicated by the red lines.
The second diagram should be used to chart your solution showing where active hubs have
been required.
For the purposes of this exercise; try to minimise the required number of active hubs.
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Section 7
Application of
external devices
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Noise reduction inside the panel
Connect any relay packs, valves, external sensors etc. on a separate star on the 24V side of the
transformer to that supplying UC16 controllers.
Also if possible, connect any UCC4 communication controllers on another separate star.
Where possible keep mains power cables away from sensor, sub-net and Arcnet cables.
These measures will greatly reduce noise on the power supplies into the individual controllers.
Section 8
Cable and installation
recommendations
for Unitron controllers
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Contents
• Thermistor cable
• Analog and digital input cables
• Analog and digital output cables
• UCC4 RS232 cables
• UC16 service port RS232 cable
• Sub-net RS485 cable
• Arcnet media
• Power supply cable
• Safety codes
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Thermistor cable
The resistance of the wire is relevant as the temperature coefficient of the copper wire is
approximately 0. 38 % per degree C. For negligible errors these cables are recommended:
a) up to 50 meters: AGW 20, cross section area (csa) 0.6mm
2, or 3.3 ohms per 100m of
conductor.
b) up to 75 meters: AGW 18, csa 0.9mm
2, or 2 ohms per 100m of conductor.
c) up to 100 meters: AGW 16, csa 1.2mm
2, or 1.5 ohms per 100m of conductor.
• two cores in the cable.
• stranded or solid conductor
• shielded cable with the shield connected to earth at one point i.e. in the panel close to the
controller.
Twisted pair cable is recommended in the following cases:
• when the site has a lot of heavy industrial equipment e.g. large electrical motors.
• when the cable is in the same ducting with mains (220/240 Vac) cabling. Note:
There
should always be at least 12 cm separation between mains wiring and UNITRON controller
cables unless they are separated by metal ducting in which case a minimum distance of 6
cm is recommended.
• when the length of the cable is close to the limits specified above in a), b) or c).
Some recommended cables: Belden 8760, 8762 or equivalents.
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Analog and digital input cables
Up to 200 meters: AWG 24, csa 0.22mm
2
• Shielded two core cable. The shield is connected to earth at one point in the panel close to
the controller.
Recommended cables: Belden
8641, 9501, 9841.
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Analog and digital output cables
Up to 200 meters: AWG 24, csa 0.22mm2
• Shielded
• two core.
Recommended cables: Belden 8641, 9501, 9841.
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UCC4 RS232 cables
Up to 15 meters: AWG 24, csa 0.22mm2.
• three core (for no handshaking).
• shielded.
• total maximum cable capacitance of 2,500pF (conductor to conductor capacitance plus
half the conductor to shield capacitance).
Recommended cables: Belden 9533, 8102 and 9502 (4 cores, one core unused).
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UC16 service port RS232 cable
Up to 4 meters: AWG 24, csa 0.22mm2.
• four core (one handshake line).
• shielded if cable is permanently installed.
Recommended cables: Belden 8102, 9502.
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Sub-net RS485 cable
Up to 15 meters: AWG 24, csa 0.22mm
2 minimum.
• two cores
• unique colour for each one
• shielded
Up to 300 meters: AWG 24, csa 0.22mm
2 minimum.
• two core stranded conductors.
• unique colour per core.
• shielded.
• twisted pair.
• low capacitance.
• a segment of cable running between two controllers should have the shield connected to
earth at one side only. The other end of the shield may be connected to earth via a 10nF,
1KV ceramic plate capacitor to give maximum noise immunity.
Recommended cables: Belden 9501, 8641, 8761.
Up to 1.2Km: AWG 24, csa 0.22mm
2.
• two core stranded conductors (for low impedance at high frequencies).
• unique colour per core.
• twisted pair.
• shielded.
• Polyethylene or Datalene insulated (NOT PVC which gives high capacitance) maximum
cable capacitance is 75pF per meter (conductor to conductor capacitance plus half the
conductor to shield capacitance).
• Characteristic impedance between 100 and 150 ohms.
• a segment of cable running between two controllers should have the shield connected to
earth at one side only. The other end of the shield may be connected to earth via a 10nF,
1KV ceramic plate capacitor to give maximum noise immunity.
Recommended cables: Belden 9841, 9182, 9207, 8102 (one pair unused).
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Arcnet media
The Unitron UCC4 controller has been designed to be connected directly to low cost RG62
A/U Coax cable using standard 75 ohm BNC connectors and T-adapters. It is possible to use
other transmission media if the appropriate interface is used.
These are the available transmission media, off-the-shelf, for standard Arcnet:
• Arcnet coax cable.
• Arcnet fibre optic cable.
