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PLC INTERFACE UNIT
CIT-200
INSTRUCTION MANUAL
PREFACE
Thank you for the purchase of our PLC Interface Unit CIT-200 .
This manual contains instructions for the mounting, functions, operations and notes when operating the
CIT-200 .
For confirmation of the model and specifications, please read this manual carefully before starting operation.
To prevent accidents arising from the misuse of this unit, please ensure the operator using it
receives this manual.
Notes
• This instrument should be used according to the specifications described in the manual.
If it is not used according to the specifications, it may malfunction or cause fire.
• Be sure to follow the warnings, cautions and notices. If they are not followed, serious injury or malfunction may occur.
• Do not apply a commercial power source to the sensor which is connected to the input terminal nor allow the power source to come into contact with the sensor.
• Specifications of the CIT-200 and the contents of this instruction manual are subject to change without
notice.
• Care has been taken to assure that the contents of this instruction manual are correct, but if there are any doubts, mistakes or questions, please inform us or the shop you purchased the unit.
• Any unauthorized transfer or copying of this document, in part or in whole, is prohibited.
• Shinko Technos Co., Ltd. is not liable for any damages or secondary damages incurred as a result of using this manual, including any indirect damages.
Safety precautions
(Be sure to read these precautions before using our products.)
The safety precautions are classified into two categories: “Warning” and “Caution”.
Depending on circumstances, procedures indicated by Caution may be linked to serious results and so be sure to follow the directions for usage.
Warning
Procedures which may lead to dangerous conditions and cause death or serious injury, if not carried out properly.
Caution
Procedures which may lead to dangerous conditions and cause superficial to medium injury or physical damage or may degrade or damage the product, if not carried out properly.
2
1. Installation precautions
Warning
Turn the power supplied to the instrument OFF before mounting.
Working or touching the terminal with the power switched ON may result in severe injury or death due to Electric Shock.
Caution
This instrument is intended to be used under the following environmental conditions (IEC61010-1):
Mount the unit in a place with:
(1) A minimum of dust, and an absence of corrosive gases
(2) No flammable, explosive gases
(3) No mechanical vibrations or shocks
(4) No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to122 ) that does not change rapidly
(5) An ambient non-condensing humidity of 35 to 85%RH
(6) No large capacity electromagnetic switches or cables through which large current is flowing
(7) No water, oil or chemicals or where the vapors of these substances can come into direct contact with the unit
Note: Although the case of this instrument is made of flame resisting resin, do not install this instrument near flammable material.
Avoid setting this instrument directly on flammable material.
3
2. Wiring precautions
Warning
Turn the power supplied to the instrument OFF before wiring or checking.
Working or touching the terminal with the power switched ON may result in severe injury or death due to Electric Shock.
Caution
• Do not leave wire chips in the instrument, because they could cause fire, malfunction or trouble.
• Use the solderless terminal with an insulation sleeve that fits to the M3 screw when wiring the CIT-200.
• The terminal block of the CIT-200 is designed to be wired from the left side. The lead wire must be inserted from the left side of the terminal, and fastened with the terminal screw.
• Tighten the terminal screw with the specified torque.
If excessive force is applied to the screw when tightening, the screw or case may be damaged.
3. Running and maintenance precautions
Warning
• Do not touch live terminals. It may cause electric shock or problems in operation.
• Turn the power supply to the instrument OFF before cleaning the module or retightening the screws.
Doing this work while the power is ON may result in severe injury or death due to electric shock.
4
CONTENTS
1. Overview
1.1 Overview of the CIT-200 ------------------------------------------------------------------------------------ 6
1.2 Units and structure when applying the CIT-200 to the C series ---------------------------------- 6
1.3 System configuration ---------------------------------------------------------------------------------------- 7
1.4 Parameter exchange ----------------------------------------------------------------------------------------- 7
2. Model name
2.1 Model name ---------------------------------------------------------------------------------------------------- 8
2.2 How to read the model name label ----------------------------------------------------------------------- 8
3. Name and functions of the sections
--------------------------------------------------- 8
4. Setup
------------------------------------------------------------------------------------------------------------ 9
5. Mounting
5.1 Site selection-------------------------------------------------------------------------------------------------- 11
5.2 External dimensions ---------------------------------------------------------------------------------------- 11
5.3 DIN rail mounting and removal --------------------------------------------------------------------------- 11
6. Wiring connection
6.1 Terminal arrangement -------------------------------------------------------------------------------------- 12
6.2 Communication interface ---------------------------------------------------------------------------------- 12
6.3 Wiring connection example ------------------------------------------------------------------------------- 13
6.3.1 Wiring between the CIT-200 and Mitsubishi Calculator link unit, Serial communication unit ---------------------------------------------------------------------------------- 14
6.3.2 Wiring between the CIT-200 and Mitsubishi Micro PLC ------------------------------------ 14
6.3.3 Wiring between the CIT-200 and Omron Host link unit ------------------------------------- 15
6.3.4 Wiring between the CIT-200 and Fuji Interface module ------------------------------------- 16
7. Communication between the CIT-200 and Mitsubishi PLC
7.1 Setup
7.1.1 Setup of Calculator link unit (AJ71UC24) ------------------------------------------------------- 17
7.1.2 Setup of Calculator link unit (A1SJ71UC24-R4) ---------------------------------------------- 18
7.1.3 Setup of Micro PLC (FX2N-XXMR) -------------------------------------------------------------- 18
7.1.4 Setup of Serial communication unit (QJ71C24) ----------------------------------------------- 19
7.2 Initial setting
7.2.1 Initial setting of Calculator link unit (AJ71UC24, A1SJ71UC24-R4) --------------------- 20
7.2.2 Initial setting of Micro PLC (FX2N-XXMR) ----------------------------------------------------- 21
7.2.3 Initial setting of Serial communication unit (QJ71C24) -------------------------------------- 22
7.3 Communication details-------------------------------------------------------------------------------------- 23
8. Communication between the CIT-200 and Omron PLC
8.1 Setup of Host link unit (C200H-LK202-V1) ----------------------------------------------------------- 34
8.2 Initial setting of Host link unit (C200H-LK202-V1) -------------------------------------------------- 34
8.3 Communication details ------------------------------------------------------------------------------------- 35
9. Communication between the CIT-200 and Fuji PLC
9.1 Setup of Interface module (NC1L-RS4) --------------------------------------------------------------- 41
9.2 Initial setting of Interface module (NC1L-RS4) ------------------------------------------------------ 42
9.3 Communication details ------------------------------------------------------------------------------------ 42
10. Specifications
10.1 Standard specifications ---------------------------------------------------------------------------------- 48
10.2 Optional specifications ----------------------------------------------------------------------------------- 49
11. Troubleshooting
-----------------------------------------------------------------------------------50
5
1. Overview
1.1 Overview of the CIT-200
Communication between maximum 16 blocks of C series and PLC can be carried out via PLC interface unit CIT-200.
The CIT-200 reads and writes the PV, SV or other data from/to the memory in the PLC via a host link unit.
Therefore PLC only needs the program for reading and writing the data in the memory, and this will reduce the communication processing of the PLC.
1.2 Units and structure when applying the CIT-200 to the C series
(1) PLC interface unit: CIT-200
The CIT-200 makes it possible to communicate between multiple blocks (maximum 16 blocks) of C series and the PLC.
(2) 2-Ch temperature control unit: CCT-235-2 /
2-Ch temperature control unit
Two channels should have the same input and same output.
(3) Heating/Cooling temperature control unit: CCT-235- / , D
Temperature control unit
Heating/Cooling control is possible with 1-Ch input.
(4) Power source host link unit: CPT-20A
Link unit to supply the power to the CCT-235 and to communicate with the host unit.
(5) Base unit
CBT-210: Base unit for mounting the CPT-20A and CCT-235 unit.
One CPT-20A is required to 1 base unit.
Maximum 10 units of CCT-235 can be mounted.
CBT-205: Base unit for mounting the CPT-20A and CCT-235 unit.
One CPT-20A is required to 1 base unit.
Maximum 5 units of CCT-235 can be mounted.
(6) Communication cable: CPP
Exclusive communication cable to connect between the CIT-200 and CPT-20A or between CPT-20A units (for block extension)
6
1.3 System configuration
When using the CBT-210
CPU unit
PLC
RS-232C or
RS-422A
Link unit
CIT-200
RS-422A
RS-422A
RS-422A
(Fig. 1.3-1)
When using the CBT-205
CPU unit
RS-232C or
RS-422A
CIT-200
RS-422A
PLC
RS-422A
Link unit
CPT-20A
CPT-20A
CPT-20A
RS-422A
(Fig. 1.3-2)
1.4 Parameter exchange
Parameter exchange is shown below.
CPT-20A
The PLC sets and monitors the C series.
PLC
RS-232C
RS-422A
The CIT-200 receives the data from the data memory in the PLC,
CIT-200 and sends the command data to the CPT-20A.
The CIT-200 receives the response data from the CPT-20A,
The CPT-20A receives the sending data from the CIT-200 and
The CPT-20A receives the response data from the CCT-235 and sends it to the CIT-200.
The CCT-235 receives the sending data from the CPT-20A, and
CCT-235 performs the control. The CCT-235 sends the control data to the
CPT-20A.
7
2. Model name
2.1 Model name
CIT-200: PLC interface unit
2.2 How to read the model name label
Warning
Turn the power supplied to the instrument OFF before confirming the model name label.
Working or touching the terminal with the power switched ON may result in severe injury or death due to Electric Shock.
Model name labels are attached to the case and inner assembly.
[Example]
CIT-200
TC
No. x x x x x x
Model name: CIT-200
Option: Terminal cover
Instrument number (indicated only on the inner assembly.)
3. Name and functions of the sections
TX/RX (1)
(4)
POWER
(2)
(3)
(5)
(6)
Terminal block Terminal block for power source for communication
(Fig. 3-1)
Internal assembly
(1) TX/RX: Communication indicator
When communicating between the CIT-200 and PLC, a yellow LED blinks.
(2) POWER: Instrument power indicator
When the power supply to the instrument is turned ON, a green LED lights.
(3) Modular jack
Connects the CIT-200 to CPT-20A.
(4) Rotary switch for selecting a PLC type
Selects a PLC type to communicate with the CIT-200.
(5) DIP switch for communication setup
Selects the communication setup between the CIT-200 and PLC.
(6) DIP switch for selecting communication line
Selects the communication line (RS-422A or RS-232C) between the CIT-200 and PLC.
8
4. Setup
Warning
Turn the power supplied to the instrument OFF before setup.
Working or touching the terminal with the power switched ON may result in severe injury or death due to Electric Shock.
Notice
Set up each switch of CIT-200 before the power supply to the unit is turned ON.
Set the same communication speed to both CIT-200 and the PLC, otherwise communication is impossible.
Set the communication speed of the CPT-20A to 19200bps.
Switch setting
Using a small screwdriver (flat bladed or Phillips) or tweezers, set up the Rotary switch and
DIP switch of the CIT-200. See (Fig. 4-1).
*(1)
F
1
2
3 4 5
6
7
E
D
C
B
A
9
TX/
R
*(2)
1
2
3
4
5
6
7
8
O
N
O
N
Terminal block for Power source
Terminal block
for communication
(Fig. 4-1)
*(3)
Internal assembly
*(1) Rotary switch for selecting a PLC type
(Rotary switch number is represented by the hexadecimal figures.)
Do not set the Rotary switch number [6 to F] even if its setting range is from 0 to F.
Rotary
SW No.
