Panasonic KT7 User manual

1
COMMUNICATION INSTRUCTION MANUAL TEMPERATURE CONTROLLER KT7
No. KTC2E8 2013.05
To prevent accidents arising from the misuse of this controller, please ensure the operator receives this manual.
For this product to which communication function has been added, “1” is entered after the heater burnout
alarm indication in the model number.
(For the model number and basic operation, refer to the instruction manual for KT7.)
Warning
Turn the power supply to the instrument off before wiring or checking it.
Working or touching the terminal with the power switched on may result in severe injury or
death due to Electric Shock.
1. Setup of the KT7
Set the items “Communication protocol selection”, “Instrument number setting”, “Communication speed
selection” “Parity selection” and “Stop bit selection” after the “Sensor correction setting” in the Auxiliary
function setting mode 1.
To enter Auxiliary function setting mode 1, press the key for 3 seconds while holding down the
key.
Character
(PV display) Name, Functions and Setting range Default (SV display)
Communication protocol selection Modbus ASCII
• Selects the Communication protocol.
• Modbus ASCII mode:
Modbus RTU mode: : Not available.
Instrument number setting 0
• Sets individual instrument number for each unit when communicating by
connecting plural controllers in serial communication.
Up to 31 units can be connected, however, the instrument number can be set
within the range 0 to 95.
• 0 to 95
Communication speed selection 9600bps
• Selects a communication speed to correspond to that of host computer.
• 2400bps: , 4800bps: , 9600bps: , 19200bps:
Parity selection Even
• Selects the parity.
• No parity: , Even parity: , Odd parity:
Stop bit selection 1
• Selects the stop bit.
• 1 or 2
2. Terminal arrangement
OUT : Control output
RELAY: Relay contact output
V/A : DC voltage output /DC current
output
EVT : Event output
[Outputs when Alarm, Loop
break alarm or Heater burnout
alarm (option) is on]
TC : Thermocouple
RTD : Resistance Temperature Detector
DC : DC current or DC voltage
(Fig. 2-1) RS-485: Serial communication
Modular plug applicable to the modular jack of KT7 with communication function is RJ-11 (6-pin type).
Recommended model: TM20P-66P (Hirose Electric CO.,LTD.) (Applicable cable diameter: ø0.4 to 0.65mm)
For the communication cable, two twisted 2-core cables or one twisted 3-core cable is recommended.
When using one twisted 3-core cable, use either pin 1 or pin 6 for SG of the plug.
№1
№2
№3
№4
№5
№6
SG
NC
YB(＋)
YA(－)
NC
SG

2
3. System configuration
RS-485 multi-drop connection communication
(Fig. 3-1)
(Fig. 3-2)
(Fig. 3-3)
4. Wiring
When using communication converter RS-232C
• Connector: D-sub 25-pin
Connection: RS-232C RS-485 (Communication speed: 2400, 4800, 9600, 19200bps)
Connect Terminals 1 and 6 to COM.
Connect Terminal 3 to YB (+).
Connect Terminal 4 to YA (-).
(Fig. 4-1)
Host computer
RS-485
No.0 No.1 No.2 No.30
KT7 KT7 KT7 KT7
RS-485
Host computer
RS-232C
Communication
converter
232C 485
No.0 No.1 No.30
KT7 KT7 KT7
PLC
RS-485
No.0 No.1 No.2 No.30
KT7 KT7 KT7 KT7
Use a RJ-11 type modular plug when
connecting to the cable.
KT7
Host computer
D-sub 25-pin connector
Communication cable
Shielded
wire
4
3
1, 6

3
• Connector: D-sub 9-pin
Connection: RS-232C RS-485 (Communication speed: 2400, 4800, 9600, 19200bps)
Connect Terminals 1 and 6 to COM.
Connect Terminal 3 to YB (+).
(Fig. 4-2) Connect Terminal 4 to YA (-).