It is possible to mix all these media in the one network.
Arcnet coax cable
Different types of coax cable can be used with Arcnet but the furthest distances between nodes
can be achieved with a 90 ohm characteristic impedance cable and 90 ohm terminators. A
maximum distance between UCC4 controllers of 4 miles is then achievable using active hubs
as repeaters.
Up to 305 meters:
This distance can be achieved between two UCC4s on a terminated
length of cable.
Up to eight UCC4s can be placed on this length of cable.
A terminator may be replaced with an active hub to extend the network.
Up to 610 meters: This distance can only be achieved with a star connection between two
active co-axial hubs (that is, no UCC4 controllers are permitted on this
length of cable).
Recommended cables: Belden 9269 (RG62A/U)
Arcnet fibre optic
Puredata Europe supply cost-effective fibre optic hubs which have two Arcnet co-axial
connections and two fibre optic connections. Another hub offered by the same source is a
three fibre optic, one coax hub.
The distances that can be achieved when using these hubs is dependent on the fibre cable
used.
1. 50 Micron cable 7/3.5 = 2.0km max.
2. 62.5 Micron cable 12/4.5 = 2.67km max.
3. 100 Micron cable 16/6.0 = 2.67km max.
We recommend the use of 100 Micron cable for use with these hubs.
Two fibres are required for a fibre optic link:
• One for transmit
• One for receive
These hubs come with either screw or bayonet fittings. When ordering these hubs, specify ST
terminals (bayonet twist and lock). The hubs are mains powered devices.
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Power supply cable
One Unitron controller can draw typically 1.2 Amp pulses of current from the secondary of
the 24 Vac transformer. The secondary should be fused with a slow blow fuse or circuit
breaker, allowing 1Amp per Unitron controller.
Ideally, one 24Vac transformer would be used per panel of controllers. This would ensure
minimum electrical noise due to the resistance of the wire.
Sometimes it is required to power valves and other devices from the same transformer as that
powering the Unitron controllers. In this case, it is recommended to use a star connection at
the secondary of the transformer so that the Unitron controllers are connected on one leg and
the other devices appear on the other leg.
The Go or ground wire on the secondary side should be connected to safety earth
(green/yellow wire) at one point, preferably close to the transformer.
These are the recommended maximum lengths of cable to be used on one leg of a star
connection:
Cable gauge Cross section area
(mm2)
No. of controllers Max. cable length
(metres)
AGW 20 0.6 1
2
8
4
AGW 18 0.9 1
2
3
12
6
2
AGW 16 1.2 1
2
3
4
5
20
10
6.6
5
2.5
AGW 14 2.0 1
2
3
4
5
6
28
14
9.2
7
5.6
2.8
For example, if AWG 18 cable is being used and 8 controllers are to be powered at a distance
of 5 metres from the one transformer, then four star connections would be made to the
secondary of the transformer with 2 controllers each. In this case, it would simplify the wiring
to use AWG 14 cable.
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Safety codes
Most of the cables recommended above are also available in a Plenum version if this is
required by the site safety standards. This type of cable resists flame spread and does not give
off toxic fumes even when exposed to direct flame.
Although it is more expensive than the normal type, in certain cases this type of cable is
exempt from the requirement to run the cable inside metal conduit thus reducing installation
costs.
Section 9
Configuration
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Site Configuration window
Site Description:
This the name of the site that you wish to set up.
Directory Name:
This is the name that will be given to the site directory which is automatically set up in
WN3000V4.
Network? :
As there may be two or more sites set up on the PC this allows you to choose which COM
port the site is connected to.
Remote Site:
If a site is a remote site, accessed via a modem connected into one of the PC's COM ports,
then a telephone number is required as well as the identification string of the UCC4 at the
other end of the modem link.
Number of UCC4s:
This is where the number of UCC4s on the site is entered.
Edit UCC4 Descriptions:
This button brings up another window allowing you to edit the controller names on the site.
These names are then used in the database to identify these controllers.
Refer to WN3000 Software Manual, pages 26 to 38.
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System Configuration window
System Name:
This is the name that will appear on the screen when WN3000V4 is starting up.
Networks:
This box allows the engineer to assign particular COM ports to networks 1 and 2. Network 2
can be connected to a modem or directly to a controller. Here the COM port speed and the
type of controller the PC is connected to is set.
Default site:
This is the site which WN3000V4 will look at as the default when the software is started up.
Minutes idle before Logout:
This is time in minutes after which the user will be signed off if the PC is idle. In order to use
the system again the user would then have to enter their user name and password.
Alarm Scanning Enabled:
This allows the PC to scan for alarms from the network.
Note: When the "Save" button is pressed WN3000V4 will start up again to implement
any changes made. The "Cancel" button will discard any changes.