PLC and
its manufacturer
Communication command
0
1
Mitsubishi MELSEC ACPU common command
“WR, WW” compatible
Mitsubishi MELSEC ACPU common command
“WR, WW” compatible
2 Omron C200H
3 Fuji
RD/WR command
MICREX-F70.
4
5
6 to F
Mitsubishi MELSEC ACPU common command
“QR, QW” compatible
Mitsubishi MELSEC ACPU common command
“QR, QW” compatible
9
Communication protocol
Using memory
Host link unit protocol
(Protocol 4)
Host link unit protocol
(Protocol 4)
R register
D register
Host link unit protocol DM
Host link unit protocol SI, W30
Host link unit protocol
(Protocol 4)
Host link unit protocol
(Protocol 4)
R register
D register
PLC manufacturer
Mitsubishi Electric Corp.
Omron Corp.
Fuji Electric Co., Ltd.
Model name
AJ71UC24, A1SJ71UC24-R2/R4, QJ71C24
LK201-V1, LK202-V1
NC1L-RS2, NC1L-RS4
*(2) DIP switch for communication setup (Default value: OFF for all switches)
Select a switch to match with the specification of the PLC to be used.
Turn the DIP switch number [6 to 8] to OFF.
DIP SW No. Contents ON OFF
2 Data length
3 Parity
4 Parity
5 Stop bit
7 bits 8 bits
Odd Even
2 bits 1 bit
6 to 8
*(3) DIP switch for selecting communication line (Default value: RS-422A)
(Do not use the switch combination other than the below)
DIP switch
No.1
DIP switch
No.2
Communication line
ON OFF RS-422A
OFF ON RS-232C
The above switch setup items (1), (2) and (3) will be effective when the power supply is turned on
(If any items are changed after the power is turned on, they will not be effective)
Setup of the CPT-20A
Set the DIP switch to as shown below except for No.2.
DIP SW No. Contents ON OFF
1 Communication 19,200bps
3 to 6
9,600bps
* Terminator Terminator Not connected
Communication protocol Shinko protocol
Note
* When multiple CPT-20A units are connected, the last CPT-20A should be set to “Terminator
Connected”, and set other CPT-20A units to “Terminator Not connected”.
For more details, refer to Chapter “4. Setup” in the instruction manual for C series (pages 10 to 12).
Setup of each PLC
As to the PLC setup, refer to the Instruction manual for each PLC or the following.
• For setup of Mitsubishi PLC, see “7.1 Setup” (pp.17-19).
• For setup of Omron PLC, see “8.1 Setup” (p.34).
• For setup of Fuji PLC, see “9.1 Setup” (p.41).
10
5. Mounting
5.1 Site selection
This instrument is intended to be used under the following environmental conditions (IEC61010-1):
Overvoltage category , Pollution degree 2
Mount the unit in a place with:
(1) A minimum of dust, and an absence of corrosive gases
(2) No flammable, explosive gases
(3) No mechanical vibrations or shocks
(4) No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to122 ) that does not change rapidly
(5) An ambient non-condensing humidity of 35 to 85%RH
(6) No large capacity electromagnetic switches or cables through which large current is flowing
(7) No water, oil or chemicals or where the vapors of these substances can come into direct contact with the unit
5.2 External dimensions
2 48 94 6 4
DIN rail
( Fig. 5.2-1)
5.3 DIN rail mounting and removal.
For the DIN rail mounting and removal, refer to “5.3 Mounting” in the Instruction manual for C series.
11
6. Wiring connection
6.1 Terminal arrangement
Warning
Turn the power supply to the instrument OFF before wiring.
Working with the power switched ON may result in severe injury or death due to Electric Shock.
Moreover, the instrument must be grounded before the power supply to the instrument
is turned on.
100 to 240V AC
50/60Hz
Ground
CPT-20A
1
2
3
4
Terminal block for power source
TX/RX
POWER
5
6
7
8
9
10
11
12
13
14
Communication cable (CPP)
100 to 240V AC
50/60Hz
Ground
Terminal block for digital input/output
CIT-200
1
2
3
4
Terminal block for power source
TX/RX
POWER
5
6
7
8
9
10
11
12
13
14
TX
RX
COM
TXA(-)
TXB(+)
RXA(-)
RXB(+)
COM
RS-232C
To the PLC
RS-422A
Terminal block
for communication
(Fig. 6.1-1)
6.2 Communication interface
(1) RS-232C
Signal name
Sending data
Receiving data
Ground for the signal, or common return cable
Cable length: Maximum 10m
(2) RS-422A
Signal name
Code
TX
RX
Signal direction
Output
Input
Terminal No.
5
6
COM 7
Sending data
Receiving data
Code
TXA (-)
TXB (+)
RXA (-)
RXB (+)
Output
Input
8
9
10
11
Built-in
Ground for the signal, or common return cable
Cable length: Maximum 1km
COM 12
12
6.3 Wiring connection example
Notices
Use the recommended cable to connect the PLC and CIT-200.
Use the recommended D sub connector to connect the PLC and CIT-200.
Use a thick wire (1.25 to 2.0mm
2 ) as a grounding cable.
When the communication line is RS-422A, mount a terminator referring to the Instruction manual for each PLC.
Solderless terminal
Use a solderless terminal with an isolation sleeve that fits to the M3 screw as shown below.
3.2mm
3.2mm
Solderless terminal
Manufacturer
Y type
Round type
(Fig. 6.3-1)
Model name
Nichifu Terminal Industries CO., LTD. 1.25-Y3
Japan Solderless Terminal MFG CO., LTD. VD1.25-B3A
Nichifu Terminal Industries CO., LTD. 1.25-3
Japan Solderless Terminal MFG CO., LTD. V1.25-3
Fastening torque
0.6N・m
Max. 1.0N・m
Recommended cable
OTSC-2PVB-7/0.32TA ONAMBA CO., LTD.
OTSC-3PVB-7/0.32TA ONAMBA CO., LTD.
RS-232C
RS-422A
Recommended D sub connector
Model Manufacturer
DE-9SF-N
DE-C1-J6
DB-25PFT-N
DB-C2-J9
Name
Japan Aviation Electronics Ind., Ltd. D sub 9-pin ( ) connector
Japan Aviation Electronics Ind., Ltd.
D sub 9-pin connector cover
Japan Aviation Electronics Ind., Ltd. D sub 25-pin ( ) connector
Japan Aviation Electronics Ind., Ltd.
D sub 25-pin connector cover
13
6.3.1 Wiring between the CIT-200 and Mitsubishi Calculator link unit, Serial communication unit
• RS-232C (AJ71UC24, A1SJ71UC24-R2, QJ71C24))
Cable length: Maximum 10m
CIT-200
TX
RX
COM
GND
5
6
7
4
Twisted shield wire
Calculator link unit
(AJ71UC24)
SD
RD
SG
2
3
7
D sub 25-pin(凸)
CIT-200
TX
RX
COM
GND
5
6
7
4
(Fig. 6.3.1-1)
• RS-422A (AJ71UC24, A1SJ71UC24-R4, QJ71C24)
Cable length: Maximum 1km
CIT-200
TXA (-)
TXB (+)
8
9
Calculator link unit
SDA
SDB
RXA (-)
RXB (+)
10
11
RDA
RDB
Twisted shield wire
Calculator link unit
(A1SJ71UC24-R2)
Serial communication unit
(QJ71C24)
RD
SD
SG
2
3
5
D sub 9-pin(凸)
COM 12
GND 4
Twisted shield wire
(Fig. 6.3.1-2)
SG
6.3.2 Wiring between the CIT-200 and Mitsubishi Micro PLC
• RS-232C (FX2N-XXMR)
Cable length: Maximum 10m
Micro PLC
CIT-200
(FX2N-XXMR)
TX
RX
COM
GND
5
6
7
4
Twisted shield wire
RD
SD
SG
2
3
5
D sub 9-pin (凸)
(Fig. 6.3.2-1)
14
• RS-422A (FX2N-XXMR)
Cable length: Maximum 1km
CIT-200
TXA (-)
TXB (+)
RXA (-)
RXB (+)
COM
8
9
10
11
12
Micro PLC
(FX2N-XXMR)
RDA
RDB
SDA
SDB
SG
GND 4 Twisted shield wire
(Fig. 6.3.2-2)
6.3.3 Wiring between the CIT-200 and Omron Host link unit
• RS-232C (C200H-LK201-V1)
Cable length: Maximum 10m
Host link unit
CIT-200 (C200H-LK201-V1)
TX
RX
COM
5
6
7
SD
RD
SG
2
3
7
GND
4
Twisted shield wire
(Fig. 6.3.3-1)
• RS-422A (C200H-LK202-V1)
Cable length: Maximum 1km
D sub 25-pin (凸)
Host link unit
CIT-200 (C200H-LK202-V1)
TXA (-) 8 RDB
1
TXB (+) 9 RDA
6
RXA (-) 10 SDB
5
RXB (+) 11 SDA
9
COM 12 SG
3
GND 4
Twisted shield wire
D sub 9-pin (凸)
(Fig. 6.3.3-2)
15
6.3.4 Wiring between the CIT-200 and Fuji Interface module
• RS-232C (NC1L-RS2)
Cable length: Maximum 10m
CIT-200
TX 5
RX 6
COM 7
GND 4
Twisted shield wire
Interface module
(Fig. 6.3.4-1)
(NC1L-RS2)
SD
RD
SG
2
3
7
D sub 25-pin (凸)
• RS-422A (NC1L-RS4)
Cable length: Maximum 1km
CIT-200
TXA (-)
TXB (+)
RXA (-)
RXB (+)
8
9
10
11
COM
GND
12
4
Twisted shield wire
(Fig. 6.3.4-2)
Interface module
(NC1L-RS4)
RDA
RDB
SDA
SDB
SG
16
7. Communication between the CIT-200 and
Mitsubishi PLC
7.1 Setup
7.1.1 Setup of Calculator link unit (AJ71UC24)
MODE
STATION NO.
× 10
STATION NO.
× 1
(1)
(2)
(3)
SW11
ON
See (Table 7.1.1-1).
SW13
SW14
Set the items except for the baud rate to .
SW15
SW16
SW17
(4)
SW18
ON
SW21
SW22
SW23
(1) Sets the transmission control procedure (protocol) and control procedure of RS-422A or RS-232C.
Set to 8 (Protocol 4).
(2) Sets the instrument number of the double digit (x10).
Set the number to 0.
(3) Sets the instrument number of the single digit (x1).
Set the number to 0.
(4) Sets the transmission specifications.
SW24
(Table 7.1.1-1)
Setting switch Setting item Setting switch ON Setting switch OFF
SW11
SW12
Main channel setting
Data bit setting
RS-422A
8 bits
RS-232C
7 bits
Baud 9600bps 19200bps
SW15
SW17
SW18
Even/Odd parity setting
Stop bit setting
SW21 Checksum
SW22 Writing during RUN
SW23
Calculator link/multi-drop link selection
ON ON
Yes No
Even
2 bits
Yes
Possible
Odd
1 bit
No
Impossible
Calculator link Multi-drop link
17
7.1.2 Setup of Calculator link unit (A1SJ71UC24-R4)
(4)
SW01
ON
SW02
SW03
SW04
SW05
ON
SW06
SW07
SW08
SW09
STATION NO.
x 10 x 1
(1)
(2)
(1) Sets the instrument number of the double digit (x10).
Set the number to 0.
(2) Sets the instrument number of the single digit (x1).
Set the number to 0.
(3) Sets the transmission control procedure (protocol) and control procedure of RS-422A or RS-232C.