•When connecting with PLC (RS-485)
Connection: RS-485 RS-485 (Communication speed: 2400, 4800, 9600, 19200bps)
Connect terminal 3 to YB (+)
(Fig. 4-3) Connect terminal 4 to YA (-)
Shielded wire
Connect only one side of the shielded wire to the FG or GND terminal so that current cannot flow to
the shielded wire. (If both sides of the shielded wire are connected to the FG or GND terminal, the
circuit will be closed between the shielded wire and the ground. As a result, current will run through
the shielded wire and this may cause noise.) Be sure to ground FG and GND terminals.
Terminator (Terminal resistor)
Do not connect terminator with the communication line because each KT7 has built-in pull-up and
pull-down resistors instead of a terminator.
If there is a large distance between the PLC and the KT7, connect the terminator on the PLC side.
(Connect a terminator of 120 or more resistance.)
Setup of the KT7
•It is necessary to set the instrument number individually to the KT7 when communicating by
connecting plural units in serial communication.
Select a communication speed for the KT7 in accordance with that of the host computer.
•Refer to Chapter 1 “Setup of the KT7” for instrument number setting and communication speed
selection.
Memory life of the KT7
The memory can contain up to 1,000,000 (one million) set value entries.
This memory life is sufficient when the set value is changed by keypad operation.
However, when changing the set value frequently via the communication function, be careful not to
exceed the 1,000,000 (one million) cycles limit.
Use a RJ-11 type modular plug when
connecting to the cable
.
Use a RJ-11 type modular plug when
connecting to the cable
.
Communication cable
Shielded
wire
Host computer
D-sub 9-pin connector
FG
KT7
Communication cable
KT7
4
3
1, 6
4
3

4
When Lock 1 or Lock 2 is used, every time the set value is changed by the communication function,
the changed value is written in the non-volatile memory. If the value changed by the
communication function is the same as previous one, it is not written in the non-volatile memory.
When Lock 3 is used and if the set value is changed, the changed value is not written in the
non-volatile memory until the power to the controller is turned off. This has no relation to the limit
for changes in set value.
Therefore, be sure to use Lock 3 when changing the set value frequently via communication.
5. Communication procedure
Communication starts with command transmission from the host computer (hereafter Master) and ends
with the response of the KT7 (hereafter Slave).
• Response with data
When the master sends the reading command, the slave
responds with the corresponding set value or current
action status.
• Acknowledgement
When the master sends the setting command, the slave
responds by sending an acknowledgement after the
processing is terminated.
• Negative acknowledgement
When the master sends non-existent command or value
out of the setting range, the slave returns a negative
acknowledgement.
• No response
The slave will not respond to the master when broadcast
address is set, or when there is a communication error
(framing error or parity error), or when LRC or CRC
(Fig.5-1) discrepancy is detected.
Communication timing of the RS-485
Slave side
When a slave starts transmission through RS-485 communication line, the slave is arranged so as
to provide an idle status (mark status) transmission period of 1 or more characters before
sending the response to ensure the synchronization on the receiving side.
The slave is arranged so as to disconnect the transmitter from the communication line within a
1 character transmission period after sending the response.
Master side (Notice on setting a program)
Set the program so that the master can disconnect the transmitter from the communication line
within a 1 character transmission period after sending the command in preparation for reception
of the response from the slave.
To avoid the collision of transmissions between the master and the slave, send the next command
after carefully checking that the master received the response.
6. Modbus protocol
6.1 Modbus protocol
Modbus protocol is a communication protocol for the PLC developed by Modicon Inc.
6.2 Transmission mode
There are 2 transmission modes (ASCII and RTU) in Modbus protocol.
6.3 ASCII mode
Hexadecimal (0 to 9, A to F), which is divided into high order (4-bit) and low order (4-bit) out of 8-bit
binary data in command is transmitted as ASCII characters.
Data format Start bit : 1 bit
Data bit : 7 bits
Parity : Even/No/Odd (Selectable)
Stop bit : 1 bit/2 bits (Selectable)
Error detection: LRC (Longitudinal Redundancy Check)
Data interval : 1 second or less
(1) Message configuration
ASCII mode message is configured to start by [: (colon)(3AH)] and end by [CR (carriage return)
(0DH) + LF (Line feed)(0AH)]. (See Fig. 6.3-1)
(Fig. 6.3-1)
Slave
address Function code Data Error check LRC Delimiter (CR)
Header
(:) Delimiter (LF)
Command
Data
Command
Acknowledgement
Command
Negative
acknowledgement
Command
No response
Master Slave

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(2) Slave address
Slave address is an individual instrument number on the slave side and is set within the range
00H to 5FH (0 to 95).