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User configuration
The User Configuration window is used to set up new users on the system and to change their
levels of access to the system and their passwords, user names etc.
Access to a particular part of the system is determined by whether the relevant tick box in this
window is clicked or not.
For example a particular user may have access to CCView but may not be able to change
anything from there.
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Site directory structure
Below is a summary of what is held in these directories:
C:\wn3000v4\LAN This is the site directory set up automatically from the
configuration application.
LAN\archive Archived data from the site (collected by datalogs).
LAN\dbase The database for the site, with point names etc.
LAN\drawings CCView drawings.
LAN\keypad Keypad programs for the site.
LAN\macros Excel macros for reports.
LAN\strategy Control strategies.
LAN\system Information relevant to the site.
C:\wn3000v4\help Help files for WN3000v4.
C:\wn3000v4\macros Strategy macros for the Engineering Tool.
C:\wn3000v4\system General WN3000v4 information, settings etc.
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Exercise
Set up a site on the PC:
The sites name should be "Training Site" and the directory name should be "TRAIN1".
The site should be set up on Network 1, what does this tell us about the sites location?.
There is one UCC4 and two UC16s on site, the controllers names should be as follows:
UCC4 Number 1 = training case (1)
UC16 Number 1 = first (1-1)
UC16 Number 2 = Keypad (1-2)
Network 1 should be on COM 1 with a baud rate at 9600.
What settings would have to be made on the hardware?
Section 10
The Engineering Tool
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The Engineering Tool
Page references are to the Unitron Engineer’s Guide.
Page
reference
Starting the Engineering Tool:
12 Selecting a target - the reason for this
12 The Off-line window and its features
13 The On-line window and its features
Points and point values:
18 Off-line: Defining a hardware point and its parameters
23 On-line: Downloading a hardware point to a controller
24 Sending set-up and reading the point value
29 Reading all I/O points
31 Changing point values
34 Manually overriding hardware point values
Strategies:
39 Example of a simple strategy
40 Selecting function modules
Editing function modules
41 Marking function modules, for moving, deletion etc.
43 Joining function modules
43 Automatic point selection
44 Manual point selection, when should this be used
49 Saving/opening a strategy
53 Going On-line, logging in to target
53 Wiping memory
54 Downloading a strategy, sending the set-up
57 Testing a strategy
59 Uploading a strategy - when this should be done
62 Editing an uploaded strategy (i.e. a strategy without a drawing)
Exercises: Strategies to be done
Naming objects:
66 Naming points, setpoints
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Reference Globals:
Local globals:
73 How they operate.
74 Point-to-point.
75 Editing local globals, local global dialog boxes.
75 Global number.
76 Point type.
76 Source controller, source point.
77 Destination controller(s), destination point.
77 Default values, service time.
Wide input/output globals, Arcnet globals:
81 How they operate
85 Editing wide output globals, wide output global dialog boxes.
88 Editing wide input globals, wide input global dialog boxes.
Arcnet global numbers.
95 Opening global files, _.cmn files.
93 Saving globals, _.cmn files.
On-line:
96 Deleting globals
97 Downloading local globals to UCC4.
Downloading wide input globals to UCC4.
Downloading wide output globals to UCC4.
100 Sending set-up to UCC4.
102 Viewing state of wide globals, testing wide globals.
Exercise: set up globals.
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Introduction to the Engineering Tool
The Engineering Tool allows us to program Unitron universal controllers to carry out the
particular control function required of it. Graphical programming is used to implement these
control programs which we call strategies.
This means of programming ensures that complicated strategies can be quickly and efficiently
implemented.
This approach also allows ease of maintenance of the program in the future as a graphical
strategy is easy to follow and document.
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Examples of strategies
This simple strategy is used to compare a hardware analog input into the controller with a user
defined analog setpoint in order to switch a hardware digital output.
Here the strategy has been altered by the addition of a timer module, this will allow greater
control over the output by setting the parameters of this module. To set the modules
parameters you must place your mouse pointer over the module and click on the right hand
mouse button.
Below is the resulting dialog box, in this case that an off delay of 20 seconds has been set for
the output.
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Example 1:
Space temperature control of AHU heater battery
1. A temperature sensor located within the controlled space shall position a 3 port diverting
valve on the AHU battery to maintain the desired space temperature setpoint. Assume full
fresh air system, frost thermostat hardwired interlock to fan, fan enabled by BMS software
digital setpoint.
2. The control loop will be enabled when the fan is in the "Run" condition, the valve will be
set to the full bypass position when the fan is enabled.