Set to 8 (Protocol 4).
(4) Sets the transmission specifications.
See (Table 7.1.2-1).
Set the items except for the baud rate to .
SW10
SW11
MODE
(3)
SW12
(Fig.7.1.2-1)
(Table 7.1.2-1)
Setting switch Setting item Setting switch ON Setting switch OFF
SW02
Calculator link/Multi-drop link selection
Calculator link Multi-drop link
SW04 Writing during RUN
SW05
Baud
Possible
9600bps
ON
Impossible
19200bps
OFF
SW06 Transmission speed setting
SW07
SW08 Data bit setting
SW10
SW11
Even/Odd parity setting
Stop bit setting setting
OFF
ON
8 bits
Yes
Even
2 bits
Yes
ON
ON
7 bits
No
Odd
1 bit
No
7.1.3 Setup of Micro PLC (FX2N-XXMR)
In the program, set up communication of no procedure, communication of calculator link
(communication format D8120) which uses designated protocol and the station number (0).
b0
b1
b2
b3
b4
b5
b6
b7
b8
b9
b10
b11
b12
b13
b14
b15
• Specification of communication format D8120 (Set the items to except for the baud rate.)
(Table 7.1.3-1)
Bit No.
(bps)
Header
Name
Data length
Parity
Stop bit
Baud rate
Terminator
Control cable
Not available
Checksum
Protocol
Control procedure
Contents
0 (Bit OFF) 1 (Bit ON)
7 bits
b2, b1
( 1, 1): Even
1 bit
b7, b6, b5, b4
( 1, 0, 0, 0): 9600bps
( 1, 0, 0, 1): 19200bps
8 bits
2 bits
Must be specified
No
Not connected
b11, b10
Yes
Connected
( 0, 0): RS-485 interface
Not applied
Not used
Protocol 1
Applied
Used
Protocol 4
18
Note hCommunication format is used to decide the setting of the above (Table 7.1.3-1) and
can be set by programming to the special data memory (D8120) of the PLC. hWhen the setting is changed, be sure to turn the power supply to the PLC OFF and then
ON again, otherwise the changed data will not be effective.
How to set communication format (D8120)
When setting the contents of (Table 7.1.3-1), set the program to the special data memory (D8120) of the PLC as follows.
• When the baud rate is 9600bps
b15 b0
• When the baud rate is 19200bps b15 b0
D8120 = [1110 0000 1000 0110 ]
E 0 8 6
M8002
MOV HE086 D8120
(Fig. 7.1.3-1)
D8120 = [1110 0000 1001 0110 ]
E 0 9 6
M8002
MOV HE096 D8120
(Fig. 7.1.3-2) n How to set the station number (D8121)
Be sure to set the station number to “0”.
Set the program to the special data memory (D8121) of the PLC as follows.
M8002
MOV H0000 D8121
(Fig. 7.1.3-3)
7.1.4 Setup of Serial communication unit (QJ71C24)
Install the GX Developer to a host computer, perform settings such as communication speed, transmission specification and communication protocol, then set up the unit with PC writing function.
• Setting from the GX Developer:
(1) I/O allocation setting
Set the following items.
• Type: “Intelligent”
• Model name: QJ71C24
• Number of points: 32
(2) Switch setting for I/O unit, Intelligent function unit
Set the following items.
• Transmission setting (Action setting: Independent, Data bit: 7, Parity: Yes (Even),
Stop bit: 1, Checksum code: Yes, Writing during RUN: Allowed,
Setting change: Allowed)
• Communication speed setting (9600bps or 19200bps)
• Communication protocol setting (Protocol 4)
For the setting method, refer to the User’s manual for Serial communication unit (Basic).
19
7.2. Initial setting
7.2.1 Initial setting of Calculator link unit (AJ71UC24, A1SJ71UC24-R4)
When communicating with the C series, set the address from the PLC to store each setting item data of the C series after the power supply to the PLC is turned on. Communication is impossible if the addresses for storing each setting item data of the C series are not set.
Set the program referring to the sample program (Fig. 7.2.1-1) below, and execute the first scan of it.
Note :
Be sure to leave file memory addresses (R0000 to R0002) of the PLC vacant since the
addresses (R0000 to R0002) are used to set the top address for the temperature control.
• Sample program
M9038
MOV K1000 R0000
MOV H000A R1000
MOV HAAAA R1001
MOV HAAAA R1002
MOV H00AA R1003
MOV H0000 R1004
MOV HFFFF R1005
MOV HFFFF R1006
MOV H007F R1007
MOV H1234 R0001
MOV H5678 R0002
END
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
Explanation of the sample program
M9038 is a special relay which turns only 1 scan ON after running.
(1) To the R0000 address, set the top address (R1000) in the memory which is used for the communication with the CIT-200.
(2) To the address R1000, set the number of CPT-20A (10 units) connected to the CIT-200.
(3) To the address R1001 to R1004, set the number of CCT-235 (10 units) connected to the CPT-20A.
(4) To the address R1005, set the communication item Used/Not used selection flag.
See page 24 for the communication item.
(5) To the address R1006, set the communication item Used/Not used selection flag.
See page 24 for the communication item.
(6) To the address R1007, set the communication item Used/Not used selection flag.
See page 25 for the communication item.
(7) To the address R0001, set the fixed value 4660 (decimal).
(8) To the address R0002, set the fixed value 22136 (decimal).
20
7.2.2 Initial setting of Micro PLC (FX2N-XXMR)
When communicating with the C series, set the addresses from the PLC to store the setting item data of the C series after the power supply to the PLC is turned on.
Communication is impossible if the addresses for storing the setting item data of the C series are not set.
Therefore, set the program referring to the sample program (Fig.7.2.2-1) below, and execute only the first scan of it.
Note
Be sure to leave the file memory addresses (D0000 to D0002) of the PLC vacant when setting a program since the addresses (D0000 to D0002) are used for the top address for the temperature control.
• Sample program
M8002
MOV K1000 D0000
MOV H000A D1000
MOV HAAAA D1001
MOV HAAAA D1002
MOV H00AA D1003
MOV H0000 D1004
MOV HFFFF D1005
MOV HFFFF D1006
MOV H007F D1007
MOV H1234 D0001
MOV H5678 D0002
MOV HE086 D8120
MOV H0000 D8121
END
7.2.2-1)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
Explanation of the sample program
M8002 is a special relay which turns only 1 scan ON after running.
(1) To the D0000 address, set the top address (D1000) in the memory area which is used for the communication with the CIT-200.
(2) To the address D1000, set the number of CPT-20A (10 units) connected to the CIT-200.
(3) To the address D1001 to D1004, set the number of CCT-235 (10 units) connected to the CPT-20A.
(4) To the address D1005, set the communication item Used/Not used selection flag.
See page 29 for the communication item.
(5) To the address D1006, set the communication item Used/Not used selection flag.
See page 29 for the communication item.
(6) To the address D1007, set the communication item Used/Not used selection flag.
See page 29 for the communication item.
(7) To the address D0001, set the fixed value 4660 (decimal).
(8) To the address D0002, set the fixed value 22136 (decimal).
(9) To the address D8120, set the communication format.
(10) To the address D8121, set the station number.
For more information, refer to the User’s manual (FX communication RS232C, RS485) for Mitsubishi
Micro PLC (MELSEC-F).
21
7.2.3 Initial setting of Serial communication unit (QJ71C24)
When communicating with the C series, set the address from the PLC to store each setting item data of the C series after the power supply to the PLC is turned on. Communication is impossible if the addresses for storing each setting item data of the C series are not set.
Set the program referring to the sample program (Fig. 7.2.3-1) below, and execute the first scan of it.
Note :
Be sure to leave file memory addresses (R0000 to R0002) of the PLC vacant since the
addresses (R0000 to R0002) are used to set the top address for the temperature control.
• Sample program (when using D register)
SM403
MOV K1000 D0000
MOV H000A D1000
MOV HAAAA D1001
(1)
(2)
MOV HAAAA D1002
MOV H00AA D1003
MOV H0000 D1004
MOV HFFFF D1005
MOV HFFFF D1006
MOV H007F D1007
MOV H1234 D0001
MOV H5678 D0002
(3)
(4)
(5)
(6)
(7)
(8)
END
(7.2.3-1)
Explanation of the sample program
SM403 is a special relay which turns only 1 scan ON after running.
(1) To the D0000 address, set the top address (D1000) in the memory area which is used for the communication with the CIT-200.
(2) To the address D1000, set the number of CPT-20A (10 units) connected to the CIT-200.
(3) To the address D1001 to D1004, set the number of CCT-235 (10 units) connected to the CPT-20A.
(4) To the address D1005, set the communication item Used/Not used selection flag.
See page 29 for the communication item.
(5) To the address D1006, set the communication item Used/Not used selection flag.
See page 29 for the communication item.
(6) To the address D1007, set the communication item Used/Not used selection flag.
See page 29 for the communication item.
(7) To the address D0001, set the fixed value 4660 (decimal).
(8) To the address D0002, set the fixed value 22136 (decimal).
22
7.3 Communication details
How to communicate between the CIT-200 and PLC
After the power to the PLC is turned on, the PLC sets address 0 in the memory to top address to communicate with the CIT, and sets the number of CPT-20A connected to the CIT-200, the number of the CCT-235 connected to the CPT-20A and communication items to the preset addresses (top address to top address+19).
After that, The PLC sets address 1 to 4660 (decimal), and address 2 to 22136 (decimal).
After the power to the CIT-200 is turned on, the CIT-200 continues to read the PLC addresses (0 to 2).
After confirming that address 1 is 4660 (decimal) and address 2 is 22136 (decimal), the CIT-200 reads the data of the addresses (top address to top address+19) in address 0.
Note
• Memory type is decided beforehand depending on the PLC selected by the Rotary switch. (pp. 9-10)
To address 0 of the predetermined memory, set the top address in the memory which is used for communications with the CIT-200.
• The CIT-200 directly reads from and writes to the data memory of the PLC, therefore the PLC does not need to manage the communication procedure, and the program can be simplified.
• With writing to and reading from the PLC, the amount of data processed at a time is 20 channels per item.
• Communication protocol is Format 4, word unit (command W).
PLC data memory configuration
• Mitsubishi Calculator link unit (AJ71UC24, A1SJ71UC24-R4), and Serial communication unit
(QJ71C24)
(e.g.) Top address in the memory: R1000
The number of CPT-20A units connected to the CIT-200: 5
The number of CCT-235 units connected to the CPT-20A: 10
All communication items: Used
To the address R1000, 16 0 (lower 4-bit), set the number of CPT-20A units connected to the CIT-200.
To the addresses [R1001 to R1004], set the number of CCT-235 units connected to the CPT-20A.
To the addresses [R1005 to R1007], select the communication item Used or Not used.
To the address R1008, set the signal (setting value change flag) sending the setting value from the PLC to the CCT-235.
The addresses [R1009 to R1019] are used for future extension.
To the address R1020 and those which follow it, set the necessary points of the communication items
(from the main setting value in sequence) to the addresses. The communication items have been set at the addresses [R1005 to R1007].
However, the communication items which have not been set at the addresses [R1005 to R1007] will not be assigned to addresses.
Address
R0000
R0001
R0002
Sets top address in the memory used for communication.