The master identifies slaves by the slave address of the requested message.
The slave informs the master which slave is responding to the master by placing its own address in
the response message.
[Slave address 00H (broadcast address) can identify all the slaves. However slaves do not respond.]
(3) Function code
The functioncode is the commandcodefor the slave to undertake the followingaction types (Table 6.3-1).
(Table 6.3-1)
Function code Contents
03 (03H) Reading the set value and information from slaves
06 (06H) Setting to slaves
Function code is used to discern whether the response is normal (acknowledgement) or if any error
(negative acknowledgement) is occurred when the slave returns the response message to the master.
When acknowledgement is returned, the slave simply returns the original function code.
When negative acknowledgement is returned, the MSB of the original function code is set as 1 for
the response.
(For example, when the master sends request message setting 10H to function code by mistake,
slave returns 90H by setting the MSB to 1, because the former is an illegal function.)
For negative acknowledgement, exception code (Table 6.3-2) below is set to the data of response
message and returned to the master in order to inform it that what kind of error has occurred.
(Table 6.3-2)
Exception code Contents
1 (01H) Illegal function (Non-existent function)
2 (02H) Illegal data address (Non-existent data address)
3 (03H) Illegal data value (Value out of the setting range)
17 (11H) Illegal setting (Unsettable status)
18 (12H) Illegal setting (During setting mode by keypad operation, etc)
(4) Data
Data differs depending on the function code.
A request message from the master is composed of data item, number of data and setting data.
A response message from the slave is composed of number of bytes, data and exception code
in negative acknowledgement. Effective range of data is –32768 to 32767 (8000H to 7FFFH).
(5) Error check of ASCII mode
After calculating LRC (Longitudinal Redundancy Check) from the slave address to the end of
data, the calculated 8-bit data is converted to two ASCII characters and are appended to the
end of message.
How LRC is calculated
1Create a message in RTU mode.
2Add all the values from the slave address to the end of data. This is assumed as X.
3Make a complement for X (bit reverse). This is assumed as X.
4Add a value of 1 to X. This is assumed as X.
5Set X as an LRC to the end of the message.
6Convert the whole message toASCII characters.
(6) Message example of ASCII mode
1Reading (Instrument number 1, SV)
• A request message from the master
(Fig. 6.3-2)
The number of data means the data item to be read, and it is fixed as (30H 30H 30H 31H).
• Response message from the slave in normal status (When SV=100 )
(Fig.6.3-3)
The number of response bytes means the number of bytes of the data which has been read,
and it is fixed as (30H 32H).
Slave
address Function code Data item Error check LRC DelimiterHeader
(30H 31H)
Number of
data
(3AH)
1 2 2 4 4 2 2
(30H 33H) (30H 30H 30H 31H) (30H 30H 30H 31H) (46H 41H) (0DH 0AH) Number of
characters
Slave
address Function code Number of
response bytes Error check
LRC DelimiterHeader Data
1 2 2 2 4 2 2
(3AH) (30H 31H) (30H 33H) (30H 32H) (30H 30H 36H 34H) (39H 36H) (0DH 0AH) Number of
characters

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• Response message from the slave in exception (error) status (When non-existent data item
is sent)
(Fig. 6.3-4)
The function code MSB is set to 1 for the response message in exception (error) status (83H).
The exception code (02H: Non-existent data address) is returned.
2Setting (Instrument number 1, SV=100 )
• A request message from the master
(Fig. 6.3-5)
• Response message from the slave in normal status
(Fig. 6.3-6)
• Response message from the slave in exception (error) status (When a value out of the setting
range is set.)
(Fig. 6.3-7)
The function code MSB is set to 1 for the response message in exception (error) status (86H).