3. Save this strategy as EXAMP1.STG.
Example 2:
Input calibration
1. On the first UC16 on the sub-net input 1 is a 0-10V signal. Design a small strategy to
rescale this input to match the 0-50 DegC settings shown on the dial.
2. Save this strategy as EXAMP2.STG.
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Example 3:
Weather compensator
Design a weather compensator with a linear characteristic where the flow temperature of a
heating circuit is controlled by outside temperature.
When the outside temperature is -1 DegC the flow temperature should be 80DegC and when
the outside temperature is 20DegC the flow temperature should also be 20DegC. Limit the
flow temperature to 20 to 80 DegC.
0
10
20
30
40
50
60
70
80
-1 DegC 20 DegC
Example 4:
Weekly duty changeover
Two pumps are to be operated under weekly duty changeover. If either should trip during its
part of the cycle the other pump will take over.
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Globals exercise
Download the completed strategies, Examp1.STG and Examp2.STG, to the
relevant controllers and set up a local global which will utilise the result of the
Examp2.STG as the setpoint in Examp1.STG.
Save this global as Exer1.CMN.
Section 11
Time schedules
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UC16 time schedule
Refer to UC16 Programming Manual, page 105.
The UC16 time schedule is for use on stand alone controllers and can be adjusted by a keypad
or by a PC connected to the UC16.
There are two start and stop times available in each time schedule and these can be selected
for the entire week or for individual days.
In the above case the schedule has been arranged to operate on Mondays only with one start
and stop time; 8:30am to 5:30pm.
This means that the digital True Output point, 31, will be set during these times.
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UCC4 Schedule Planner
Note: In order to edit a UCC4 time schedule, you must first define it in the Engineering
Tool.
Opening a UCC4 Time Schedule
To use the Schedule Planner you must first select which schedule you wish to edit.
Having done this select Time Schedule, this will give the following window:
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Downloading the edited schedule to the UCC4
When the schedule has been downloaded it is automatically saved on the PC.
In order to test that the schedule is operating, it can be viewed in the Engineering Tool when
on-line.
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Exercise
Implement the following simple strategy in the first UC16:
Digital output (point 16) will be switched on when either a digital input (point 8) or a UCC4
time schedule (schedule no.1) is enabled. The schedule should be sent to a digital setpoint in
the strategy by means of a local global.
Save this strategy as "Timeschd.stg"
Define schedule no.1 and set up the local global.
Set the on-off times for this schedule as Monday to Sunday, 8:00am to 6:20pm, then
download this schedule.
Test the schedule in the Engineering Tool.
What happens if the on-off time for today has already gone? Download times to test this.
Section 12
Alarm text
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UCC4 alarm text
Refer to the UC16 Programming Manual, page 128 and the Engineer’s Guide, page 129.
In order to send Alarm string text to the UCC4 we must use the UCC4 Configuration program
as shown below.
This will display the following window:
From here the alarm strings required can be written and downloaded to the UCC4. When the
alarm occurs in the UC16 the UCC4 will send these alarm strings to the PC.
In order for Alarm scanning to be enabled on the PC it will have to be set up in the WN3000
Configuration.
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The Alarm window that will appear on the PC after an alarm has occurred looks like:
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Exercise:
Alter your previously written strategy "Timeschd.stg" by adding an alarm module, this should
go into alarm condition when the digital input (point 8) is closed.
The Alarm Priority should be 1 and the associated text should read:
"Boiler Trip, Plant room A" when the alarm is present
and
"Boiler Normal, Plant room A" when the alarm has ended.
Section 13
Datalogs
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Datalogs
Refer to the UC16 Programming Manual, page 122 and the Engineer’s Guide, page 131.
From the Datalogs program we can now look at the datalog in the controller in text or graph
form by selecting Get a Datalog.
This results in the following window which allows you to choose which datalog you require
and how you wish to view it:
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Exercise
Download a strategy to the second UC16 which will monitor the room temperature given by
the PT1000 sensor connected to input point 1 by means of a datalog with a 2 second sampling
period.
This datalog should be called "Room Temp DL"
Use the datalogs program to view this datalog in text and graph format.
Section 14
CCView and
CCDraw
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Reference
• CCView, page 61, WN3000 Version 4 Software Manual.
• CCDraw, page 39, WN3000 Version 4 Software Manual.
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CCDraw exercise
1. Paste the Bitmap provided from Windows Paintbrush into CCDraw.
Set up a Dynamic point to display the Room temperature from the strategy on the screen.
2. The strategy in the controller also contains a setpoint, alter the drawing so that the setpoint
can be displayed and changed from CCView.
3. The room temperature input to the controller is datalogged, demonstrate how this datalog
may also be accessed through CCView.
4. A door is required on the screen to access a drawing called "Demo1.DRW", implement
this door with a suitable description.