Contents
Communication parameter setting completion flag 1
Communication parameter setting completion flag 2
Setting range, information
1000 (decimal)
Fixed value 4660 (decimal)
Fixed value 22136 (decimal)
23
Address
R1000
Contents
Sets the number of CPT-20A units connected to the CIT-200 to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 5 CPT-20A units are connected: 0005H
R1001
R1002
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 10 CCT-235 units are connected to
4 CPT-20A units (instrument No.0 to No.3): AAAAH
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 10 CCT-235 units are connected to instrument No.4 CPT-20A unit: 000AH
R1003 Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) CPT-20A is not connected: 0000H
R1004 Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) CPT-20A is not connected: 0000H
Communication item Used/
Not used selection flag for every 1 bit of word data.
1: Used 0: Not used
Communication item Used/
Not used selection flag for every 1 bit of word data.
1: Used 0: Not used
16
16
0
1
Setting range, information
: The number of the CPT-20A
16
16
2
3
: Ignored
: Ignored
: Ignored
Setting range: 1 to 10H
16 0
16
16
16
1
2
3
: Instrument No. 0 CPT-20A
: Instrument No. 1 CPT-20A
: Instrument No. 2 CPT-20A
: Instrument No. 3 CPT-20A
Setting range: 1 to AH
16
16
16
16
0
1
2
3
: Instrument No. 4 CPT-20A
: Instrument No. 5 CPT-20A
: Instrument No. 6 CPT-20A
: Instrument No. 7 CPT-20A
Setting range: 1 to AH
16
16
16
16
0
1
2
3
: Instrument No. 8 CPT-20A
: Instrument No. 9 CPT-20A
: Instrument No. 10 CPT-20A
: Instrument No. 11 CPT-20A
Setting range: 1 to AH
16
16
16
0
1
2
: Instrument No. 12 CPT-20A
: Instrument No. 13 CPT-20A
16 3
: Instrument No. 14 CPT-20A
: Instrument No. 15 CPT-20A
Setting range: 1 to AH
2
2
0
1
: Main setting value
2
2
2
2
2
3
4
5
: Main proportional band
: Integral time
: Derivative time
: Alarm 1 (high limit) setting
2
2
2
2
6
7
8
9
: Alarm 2 (low limit) setting
: Main proportional cycle
: Heater burnout alarm
: Control action Perform/Stop
2
2
10
11
2 12
: Auto-tuning Perform/Cancel
: Alarm 1 (high limit) hysteresis
: Alarm 2 (low limit) hysteresis
2 13
: Control output ON/OFF action hysteresis
2
2
14
15
: Control output high limit
: Control output low limit
2 0
: PV (input) filter
: Temperature unit
2
2
1
2
: Control action (Heating/Cooling)
2
2
2
2
3
4
5
6
: Alarm 1 action
: Alarm 2 action
: Loop break alarm 1 action span
: Loop break alarm 1 action time
2
2
2
2
7
8
9
: Anti-reset windup
: PD (Manual) reset
: Sensor correction
: Loop break alarm 2 action span
10
2 11
: Loop break alarm 2 action time
: Cooling proportional band
2
2
12
13
: Cooling proportional cycle
2
2
14
15
: Overlap band/Dead band
: Cooling action mode
: Cooling output ON/OFF action
hysteresis
24
R1008
Not used selection flag for every 1 bit of word data.
1: Used 0: Not used
Designates the setting value change flag.
R1009 to R1019 For future extension
R1020 to R1119
R1120 to R1219
Main setting value (SV) setting
Main proportional band setting
R1220 to R1319 Integral time setting
R1320 to R1419 Derivative time setting
2
2
2
2
0
1
2
3
: PV (input) reading
: MV (manipulated variable) reading
: Heater current (A) value reading
2
2
4
5
2 6
: Current status 1 reading
: Current status 2 reading
: Reading of Software version information
2
: Instrument information reading
7 to 15 : Ignored
0: No change
1: All setting items are changed.
2: Main setting value is changed.
3: Alarm 1, 2 and Heater burnout alarm setting value are changed.
4: Main proportional band, Integral
time, Derivative time, Cooling proportional band, Overlap/Dead band setting value are changed.
5: Auto-tuning Perform/Cancel is
changed
6: Control action Perform/Stop is changed.
7: Alarm 1, 2 action, Main proportion- al cycle, Cooling proportional cycle are changed.
8: Control output high limit and low limit are changed.
Main setting value from Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Main proportional band from Ch1 to
Ch100
Setting range: 0.0 to 100.0%
Integral time from Ch1 to Ch100
Setting range: 0 to 3600 seconds
Derivative time from Ch1 to Ch100
Setting range: 0 to 3600 seconds
R1420 to R1519 Alarm 1 (high limit) setting
R1520 to R1619 Alarm 2 (low limit) setting
R1620 to R1719 Main proportional cycle setting
R1720 to R1819 Heater burnout alarm setting
Alarm 1 (high limit) setting value from
Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Alarm 2 (low limit) setting value from
Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Main proportional cycle from Ch1 to
Ch100
Setting range: 1 to 120 seconds
Heater burnout alarm value from Ch1 to Ch100
Setting range: 0.0 to 20.0A [W(20A)]
0.0 to 50.0A [W(50A)]
R1820 to R1919 Control action Perform/Stop Control action Perform/Stop from
Ch1 to Ch100
0: Control Stop 1: Control Perform
Perform/Cancel
Ch1 to Ch100
0: AT Cancel 1: AT Perform
25
R2020 to R2119
R2520 to R2619 PV (input) filter setting
R2620 to R2719 Temperature unit setting
R2720 to R2819 Control action setting
R2820 to R2919 Alarm 1 action selection
R3020 to R3119
Alarm 1 (high limit) hysteresis setting
R2120 to R2219 Alarm 2 (low limit) hysteresis setting
R2220 to R2319 Control output ON/OFF action hysteresis setting
R2320 to R2419 Control output high limit setting
R2420 to R2519 Control output low limit setting
R2920 to R3019 Alarm 2 action selection
Loop break alarm 1 action span setting
R3120 to R3219 Loop break alarm 1 action time setting
R3220 to R3319 Anti-reset windup setting
Alarm 1 (high limit) hysteresis from
Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Alarm 2 (low limit) hysteresis from
Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Control output ON/OFF action hysteresis from Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Control output high limit value from
Ch1 to Ch100
Setting range: Control output low limit value to 105%
Control output low limit value from
Ch1 to Ch100
Setting range: -5% to Control output high limit value
PV (input) filter value from Ch1 to
Ch100
Setting range: 0.0 to 10.0 seconds
Temperature unit from Ch1 to Ch100
0: 1:
Control action from Ch1 to Ch100
0: Heating action 1: Cooling action
Alarm 1 action from Ch1 to Ch100
0: No alarm action
1: High limit alarm
2: High limit alarm with standby
3: Low limit alarm
4: Low limit alarm with standby
5: H/L limits alarm
6: H/L limits alarm with standby
7: H/L limit range alarm
8: H/L limit range alarm with standby
9: Process high alarm
10: Process high alarm with standby
11: Process low alarm
12: Process low alarm with standby
Alarm 2 action from Ch1 to Ch100
The selection items are the same as those of Alarm 1 action
Loop break alarm 1 action span from
Ch1 to Ch100
Setting range:
0.0 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Loop break alarm 1 action time from
Ch1 to Ch100
Setting range: 200 minutes
Anti-reset windup from Ch1 to Ch100
Setting range: 0 to 100%
26
R3320 to R3419 PD (Manual) reset setting
R3420 to R3519 Sensor correction setting
R3520 to R3619 Loop break alarm 2 action span setting
R3620 to R3719 Loop break alarm 2 action time setting
R3720 to R3819 Cooling proportional band setting
R3820 to R3919 Cooling proportional cycle setting
R3920 to R4019 Overlap/Dead band setting
R4020 to R4119 Cooling action mode selection
R4120 to R4219 Cooling output ON/OFF action hysteresis setting
R4220 to R4319 PV (input) reading
R4320 to R4419 MV (Manipulated variable) reading
R4420 to R4519 Heater current (ampere) value reading
R4520 to R4619 Current status 1 reading
R4620 to R4719 Current status 2 reading
R4720 to R4819 Software version information reading
R4820 to R4919 Instrument information reading
PD (Manual) reset value from Ch1 to
Ch100
Setting range: Proportional band converted value, however, within the range of -199.9 to 999.9
Sensor correction value from Ch1 to
Ch100
Setting range:
-100.0 to 100.0 (Thermocouple,
RTD)
-1000 to 1000 (DC current, voltage)
Loop break alarm 2 action span from
Ch1 to Ch100
Setting range:
0.0 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Loop break alarm 2 action time from
Ch1 to Ch100
Setting range: 200 minutes
Cooling proportional band from Ch1 to Ch100
Setting range: Multiplying factor to
Heating proportional band
0.0 to 10.0 (ON/OFF action when set to 0.0)
Cooling proportional cycle from Ch1 to Ch100
Setting range: 1 to 120 seconds
Overlap/Dead band from Ch1 to
Ch100
Setting range: (Heating proportional band converted value)
Cooling action mode from Ch1 to
Ch100
0: Air cooling (Linear characteristic)
1: Oil cooling (1.5
th power of the linear characteristic)
2: Water cooling (2 nd power of the linear characteristic)
Cooling output ON/OFF action hysteresis from Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Reading of PV from Ch1 to Ch100
Reading of MV from Ch1 to Ch100
Reading of Heater current value from
Ch1 to Ch100
Reading of Current status 1 from
Ch1 to Ch100
Reading of Current status 2 from
Ch1 to Ch100
Reading of Software version information from Ch1 to Ch100
Reading of Instrument information from Ch1 to Ch100
Example 1: Set Ch1 main proportional band to data memory address R1120.
Example 2: Set Ch100 heater burnout alarm to data memory address R1819.
27
• Mitsubishi Micro PLC (FX2N-XXMR), Serial communication unit (QJ71C24)
(e.g.) Top address in the memory: D1000
The number of CPT-20A units connected to the CIT-200: 5
The number of CCT-235 units connected to the CPT-20A: 10
All communication items: Used
To the address D1000, 16 0 (lower 4-bit), set the number of CPT-20A units connected to the CIT-200.
To the addresses [D1001 to D1004], set the number of CCT-235 units connected to the CPT-20A.
To the addresses [D1005 to D1007], select the communication item Used or Not used.
To the address D1008, set the signal (setting value change flag) sending the setting value from the PLC to the CCT-235.
The addresses [D1009 to D1019] are used for the future extension.
To the address D1020 and those which follow it, set the necessary points of the communication items
(from the main setting value) to the addresses in sequence. The communication items has been set at the addresses [D1005 to D1007]
However, the communication items which have not been set at the addresses [D1005 to D1007] will not be assigned to addresses.
Address
D0000
D0001
D0002
Address
D1000
Contents
Top address in the memory used for communications is set.
Communication parameter setting completion flag 1
Communication parameter setting completion flag 2
Setting range, information
1000 (decimal)
Fixed value 4660 (decimal)
Fixed value 22136 (decimal)
D1001
D1002
D1003
D1004
Contents
Sets the number of CPT-20A units connected to the CIT-200 to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 5 CPT-20A units are connected: 0005H
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 10 CCT-235 units are connected to
4 CPT-20A units (instrument No.0 to No.3): AAAAH
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 10 CCT-235 units are connected to instrument No.4 CPT-20A unit: 000AH
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) CPT-20A is not connected: 0000H
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) CPT-20A is not connected: 0000H
16
16
0
1
Setting range, information
: The number of the CPT-20A
16
16
2
3
: Ignored
: Ignored
: Ignored
Setting range: 1 to 10H
16 0
16
16
16
1
2
3
: Instrument No. 0 CPT-20A
: Instrument No. 1 CPT-20A
: Instrument No. 2 CPT-20A
: Instrument No. 3 CPT-20A
Setting range: 1 to AH
16
16
16
16
0
1
2
3
: Instrument No. 4 CPT-20A
: Instrument No. 5 CPT-20A
: Instrument No. 6 CPT-20A
: Instrument No. 7 CPT-20A
Setting range: 1 to AH
16
16
16
16
0
1
2
3
: Instrument No. 8 CPT-20A
: Instrument No. 9 CPT-20A
: Instrument No. 10 CPT-20A
: Instrument No. 11 CPT-20A
Setting range: 1 to AH
16
16
16
0
1
2
: Instrument No. 12 CPT-20A
: Instrument No. 13 CPT-20A
16 3
: Instrument No. 14 CPT-20A
: Instrument No. 15 CPT-20A
Setting range: 1 to AH
28
D1008
Not used selection flag for every 1 bit of word data. word data.