The exception code (03H: Value out of the setting range) is returned.
6.4 RTU mode
8-bit binary data in command is transmitted as it is.
Data format Start bit : 1 bit
Data bit : 8 bits
Parity : Even/No/Odd (Selectable)
Stop bit : 1 bit/2 bits (Selectable)
Error detection: CRC-16 (Cyclic Redundancy Check)
Data interval : 3.5 characters transmission time or less
(1) Message configuration
RTU mode is configured to start after idle time is processed for more than 3.5 character transmission
and end after idle time is processed for more than 3.5 character transmission. (See Fig. 6.4-1)
(Fig. 6.4-1)
(2) Slave address
Slave address is an individual instrument number on the slave side and is set within the range
00H to 5FH (0 to 95).
The master identifies slaves by the slave address of the requested message.
The slave informs the master which slave is responding to the master by placing its own address in
the response message.
[Slave address 00H (broadcast address) can identify all the slaves. However slaves do not respond.]
(3) Function code
The functioncode is the commandcodefor the slave to undertake the following action types (Table
6.4-1).
(Table 6.4-1)
Function code Contents
03 (03H) Reading the set value and information from slaves
06 (06H) Setting to slaves
3.5 idle
characters Slave
address Function code Data Error check CRC 3.5 idle
characters
(0DH 0AH)
Slave
address Function code Exception code Error check LRC DelimiterHeader
1 2 2 2 2 2 Number of
characters
(3AH) (30H 31H) (38H 33H) (30H 32H) (37H 41H)
Slave
address Function code Data item Error check LRC DelimiterHeader
(30H 31H)
Data
(3AH)
1 2 2 4 4 2 2 Number of
characters
(30H 36H) (30H 30H 30H 31H)(30H 30H 36H 34H) (39H 34H) (0DH 0AH)
Slave
address Function code Data item Error check LRC DelimiterHeader Data
1 2 2 4 4 2 2 Number of characters
(3AH) (30H 31H) (30H 36H) (30H 30H 30H 31H)(30H 30H 36H 34H) (39H 34H) (0DH 0AH)
Slave
address Function code Exception code Error check LRC DelimiterHeader
2Number of
characters
2
2221
(3AH) (30H 31H) (38H 36H) (30H 33H) (37H 36H) (0DH 0AH)

7
Function code is used to discern whether the response is normal (acknowledgement) or if any error
(negative acknowledgement) is occurred when the slave returns the response message to the master.
When acknowledgement is returned, the slave simply returns the original function code.
When negative acknowledgement is returned, the MSB of the original function code is set as 1 for
the response.
(For example, when the master sends request message setting 10H to function code by mistake,
slave returns 90H by setting the MSB to 1, because the former is an illegal function.)
For negative acknowledgement, exception code (Table 6.4-2) below is set to the data of response
message and returned to the master in order to inform it that what kind of error has occurred.
(Table 6.4-2)
Exception code Contents
1 (01H) Illegal function (Non-existent function)
2 (02H) Illegal data address (Non-existent data address)
3 (03H) Illegal data value (Value out of the setting range)
17 (11H) Illegal setting (Unsettable status)
18 (12H) Illegal setting (During setting mode by keypad operation, etc)
(4) Data
Data differs depending on the function code.
A request message from the master side is composed of data item, number of data and setting data.
A response message from the slave side is composed of number of bytes, data and exception code
in negative acknowledgement. Effective range of data is –32768 to 32767 (8000H to 7FFFH).
(5) Error check of RTU mode
After calculating CRC-16 (Cyclic Redundancy Check) from the slave address to the end of data, the
calculated 16-bit data is appended to the end of message in sequence from low order to high order.
How CRC is calculated
In the CRC system, the information is divided by the polynomial series. The remainder is added to
the end of the information and transmitted. The generation of the polynomial series is as follows.
(Generation of the polynomial series: X16 + X15 + X2+ 1)
1Initialize the CRC-16 data (assumed as X) (FFFFH).
2Calculate exclusive OR (XOR) with the 1st data and X. This is assumed as X.