Communication item Used/
1: Used 0: Not used
Communication item Used/
Not used selection flag for every 1 bit of
1: Used 0: Not used
Communication item Used/
Not used selection flag for every 1 bit of word data.
1: Used 0: Not used
Designates the setting value change flag.
2
2
2
2
0
1
2
3
: Main setting value
: Main proportional band
: Integral time
2
2
2
2
4
5
6
7
: Derivative time
: Alarm 1 (high limit) setting
: Alarm 2 (low limit) setting
: Main proportional cycle
2
2
2
8
9
10
2 11
: Heater burnout alarm
: Control action Perform/Stop
: Auto-tuning Perform/Cancel
2 12
: Alarm 1 (high limit) hysteresis
: Alarm 2 (low limit) hysteresis
2 13
: Control output ON/OFF action hysteresis
2
2
14
15
2 0
: Control output high limit
: Control output low limit
: PV (input) filter
2
2
2
2
1
2
3
4
: Temperature unit
: Control action (Heating/Cooling)
: Alarm 1 action
: Alarm 2 action
2
2
2
2
5
6
7
8
: Loop break alarm 1 action span
: Loop break alarm 1 action time
: Anti-reset windup
: PD (Manual) reset
2
2
9
: Sensor correction
: Loop break alarm 2 action span
10
2 11
: Loop break alarm 2 action time
: Cooling proportional band
2
2
12
13
: Cooling proportional cycle
2
2
14
15
: Overlap band/Dead band
: Cooling action mode
: Cooling output ON/OFF action
hysteresis
2
2
2
2
0
1
2
3
: PV (input) reading
: MV reading
: Heater current (A) value reading
2
2
4
5
2 6
: Current status 1 reading
: Current status 2 reading
: Reading of Software version information
2
: Instrument information reading
7 to 15 : Ignored
0: No change
1: All setting items are changed.
2: Main setting value is changed.
3: Alarm 1, 2 and Heater burnout alarm setting value are changed.
4: Main proportional band, Integral
time, Derivative time, Cooling proportional band, Overlap/Dead band setting value are changed.
5: Auto-tuning Perform/Cancel is
changed
6: Control action Perform/Stop is changed.
7: Alarm 1, 2 action, Main proportion- al cycle, Cooling proportional cycle are changed.
8: Control output high limit and low limit are changed.
29
D1009 to D1019 For future extension
D1020 to D1119 Main setting value (SV) setting
D1120 to D1219 Main proportional band setting
D1220 to D1319 Integral time setting
D1320 to D1419 Derivative time setting
D1420 to D1519 Alarm 1 (high limit) setting
D1520 to D1619 Alarm 2 (low limit) setting
D1620 to D1719 Main proportional cycle setting
D1720 to D1819 Heater burnout alarm setting
Main setting value from Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Main proportional band from Ch1 to
Ch100
Setting range: 0.0 to 100.0%
Integral time from Ch1 to Ch100
Setting range: 0 to 3600 seconds
Derivative time from Ch1 to Ch100
Setting range: 0 to 3600 seconds
Alarm 1 (high limit) setting value from
Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Alarm 2 (low limit) setting value from
Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Main proportional cycle from Ch1 to
Ch100
Setting range: 1 to 120 seconds
Heater burnout alarm value from Ch1 to Ch100
Setting range: 0.0 to 20.0A [W(20A)]
0.0 to 50.0A [W(50A)]
D1820 to D1919 Control action Perform/Stop Control action Perform/stop from
Ch1 to Ch100
0: Control stop 1: Control Perform
Perform/Cancel
Ch1 to Ch100
D2020 to D2119 Alarm 1 (high limit) hysteresis setting
0: AT Cancel 1: AT Perform
Alarm 1 (high limit) hysteresis from
Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
D2120 to D2219 Alarm 2 (low limit) hysteresis setting
D2220 to D2319 Control output ON/OFF action hysteresis setting
D2320 to D2419 Control output high limit setting
D2420 to D2519 Control output low limit setting
D2520 to D2619 PV (input) filter setting
Alarm 2 (low limit) hysteresis from
Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Control output ON/OFF action hysteresis from Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Control output high limit value from
Ch1 to Ch100
Setting range: Control output low limit value to 105%
Control output low limit value from
Ch1 to Ch100
Setting range: -5% to Control output high limit value
PV (input) filter value from Ch1 to
Ch100
Setting range: 0.0 to 10.0 seconds
30
D2620 to D2719 Temperature unit setting
D2720 to D2819 Control action setting
D2820 to D2919 Alarm 1 action selection
D2920 to D3019 Alarm 2 action selection
D3020 to D3119 Loop break alarm 1 action span setting
D3120 to D3219 Loop break alarm 1 action time setting
D3220 to D3319 Anti-reset windup setting
D3320 to D3419 PD (Manual) reset setting
D3420 to D3519 Sensor correction setting
D3520 to D3619 Loop break alarm 2 action span setting
D3620 to D3719 Loop break alarm 2 action time setting
D3720 to D3819 Cooling proportional band setting
D3820 to D3919 Cooling proportional cycle setting
Temperature unit from Ch1 to Ch100
0: 1:
Control action from Ch1 to Ch100
0: Heating action 1: Cooling action
Alarm 1 action from Ch1 to Ch100
0: No alarm action
1: High limit alarm
2: High limit alarm with standby
3: Low limit alarm
4: Low limit alarm with standby
5: H/L limits alarm
6: H/L limits alarm with standby
7: H/L limit range alarm
8: H/L limit range alarm with standby
9: Process high alarm
10: Process high alarm with standby
11: Process low alarm
12: Process low alarm with standby
Alarm 2 action from Ch1 to Ch100
The selection items are the same as those of Alarm 1 action
Loop break alarm 1 action span from
Ch1 to Ch100
Setting range:
0.0 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Loop break alarm 1 action time from
Ch1 to Ch100
Setting range: 200 minutes
Anti-reset windup from Ch1 to Ch100
Setting range: 0 to 100%
PD (Manual) reset value from Ch1 to
Ch100
Setting range: Proportional band converted value, however, within the range of -199.9 to 999.9
Sensor correction value from Ch1 to
Ch100
Setting range:
-100.0 to 100.0 (Thermocouple,
RTD)
-1000 to 1000 (DC current, voltage)
Loop break alarm 2 action span from
Ch1 to Ch100
Setting range:
0.0 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Loop break alarm 2 action time from
Ch1 to Ch100
Setting range: 200 minutes
Cooling proportional band from Ch1 to Ch100
Setting range: Multiplying factor to
Heating proportional band
0.0 to 10.0 (ON/OFF action when set to 0.0)
Cooling proportional cycle from Ch1 to Ch100
Setting range: 1 to 120 seconds
31
D3920 to D4019 Overlap/Dead band setting
D4020 to D4119 Cooling action mode selection
D4120 to D4219 Cooling output ON/OFF action hysteresis setting
D4220 to D4319 PV (input) reading
D4320 to D4419 MV (Manipulated variable) reading
D4420 to D4519 Heater current (ampere) value reading
D4520 to D4619 Current status 1 reading
D4620 to D4719 Current status 2 reading
D4720 to D4819 Software version information reading
D4820 to D4919 Instrument information reading
Overlap/Dead band from Ch1 to
Ch100
Setting range: (Heating proportional band converted value)
Cooling action mode from Ch1 to
Ch100
0: Air cooling (Linear characteristic)
1: Oil cooling (1.5
th power of the linear characteristic)
2: Water cooling (2 nd power of the linear characteristic)
Cooling output ON/OFF action hysteresis from Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Reading of PV from Ch1 to Ch100
Reading of MV from Ch1 to Ch100
Reading of Heater current value from
Ch1 to Ch100
Reading of Current status 1 from
Ch1 to Ch100
Reading of Current status 2 from
Ch1 to Ch100
Reading of Software version information from Ch1 to Ch100
Reading of Instrument information from Ch1 to Ch100
Example 1: Set Ch1 main proportional band to data memory address D1120.
Example 2: Set Ch100 heater burnout alarm to data memory address D1819.
32
Processing in the PLC
• Setting value change flag setting
The following procedures show how to change setting values from the PLC. See (Fig.7.3-1).
(1) When changing the CCT-235 setting value, the PLC sets the setting value change flag from the following
(1 to 8) items.
1. All setting values
2. Main setting value
3. Alarm 1, Alarm 2, Heater burnout alarm
4. Main proportional band, Integral time, Derivative time, Cooling proportional band, Overlap/Dead band
5. Auto-tuning
6. Control action (Perform/Stop)
7. Alarm 1 and Alarm 2 action selection, Main proportional cycle, Cooling proportional cycle
8. Control output high limit, low limit.
(2) After the CIT-200 reads the contents of the setting value change flag (3), the CIT-200 sets them to the CCT-235 via the CPT-20A (4).
(5) After that, the CIT-200 sets the value of the setting value change flag to “0”.
The setting data in the data memory should be set within the setting range of CCT-235 since the
CIT-200 does not check the allowable setting range of the data.
PLC
(1) Sets the setting value
change flag to (1 to 8).
(6) The setting value
change flag is set to 0.
CIT-200
(2) Reads the setting
value change flag.
(3) Reads setting
values from the PLC.
(4) Sets the setting values
of (3) to the CPT-20A.
(5) Writes the setting
value change flag to 0.
CPT-20A
Sets the setting values
to each CCT-235.
CCT-235
Changes the setting values.
• PV reading
After the CIT-200 reads PV from the CCT-235, the CIT-200 writes the PV to the PLC memory area where
“PV (input) reading” is assigned.
Notice
The CIT-200 can monitor the temperature of up to 16 blocks (320 points). However, if the CIT-200 reads or writes the number of data exceeding the PLC data memory capacity, communication errors occur and it does not work normally.
Therefore, the number of data of the CIT-200 has to be within PLC data memory capacity.
For the PLC data memory capacity, refer to the Instruction manual for each PLC.
33
8. Communication between the CIT-200 and
Omron PLC
8.1 Setup of Host link unit (C200H-LK202-V1)
(1)
(3)
LK202-V1
RUN
RCV
SW1
SW3
ERROR
The front of the unit
CH
XMT
SW2
SW4
(2)
(4)
(5)
The inside of the unit
(6) ON
OFF
(1) Sets the instrument number of the double digit (x10).
Set the number to 0.
(2) Sets the instrument number of the single digit (x1).
Set the number to 0.
(3) Sets the communication speed.
Set the communication speed to switch No.5 (9600bps) or No.6 (19200bps).
(4) Sets the command level, parity and transmission code.
Select the switch No.2 to set them.
(5) Sets the terminator Connected or Not connected.
Set the terminator to Connected (ON).
(6) Sets the procedure of 1:1 or 1:N.
Set to 1:N procedure (OFF).
8.2 Initial setting of Host link unit (C200H-LK202-V1)
When communicating with the C series, set the addresses from the PLC to store the setting item data of the C series after the power supply to the PLC is turned on.
Communication is impossible if the addresses for storing the setting item data of the C series are not set.
Set the program referring to the sample program (Fig.8.2-1) as follows.
(Execute only the first scan of the following sample program.)
Note
Leave file memory addresses (DM0000 to DM0002) of the PLC vacant when setting the program since the addresses (DM0000 to DM0002) are used for the top address for the temperature control.
34
• Sample program
25315
MOV
#03E8
DM0000
MOV
#000A
DM1000
(1)
(2)
Explanation of the Sample program
(1) To the DM0000 address, set the top address (DM1000) in the memory area which is used for the communication with the CIT-200.
(2) To the address DM1000, set the number of CCT-235 units (10 units) connected with the CIT-200.
MOV
#AAAA
DM1001
MOV
#AAAA
DM1002
MOV
#00AA
DM1003
(3)
(3) To the addresses DM1001 to DM1004, set the number of
CCT-235 units (10 units) connected with the CPT-20A.
(4) To the address DM1005, set the communication item
Used/Not used selection flag.
See page 37 for the communication item.
(5) To address DM1006, set the communication item
Used/Not used selection flag.
See page 37 for the communication item.
MOV
#0000
DM1004
MOV
#FFFF
DM1005
(4)
(6) To address DM1007, set the communication item
Used/Not used selection flag.
See page 37 for the communication item.
MOV
#FFFF
DM1006
(7) To the address DM0001, set the fixed value 4660
(8) To the address DM0002, set the fixed value 22136
(decimal).
DM1007
(6)
MOV
#1234
DM0001
MOV
#5678
DM0002
END
(7)
(8)
(Fig. 8.2-1)
8.3 Communication details
How to communicate between the CIT-200 and Host link unit (C200H-LK202-V1)
After the power to the PLC is turned on, the PLC sets address 0 in the memory area to top address and sets the number of CPT-20A units connected to the CIT-200, the number of the CCT-235 units connected to the CPT-20A and communication items to the preset addresses (top address to top address+19).
After that, The PLC sets address 1 to 4660 (decimal), and address 2 to 22136 (decimal).
After the power to the CIT-200 is turned on, the CIT-200 continues to read the PLC address (0 to 2).
After confirming that address 1 is 4660 (decimal) and address 2 is 22136 (decimal), the CIT-200 reads the data of the addresses (top address to top address+19) in address 0.
Note
• Memory type is decided beforehand depending on the PLC selected by the Rotary switch.
To the address 0 of the predetermined memory, set the top address in the memory area which is used for communications with the CIT-200.
• The CIT-200 directly reads from and writes to the data memory of the PLC, therefore the PLC does not need to manage the communication procedure, and the program can be simplified.
• With writing to and reading from the PLC, the amount of data processed at a time is 20 channels per item.
35
n PLC data memory configuration
• Omron Host link unit (C200H-LK202-V1)
(e.g.) Top address in the memory area: DM1000
The number of CPT-20A units connected to the CIT-200: 5
The number of CCT-235 units connected to the CPT-20A: 10
All communication items: Used
To the address DM1000, 16 0 (lower 4-bit), set the number of CPT-20A units connected to the CIT-200.
To the addresses [DM1001 to DM1004], set the number of CCT-235 units connected to the CPT-20A.
To the addresses [DM1005 to DM1007], select the communication item Used or Not used.
To the address DM1008, set the signal (setting value change flag) sending the value from the PLC to
CCT-235.
The addresses [DM1009 to DM1019] are used for the future extension.
To the address DM1020 and those which follow it, set the necessary points of the communication items
(from the main setting value) to the addresses in sequence. The communication items have been set at the addresses [DM1005 to DM1007]
However, the communication items which have not been set at the addresses [DM1005 to DM1007] will not be assigned to addresses.
Address
DM0000
DM0001
DM0002
Contents
Top address in the memory used for communications is set.
Communication parameter setting completion flag 1
Communication parameter setting completion flag 2
Setting range, information
1000 (decimal)
Fixed value 4660 (decimal)
Fixed value 22136 (decimal)
Address
DM1000
DM1001
DM1002
DM1003
DM1004
Contents
Sets the number of CPT-20A units connected to the CIT-200 to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 5 CPT-20A units are connected: 0005H
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 10 CCT-235 units are connected to
4 CPT-20A units (instrument No.0 to No.3): AAAAH
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 10 CCT-235 units are connected to instrument No.4 CPT-20A unit: 000AH
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) The CPT-20A is not connected: 0000H
Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) The CPT-20A is not connected: 0000H
16
16
0
1
Setting range, information
: The number of the CPT-20A
16
16
2
3
: Ignored
: Ignored
: Ignored
Setting range: 1 to 10H
16 0
16
16
16
1
2
3
: Instrument No. 0 CPT-20A
: Instrument No. 1 CPT-20A
: Instrument No. 2 CPT-20A
: Instrument No. 3 CPT-20A
Setting range: 1 to AH
16
16
16
16
Setting range: 1 to AH
16
16
16
16
0
1
2
3
0
1
2
3
: Instrument No. 4 CPT-20A
: Instrument No. 5 CPT-20A
: Instrument No. 6 CPT-20A
: Instrument No. 7 CPT-20A
: Instrument No. 8 CPT-20A
: Instrument No. 9 CPT-20A
: Instrument No. 10 CPT-20A
: Instrument No. 11 CPT-20A
Setting range: 1 to AH
16
16
16
0
1
2
: Instrument No. 12 CPT-20A
: Instrument No. 13 CPT-20A
16 3
: Instrument No. 14 CPT-20A
: Instrument No. 15 CPT-20A
Setting range: 1 to AH
36
DM1008
Not used selection flag for every 1 bit of word data. word data.
Communication item Used/
1: Used 0: Not used
Communication item Used/
Not used selection flag for every 1 bit of
1: Used 0: Not used
Communication item Used/
Not used selection flag for every 1 bit of word data.
1: Used 0: Not used
Designates the setting value change flag.
2
2
2
2
0
1
2
3
: Main setting value
: Main proportional band
: Integral time
2
2
2
2
4
5
6
7
: Derivative time
: Alarm 1 (high limit) setting
: Alarm 2 (low limit) setting
: Main proportional cycle
2
2
2
8
9
10
2 11
: Heater burnout alarm
: Control action Perform/Stop
: Auto-tuning Perform/Cancel
2 12
: Alarm 1 (high limit) hysteresis
: Alarm 2 (low limit) hysteresis
2 13
: Control output ON/OFF action hysteresis
2
2
14
15
2 0
: Control output high limit
: Control output low limit
: PV (input) filter
2
2
2
2
1
2
3
4
: Temperature unit
: Control action (Heating/Cooling)
: Alarm 1 action
: Alarm 2 action
2
2
2
2
5
6
7
8
: Loop break alarm 1 action span
: Loop break alarm 1 action time
: Anti-reset windup
: PD (Manual) reset
2
2
9
: Sensor correction
: Loop break alarm 2 action span
10
2 11
: Loop break alarm 2 action time
: Cooling proportional band
2
2
12
13
: Cooling proportional cycle
2
2
14
15
: Overlap band/Dead band
: Cooling action mode
: Cooling output ON/OFF action
hysteresis
2
2
2
2
0
1
2
3
: PV (input) reading
: MV reading
: Heater current (A) value reading
2
2
4
5
2 6
: Current status 1 reading
: Current status 2 reading
: Reading of Software version information
2
: Instrument Information reading
7 to 15 : Ignored
0: No change
1: All setting items are changed.
2: Main setting value is changed.
3: Alarm 1, 2 and Heater burnout alarm setting value are changed.
4: Main proportional band, Integral
time, Derivative time, Cooling proportional band, Overlap/Dead band setting value are changed.
5: Auto-tuning Perform/Cancel is changed
6: Control action Perform/Stop is changed.
7: Alarm 1, 2 action, Main proportion- al cycle, Cooling proportional cycle are changed.
8: Control output high limit and low limit are changed.
37
DM1009 to
DM1019
DM1020 to
DM1119
DM1120 to
DM1219
DM1220 to
DM1319
DM1320 to
DM1419
DM1420 to
DM1519
DM1520 to
DM1619
DM1620 to
DM1719
DM1720 to
DM1819
DM1820 to
DM1919
DM1920 to
DM2019
DM2020 to
DM2119
DM2120 to
DM2219
DM2220 to
DM2319
Control output ON/OFF action hysteresis setting
DM2320 to
DM2419
DM2420 to
DM2519
For future extension
Main setting value (SV) setting
Main proportional band setting
Integral time setting
Derivative time setting
Alarm 1 (high limit) setting
Alarm 2 (low limit) setting
Main proportional cycle setting
Heater burnout alarm setting
Control action Perform/Stop
Auto-tuning Perform/Cancel
Alarm 1 (high limit) hysteresis setting
Alarm 2 (low limit) hysteresis setting
Control output high limit setting
Control output low limit setting
Main setting value from Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Main proportional band from Ch1 to
Ch100
Setting range: 0.0 to 100.0%
Integral time from Ch1 to Ch100
Setting range: 0 to 3600 seconds
Derivative time from Ch1 to Ch100
Setting range: 0 to 3600 seconds
Alarm 1 (high limit) setting value from
Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Alarm 2 (low limit) setting value from
Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Main proportional cycle from Ch1 to
Ch100
Setting range: 1 to 120 seconds
Heater burnout alarm value from Ch1 to Ch100
Setting range: 0.0 to 20.0A [W(20A)]
0.0 to 50.0A [W(50A)]
Control action Perform/Stop from
Ch1 to Ch100
0: Control Stop 1: Control Perform
Auto-tuning Perform/Cancel from
Ch1 to Ch100
0: AT Cancel 1: AT Perform
Alarm 1 (high limit) hysteresis from
Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Alarm 2 (low limit) hysteresis from
Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Control output ON/OFF action hysteresis from Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Control output high limit value from
Ch1 to Ch100
Setting range: Control output low limit value to 105%
Control output low limit value from
Ch1 to Ch100
Setting range: -5% to Control output high limit value
38
DM2520 to
DM2619
DM2620 to
DM2719
DM2720 to
DM2819
DM2820 to
DM2919
DM2920 to
DM3019
DM3020 to
DM3119
DM3120 to
DM3219
DM3220 to
DM3319
DM3320 to
DM3419
DM3420 to
DM3519
PV (input) filter setting
Temperature unit setting
Control action setting
Alarm 1 action selection
Alarm 2 action selection
Loop break alarm 1 action span setting
Loop break alarm 1 action time setting
Anti-reset windup setting
PD (Manual) reset setting
DM3520 to
DM3619
Loop break alarm 2 action span setting
DM3620 to
DM3719
DM3720 to
DM3819
Sensor correction setting
Loop break alarm 2 action time setting
Cooling proportional band setting
PV (input) filter value from Ch1 to
Ch100
Setting range: 0.0 to 10.0 seconds
Temperature unit from Ch1 to Ch100
0: 1:
Control action from Ch1 to Ch100
0: Heating action 1: Cooling action
Alarm 1 action from Ch1 to Ch100
0: No alarm action
1: High limit alarm
2: High limit alarm with standby
3: Low limit alarm
4: Low limit alarm with standby
5: H/L limits alarm
6: H/L limits alarm with standby
7: H/L limit range alarm
8: H/L limit range alarm with standby
9: Process high alarm
10: Process high alarm with standby
11: Process low alarm
12: Process low alarm with standby
Alarm 2 action from Ch1 to Ch100
The selection items are the same as those of Alarm 1 action
Loop break alarm 1 action span from
Ch1 to Ch100
Setting range:
0.0 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Loop break alarm 1 action time from
Ch1 to Ch100
Setting range: 200 minutes
Anti-reset windup from Ch1 to Ch100
Setting range: 0 to 100%
PD (Manual) reset value from Ch1 to
Ch100
Setting range: Proportional band converted value, however, within the range of -199.9 to 999.9
Sensor correction value from Ch1 to
Ch100
Setting range:
-100.0 to 100.0 (Thermocouple,
RTD)
-1000 to 1000 (DC current, voltage)
Loop break alarm 2 action span from
Ch1 to Ch100
Setting range:
0.0 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Loop break alarm 2 action time from
Ch1 to Ch100
Setting range: 200 minutes
Cooling proportional band from Ch1 to Ch100
Setting range: Multiplying factor to
Heating proportional band
0.0 to 10.0 (ON/OFF action when set to 0.0)
39
DM3820 to
DM3919
DM3920 to
DM4019
DM4020 to
DM4119
DM4120 to
DM4219
Cooling proportional cycle setting
Overlap/Dead band setting
Cooling action mode selection
Cooling output ON/OFF action hysteresis setting
Cooling proportional cycle from Ch1 to Ch100
Setting range: 1 to 120 seconds
Overlap/Dead band from Ch1 to
Ch100
Setting range: (Heating proportional band converted value)
Cooling action mode from Ch1 to
Ch100
0: Air cooling (Linear characteristic)
1: Oil cooling (1.5
th power of the linear characteristic)
2: Water cooling (2 nd power of the linear characteristic)
Cooling output ON/OFF action hysteresis from Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Reading of PV from Ch1 to Ch100 DM4220 to
DM4319
DM4320 to
DM4419
DM4420 to
DM4519
DM4520 to
DM4619
DM4620 to
DM4719
DM4720 to
DM4819
DM4820 to
DM4919
PV (input) reading
MV (Manipulated variable) reading
Heater current (ampere) value reading
Current status 1 reading
Current status 2 reading
Software version information reading
Instrument information reading
Reading of MV from Ch1 to Ch100
Reading of Heater current value from
Ch1 to Ch100
Reading of Current status 1 from
Ch1 to Ch100
Reading of Current status 2 from
Ch1 to Ch100
Reading of Software version information from Ch1 to Ch100
Reading of Instrument information from Ch1 to Ch100
Example 1: Set Ch1 main proportional band to data memory address DM1120.