3Shift X one bit to the right. This is assumed as X.
4When a carry is generated as a result of the shift, XOR is calculated by X of 3and the fixed
value (A001H). This is assumed as X.
If a carry is not generated, go to step 5.
5Repeat steps 3and 4until shifting 8 times.
6XOR is calculated with the next data and X. This is assumed as X.
7Repeat steps 3to 5.
8Repeat steps 3to 5up to the last data.
9Set X as CRC-16 to the end of message in sequence from low order to high order.
(6) Message example of RTU mode
1Reading (Instrument number 1, SV)
• A request message from the master
(Fig. 6.4-2)
The number of data means the data item to be read, and it is fixed as 0001H.
• Response message from the slave in normal status (When SV=100 )
(Fig. 6.4-3)
The number of response bytes means the number of bytes of the data which has been read,
and it is fixed as 02H.
3.5 idle
characters Slave
address Function code Data item Error check CRC 3.5 idle
characters
(01H) (03H) (0001H)
Number of
data
(0001H) (D5CAH)
1 1 2 2 2 Number of
characters
3.5 idle
characters Slave
address Function code Number of
response bytes Error check
CRC 3.5 idle
characters
(01H) (03H) (02H)
Data
(0064H) (B9AFH)
1 1 1 2 2 Number of
characters

8
• Response message from the slave in exception (error) status (When non-existent data item is sent)
(Fig. 6.4-4)
The function code MSB is set to 1 for the response message in exception (error) status (83H).
The exception code (02H: Non-existent data address) is returned.
2Setting (Instrument number 1, SV=100 )
• A request message from the master
(Fig. 6.4-5)
• Response message from the slave in normal status
(Fig. 6.4-6)
• Response message from the slave in exception (error) status (When a value out of the setting
range is set)
(Fig. 6.4-7)
The function code MSB is set to 1 for the response message in exception (error) status (86H).
The exception code (03H: Value out of the setting range) is returned.
7. Communication command table
When the data (set value) has a decimal point, remove the decimal point and represent it as a
whole number, then express it in hexadecimal figures.
Modbus
function code Data item Data
03H/06H 0001H: SV Set value
03H/06H 0002H: Not used
03H/06H 0003H: AT/Auto-reset 0000H: Cancel 0001H: Perform
03H/06H 0004H: OUT proportional band Set value
03H/06H 0005H: Not used
03H/06H 0006H: Integral time Set value
03H/06H 0007H: Derivative time Set value
03H/06H 0008H: OUT proportional cycle Set value
03H/06H 0009H: Not used
03H/06H 000AH: Manual reset Set value
03H/06H 000BH: Alarm value Set value
03H/06H 000CH: Not used
03H/06H 000DH: Not used
03H/06H 000EH: Not used
03H/06H 000FH: HB (Heater burnout alarm) value Set value
03H/06H 0010H: LA (Loop break alarm) time Set value
03H/06H 0011H: LA (Loop break alarm) span Set value
03H/06H 0012H: Set value lock (*1) 0000H: Unlock 0002H: Lock 2
0001H: Lock 1 0003H: Lock 3
03H/06H 0013H: Not used
03H/06H 0014H: Not used
03H/06H 0015H: Sensor correction value Set value
03H/06H 0016H: Not used
03H/06H 0017H: Not used
3.5 idle
characters Slave
address Function code Exception code Error check CRC 3.5 idle
characters
(01H) (83H) (02H) (C0F1H)
1 1 1 2 Number of
characters
3.5 idle
characters Slave