Example 2: Set Ch100 heater burnout alarm to data memory address DM1819.
Processing in the PLC
For the processing in the PLC, see page 33.
40
9. Communication between the CIT-200 and
Fuji PLC
9.1 Setup of Interface module (NC1L-RS4)
RS4
RUN
SND
RCV
DVE
(1)
ADDRESS
X 10
X 1
SDA
SDB
RDA
(2)
RDB
SG
FG
The front of the unit
(3)
(4)
(5)
The inside of the unit
E
F
1
2
3 4 5
6
7
9
C D B
A
ON
OFF
(1) Sets the instrument number of the double digit (x10).
Set the number to 0.
(2) Sets the instrument number of the single digit (x1).
Set the number to 0.
(3) Sets the transmission specifications, referring to (Table 9.1-1).
Set the baud rate to 9600bps or 19200bps.
Set the items except for the baud rate to .
(4) Sets the transmission modes.
Set the transmission modes to Switch No.3.
(5) Sets the terminator Connected or Not connected.
Set the terminator to Connected (ON).
(Table 9.1-1)
B. rate
SW No.
300bps 600bps 1,200bps 2,400bps 4,800bps 9,600bps 19,200bps
Not used
OFF
3 OFF
SW No. Setting item
4 Stop
Setting switch ON Setting switch OFF
1 bit 2 bits
5 Data 7 bits
6 Even parity/Odd parity Even
7 Parity Yes
Switch setting effective
8 bits
Odd
No
Initial file
41
9.2 Initial setting of Interface module (NC1L-RS4)
(1) Define the user file area with system definition (File number: W30, File range: Number of data which is required for the communication, Data format: SI).
For more details, refer to Fuji Users' manual [Command] for Program controller (MICREX-F).
(2) When communicating with the C series, set the program to the PLC to perform initial setting
(addresses to store the C series setting item data) of one (1) scan after the power supply to the PLC is turned on.
Communication is impossible if the initial setting (addresses to store the C series setting item data) is not performed.
Note
Leave the PLC file memory addresses (W30.0000 to W30.0002) vacant since these will be used for
the top address for the temperature control.
9.3 Communication details
How to communicate between the CIT-200 and Interface module (NC1L-RS4)
The CIT-200 sets the CCT-235 to parameters via the CPT-20A after reading the PLC data memory through the Interface module (NC1L-RS4).
The CIT-200 constantly monitors the CCT-235 via the CPT-20A and writes its status to the PLC data memory.
After the power to the PLC is turned on, the PLC sets address 0 in the memory to top address for use of the communication with the CIT-200. The PLC sets the preset addresses (top address to top address +19) to the number of CPT-20A units connected to the CIT-200, the number of CCT-235 units connected to the CPT-20A and communication items.
After that, the PLC sets address 1 to 4660 (decimal) and address 2 to 22136 (decimal).
After the power to the CIT-200 is turned on, the CIT-200 continues to read the PLC addresses (0 to 2).
After confirming that address 1 is 4660 (decimal) and address 2 is 22136 (decimal), the CIT-200 reads data of the addresses (top address to address +19) which has been set in address 0.
File memory "W30 and those which follow it" area is used for writing/reading address of the data.
(It is necessary to set the file memory area from the PLC side)
For more details, refer to Fuji Users' manual [Command] for Program controller (MICREX-F).
Note
• Memory type is decided beforehand depending on the PLC selected by the Rotary switch.
To the address 0 of the predetermined memory, set the top address in the memory which is used for communications with the CPT-20A.
• The CIT-200 directly reads from and writes to the data memory of the PLC, therefore the PLC does not need to manage the communication procedure, and the program can be simplified.
• With writing to and reading from the PLC, the amount of data processed at a time is 20 channels per item.
42
PLC data memory configuration
• Fuji interface module (NC1L-RS4)
(e.g.) Top address in the memory: W30.1000
The number of CPT-20A units connected to the CIT-200: 5
The number of CCT-235 units connected to the CPT-20A: 10
All communication items: Used
To the address W30.1000, 16 0 (lower 4-bit), set the number of CPT-20A units connected to the CIT-200.
To the addresses [W30.1001 to W30.1004], set the number of CCT-235 units connected to the CPT-20A.
To the addresses [W30.1005 to W30.1007], select the communication item Used or Not used.
To the address W30.1008, set the signal (setting value change flag) sending the value from the PLC to the CCT-235.
The addresses [W30.1009 to W30.1019] are used for future extension.
To the address W30.1020 and those which follow it, set the necessary points of the communication items
(from the main setting value in sequence) to the addresses. The communication items have been set at the addresses [W30.1005 to W30.1007].
However, the communication items which have not been set at the addresses [W30.1005 to W30.1007] will not be assigned to addresses.
Address
W30.0000
W30.0001
W30.0002
Contents
Sets top address in the memory used for communication.
Communication parameter setting completion flag 1
Communication parameter setting complete flag 2
Address
W30.1000
Contents
Sets the number of CPT-20A units connected to the CIT-200 to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 5 CPT-20A units are connected: 0005H the connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 10 CCT-235 units are connected to
4 CPT-20A units (instrument No.0 to No.3): AAAAH the connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) 10 CCT-235 units are connected to instrument No.4 CPT-20A unit: 000AH
W30.1003 Sets the number of CCT-235 units connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) The CPT-20A is not connected: 0000H
W30.1004 Sets connected to the CPT-20A to every 4-bit of word data.
(0 is regarded as 1 unit.)
(e.g.) The CPT-20A is not connected: 0000H
1000 (decimal)
Fixed value 4660 (decimal)
Fixed value 22136 (decimal)
16
16
0
1
Setting range, information
: The number of the CPT-20A
16
16
2
3
: Ignored
: Ignored
: Ignored
Setting range: 1 to 10H
16 0
16
16
16
1
2
3
: Instrument No. 0 CPT-20A
: Instrument No. 1 CPT-20A
: Instrument No. 2 CPT-20A
: Instrument No. 3 CPT-20A
Setting range: 1 to AH
16
16
16
16
Setting range: 1 to AH
16
16
16
16
0
1
2
3
0
1
2
3
Setting range, information
: Instrument No. 4 CPT-20A
: Instrument No. 5 CPT-20A
: Instrument No. 6 CPT-20A
: Instrument No. 7 CPT-20A
: Instrument No. 8 CPT-20A
: Instrument No. 9 CPT-20A
: Instrument No. 10 CPT-20A
: Instrument No. 11 CPT-20A
Setting range: 1 to AH
16 0 : Instrument No. 12 CPT-20A
16
16
1
2
: Instrument No. 13 CPT-20A
16 3
: Instrument No. 14 CPT-20A
: Instrument No. 15 CPT-20A
Setting range: 1 to AH
43
W30.1008 Designates word data.
Communication item Used/
Not used selection flag for every 1 bit of
1: Used 0: Not used
Communication item Used/
Not used selection flag for every 1 bit of word data.
1: Used 0: Not used
Communication item Used/
Not used selection flag for every 1 bit of word data.
1: Used 0: Not used
2
2
2
2
0
1
2
3
: Main setting value
: Main proportional band
: Integral time
2
2
2
2
4
5
6
7
: Derivative time
: Alarm 1 (high limit) setting
: Alarm 2 (low limit) setting
: Main proportional cycle
2
2
2
8
9
10
2 11
: Heater burnout alarm
: Control action Perform/Stop
: Auto-tuning Perform/Cancel
2 12
: Alarm 1 (high limit) hysteresis
: Alarm 2 (low limit) hysteresis
2 13
: Control output ON/OFF action hysteresis
2
2
14
15
2 0
: Control output high limit
: Control output low limit
: PV (input) filter
2
2
2
2
1
2
3
4
: Temperature unit
: Control action (Heating/Cooling)
: Alarm 1 action
: Alarm 2 action
2
2
2
2
5
6
7
8
: Loop break alarm 1 action span
: Loop break alarm 1 action time
: Anti-reset windup
: PD (Manual) reset
2
2
9
: Sensor correction
: Loop break alarm 2 action span
10
2 11
: Loop break alarm 2 action time
: Cooling proportional band
2
2
12
13
: Cooling proportional cycle
2
2
14
15
: Overlap band/Dead band
: Cooling action mode
: Cooling output ON/OFF action
hysteresis
2
2
2
2
0
1
2
3
: PV (input) reading
: MV reading
: Heater current (A) value reading
2
2
4
5
2 6
: Current status 1 reading
: Current status 2 reading
: Reading of Software version information
2
: Instrument information reading
7 to 15 : Ignored
0: No change
1: All setting items are changed.
2: Main setting value is changed.
3: Alarm 1, 2 and Heater burnout alarm setting value are changed.
4: Main proportional band, Integral
time, Derivative time, Cooling proportional band, Overlap/Dead band setting value are changed.
5: Auto-tuning Perform/Cancel is
changed
6: Control action Perform/Stop is changed.
7: Alarm 1, 2 action, Main proportion- al cycle, Cooling proportional cycle are changed.
8: Control output high limit and low limit are changed.
44
W30.1009 to
W30.1019
W30.1020 to
W30.1119
W30.1120 to
W30.1219
W30.1220 to
W30.1319
W30.1320 to
W30.1419
W30.1420 to
W30.1519
W30.1520 to
W30.1619
W30.1620 to
W30.1719
W30.1720 to
W30.1819
W30.1820 to
W30.1919
W30.1920 to
W30.2019
W30.2020 to
W30.2119
W30.2120 to
W30.2219
W30.2220 to
W30.2319
Control output ON/OFF action hysteresis setting
W30.2320 to
W30.2419
For future extension
Main setting value (SV) setting
Main proportional band setting
Integral time setting
Derivative time setting
Alarm 1 (high limit) setting
Alarm 2 (low limit) setting
Main proportional cycle setting
Heater burnout alarm setting
Control action Perform/Stop
Auto-tuning Perform/Cancel
Alarm 1 (high limit) hysteresis setting
Alarm 2 (low limit) hysteresis setting
Control output high limit setting
W30.2420 to
W30.2519
Control output low limit setting
W30.2520 to
W30.2619
PV (input) filter setting
45
Main setting value from Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Main proportional band from Ch1 to
Ch100
Setting range: 0.0 to 100.0%
Integral time from Ch1 to Ch100
Setting range: 0 to 3600 seconds
Derivative time from Ch1 to Ch100
Setting range: 0 to 3600 seconds
Alarm 1 (high limit) setting value from
Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Alarm 2 (low limit) setting value from
Ch1 to Ch100
Setting range: Refer to the
Instruction manual for C series “11.2
Temperature control unit (CCT-235)”.
Main proportional cycle from Ch1 to
Ch100
Setting range: 1 to 120 seconds
Heater burnout alarm value from Ch1 to Ch100
Setting range: 0.0 to 20.0A [W(20A)]
0.0 to 50.0A [W(50A)]
Control action Perform/Stop from
Ch1 to Ch100
0: Control Stop 1: Control Perform
Auto-tuning Perform/Cancel from
Ch1 to Ch100
0: AT Cancel 1: AT Perform
Alarm 1 (high limit) hysteresis from
Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Alarm 2 (low limit) hysteresis from
Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Control output ON/OFF action hysteresis from Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Control output high limit value from
Ch1 to Ch100
Setting range: Control output low limit value to 105%
Control output low limit value from
Ch1 to Ch100
Setting range: -5% to Control output high limit value
PV (input) filter value from Ch1 to
Ch100
Setting range: 0.0 to 10.0 seconds
W30.2620 to
W30.2719
W30.2720 to
W30.2819
W30.2820 to
W30.2919
W30.2920 to
W30.3019
W30.3020 to
W30.3119
W30.3120 to
W30.3219
W30.3220 to
W30.3319
W30.3320 to
W30.3419
W30.3420 to
W30.3519
Alarm 2 action selection
Loop break alarm 1 action span setting
Loop break alarm 1 action time setting
Anti-reset windup setting
PD (Manual) reset setting
Sensor correction setting
W30.3520 to
W30.3619
Loop break alarm 2 action span setting
W30.3620 to
W30.3719
W30.3720 to
W30.3819
W30.3820 to
W30.3919
Temperature unit setting
Control action setting
Alarm 1 action selection
Loop break alarm 2 action time setting
Cooling proportional band setting
Cooling proportional cycle setting
46
Temperature unit from Ch1 to Ch100
0: 1:
Control action from Ch1 to Ch100
0: Heating action 1: Cooling action
Alarm 1 action from Ch1 to Ch100
0: No alarm action
1: High limit alarm
2: High limit alarm with standby
3: Low limit alarm
4: Low limit alarm with standby
5: H/L limits alarm
6: H/L limits alarm with standby
7: H/L limit range alarm
8: H/L limit range alarm with standby
9: Process high alarm
10: Process high alarm with standby
11: Process low alarm
12: Process low alarm with standby
Alarm 2 action from Ch1 to Ch100
The selection items are the same as those of Alarm 1 action
Loop break alarm 1 action span from
Ch1 to Ch100
Setting range:
0.0 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Loop break alarm 1 action time from
Ch1 to Ch100
Setting range: 200 minutes
Anti-reset windup from Ch1 to Ch100
Setting range: 0 to 100%
PD (Manual) reset value from Ch1 to
Ch100
Setting range: Proportional band converted value, however, within the range of -199.9 to 999.9
Sensor correction value from Ch1 to
Ch100
Setting range:
-100.0 to 100.0 (Thermocouple,
RTD)
-1000 to 1000 (DC current, voltage)
Loop break alarm 2 action span from
Ch1 to Ch100
Setting range:
0.0 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Loop break alarm 2 action time from
Ch1 to Ch100
Setting range: 200 minutes
Cooling proportional band from Ch1 to Ch100
Setting range: Multiplying factor to
Heating proportional band
0.0 to 10.0 (ON/OFF action when set to 0.0)
Cooling proportional cycle from Ch1 to Ch100
Setting range: 1 to 120 seconds
W30.3920 to
W30.4019
W30.4020 to
W30.4119
W30.4120 to
W30.4219
Overlap/Dead band setting
Cooling action mode selection
Cooling output ON/OFF action hysteresis setting
Overlap/Dead band from Ch1 to
Ch100
Setting range: (Heating proportional band converted value)
Cooling action mode from Ch1 to
Ch100
0: Air cooling (Linear characteristic)
1: Oil cooling (1.5
th power of the linear characteristic)
2: Water cooling (2 nd power of the linear characteristic)
Cooling output ON/OFF action hysteresis from Ch1 to Ch100
Setting range:
0.1 to 100.0 (Thermocouple, RTD)
1 to 1000 (DC current, voltage)
Reading of PV from Ch1 to Ch100 W30.4220 to
W30.4319
W30.4320 to
W30.4419
W30.4420 to
W30.4519
W30.4520 to
W30.4619
W30.4620 to
W30.4719
W30.4720 to
W30.4819
W30.4820 to
W30.4919
PV (input) reading
MV (Manipulated variable) reading
Heater current (ampere) value reading
Current status 1 reading
Current status 2 reading
Software version information reading
Instrument information reading
Reading of MV from Ch1 to Ch100
Reading of Heater current value from
Ch1 to Ch100
Reading of Current status 1 from
Ch1 to Ch100
Reading of Current status 2 from
Ch1 to Ch100
Reading of Software version information from Ch1 to Ch100
Reading of Instrument information from Ch1 to Ch100
Example 1: Set Ch1 main proportional band to data memory address W30.1120.
Example 2: Set Ch100 heater burnout alarm to data memory address W30.1819.
Processing in the PLC
For the processing in the PLC, see page 33.
47
10. Specifications
10.1 Standard specifications
Name : PLC Interface Unit
Model
Supply voltage
: CIT-200
: 100 to 240V AC, 50/60Hz
Allowable voltage fluctuation : 85 to 264V AC
Communication line
Between the CIT-200 and PLC : Based on RS-232C/RS-422A(RS-485) (Selectable by DIP switch)
Between the CIT-200 and CPT-20A: Based on RS-422A
External dimensions
Mounting method
: 48 (W) x 96 (H) x 100 (D) mm
: DIN rail mounting
Case
Action indicator
: Flame resistant resin, Color: Black
Instrument power indicator : When the power supply to the instrument is turned on, a green LED
Communication indicator : When communicating between the CIT-200 and PLC, a yellow LED
(TX/RX) blinks.
Setting
PLC type: Set with the Rotary switch. (pp.9, 10)
Communication between the PLC and CIT-200: Set with the DIP switch. (pp.9, 10)
Communication line between the PLC and CIT-200: Set with the DIP switch. (pp.9, 10)
Function
Communication function between the PLC and CIT-200:
Communication line : Based on RS-232C/RS-422A (RS-485)
Based on RS-422A [120 terminator built-in between RXA(-)and RXB(+)]
Communication system : Half-duplex communication start-stop synchronous
Communication speed : 19200bps, 9600bps (Selectable by DIP switch.)
Data format
Start bit : 1
Data length : 7, 8 (Selectable by DIP switch.)
Parity : None, even, odd (Selectable by DIP switch.)
Stop bit : 1, 2
Communication function between the CPT-20A and CIT-200:
Communication line : Based on RS-422A [120 terminator built-in between RXA(-)and RXB(+)]
Communication speed : 19200bps fixed
Data format
Start bit : 1
Data length : 7
Parity : Even
Stop bit : 1
Protocol : Shinko protocol for the CPT-20A
48
Circuit isolation configuration
Isolated CPU
Power supply
Isolated
Power 5V DC
Isolated
Communication with CPT-20A
Communication
with PLC
Isolated
Power 12V DC
Isolated
PWM power
Isolation resistance
Between power terminal and ground terminal: 10M or greater at 500V DC
Dielectric strength
Between power terminal and ground terminal: 1.5kV AC for 1 minute
Others
Power consumption : Approx. 5VA
Ambient temperature : 0 to 50
Ambient humidity : 35 to 85%RH (Non-condensing)
Weight : Approx. 300g
Accessories : Instruction manual 1 copy
Terminal cover (when option TC is added) 2 pieces
10.2 Optional specifications
Terminal cover [TC]
Electric shock protection terminal cover
49
11. Troubleshooting
If any malfunctions occur, check if the power is supplied to the PLC, CIT-200 and C series. If the power is supplied to them, a green power indicator (POWER) lights up.
Check the following and C series “12. Troubleshooting” when they do not work even if the indicator lights up.
Warning
Turn the power supplied to the instrument OFF before wiring or checking.
Working with the power switched ON may result in severe injury or death due to
Electric Shock. n Problem: Communication is impossible.
Presumed cause Solution
• The disconnection of communication cable or imperfect contact between the cable and terminal
• Setup of the CIT-200 is mistaken.
• Setup of the CPT-20A is mistaken.
• The wiring of communication cable is not correct.
• Setup of the PLC is not correct.
• Initial setting of the PLC is not correct.
Change the cable, or fasten the screw of the terminal securely.
Refer to pages 9 and 10.
Refer to pages 9 and 10.
Wire it properly. (pp.13 to 17)
Setup of Mitsubishi PLC: pp. 17 to 19
Setup of Omron PLC : pp. 34
Setup of Fuji PLC : pp. 41
Initial setting of Mitsubishi PLC : pp. 20
Initial setting of Omron PLC : pp. 34 to 40
Initial setting of Fuji PLC : pp. 42 to 47
• When using the communication line RS-422A, terminators are not connected at the end of the
PLC unit.
Connect terminators, referring to the instruction manual for each PLC.
If any unexplained malfunctions occur other than the above mentioned, make inquiries at our agency or the shop where you purchased the unit.
50
51
******* Inquiry *******
For any inquiry about this unit, please contact the shop where you purchased or our agency after
checking the following.
• Model name ··························· CIT-200
• Option ···································· TC
• Instrument number ················· No.XXXXXX
In addition to the above, please let us know the details of malfunction, if any, and the operating
conditions.
Reg. Office
Mail Address
URL
:
:
SHINKO TECHNOS CO.,LTD.
OVERSEAS DIVISION
2-48, 1-Chome, Ina, Minoo, Osaka, Japan
:
:
P.O.Box 17, Minoo, Osaka, Japan http://www.shinko-technos.co.jp
Tel :
Fax:
81-72-721-2781
81-72-724-1760
No.CIT21E2 2004.01
52
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