address Function code Data item Error check CRC 3.5 idle
characters
(01H) (06H) (0001H)
Data
(0064H) (D9E1H)
1 1 2 2 2 Number of
characters
3.5 idle
characters Slave
address Function code Data item Error check CRC 3.5 idle
characters
(01H) (06H) (0001H)
Data
(0064H) (D9E1H)
1 1 2 2 2 Number of
characters
3.5 idle
characters Slave
address Function code Exception code Error check CRC 3.5 idle
characters
(01H) (86H) (03H) (0261H)
1 1 1 2 Number of
characters

9
03H/06H 0018H: Scaling high limit Set value
03H/06H 0019H: Scaling low limit Set value
03H/06H 001AH: Decimal point place 0000H: XXXX (No decimal point)
0001H: XXX.X (1 digit after decimal point)
0002H: XX.XX (2 digits after decimal point)
0003H: X.XXX (3 digits after decimal point)
03H/06H 001BH: PV filter time constant Set value
03H/06H 001CH: OUT high limit Set value
03H/06H 001DH: OUT low limit Set value
03H/06H 001EH: OUT ON/OFF action hysteresis Set value
03H/06H 001FH: Not used
03H/06H 0022H: Not used
03H/06H 0023H: Alarm type (*2) 0000H: No alarm action
0001H: High limit alarm
0002H: Low limit alarm
0003H: High/Low limits alarm
0004H: High/Low limit range alarm
0005H: Process high alarm
0006H: Process low alarm
0007H: High limit alarm with standby
0008H: Low limit alarm with standby
0009H: High/Low limits alarm with standby
03H/06H 0024H: Not used
03H/06H 0025H: Alarm hysteresis Set value
03H/06H 0026H: Not used
03H/06H 0027H: Not used
03H/06H 0028H: Not used
03H/06H 0029H: Alarm action delayed timer Set value
03H/06H 002AH: Not used
03H/06H 003FH: Not used
03H/06H 0040H: Alarm action Energized/
Deenergized 0000H: Energized 0001H: Deenergized
03H/06H 0041H: Not used
03H/06H 0042H: Alarm HOLD function 0000H: Alarm Not Holding
0001H: Alarm Holding
03H/06H 0043H: Not used
03H/06H 0044H: Input type 0000H: K [–200 to 1370 ]
0001H: K [–199.9 to 400.0 ]
0002H: J [–200 to 1000 ]
0003H: R [0 to 1760 ]
0004H: S [0 to 1760 ]
0005H: B [0 to 1820 ]
0006H: E [–200 to 800 ]
0007H: T [–199.9 to 400.0 ]
0008H: N [–200 to 1300 ]
0009H: PL- [0 to 1390 ]
000AH: C (W/Re5-26) [0 to 2315 ]
000BH: Pt100 [–199.9 to 850.0 ]
000CH: JPt100 [–199.9 to 500.0 ]
000DH: Pt100 [–200 to 850 ]
000EH: JPt100 [–200 to 500 ]
000FH: K [–320 to 2500 ]
0010H: K [–199.9 to 750.0 ]
0011H: J [–320 to 1800 ]
0012H: R [0 to 3200 ]
0013H: S [0 to 3200 ]
0014H: B [0 to 3300 ]
0015H: E [–320 to 1500 ]

10
0016H: T [–199.9 to 750.0 ]
0017H: N [–320 to 2300 ]
0018H: PL- [0 to 2500 ]
0019H: C (W/Re5-26) [0 to 4200 ]
001AH: Pt100 [–199.9 to 999.9 ]
001BH: JPt100 [–199.9 to 900.0 ]
001CH: Pt100 [–300 to 1500 ]
001DH: JPt100 [–300 to 900 ]
001EH: 4 to 20mA DC [–1999 to 9999]
001FH: 0 to 20mA DC [–1999 to 9999]
0020H: 0 to 1V DC [–1999 to 9999]
0021H: 0 to 5V DC [–1999 to 9999]
0022H: 1 to 5V DC [–1999 to 9999]
0023H: 0 to 10V DC [–1999 to 9999]
03H/06H 0045H: Direct/Reverse action 0000H: Heating (Reverse action)
0001H: Cooling (Direct action)
03H/06H 0046H: Not used
03H/06H 0047H: AT bias Set value
03H/06H 0048H: ARW (anti-reset windup) Set value
03H/06H 006FH: Key Lock 0000H: Key enabled 0001H: Key Lock
06H 0070H: Key operation change flag clearing 0000H: No action 0001H: All clearing
03H 0080H: PV reading Present PV (input value)
03H 0081H: MV reading Present MV (manipulated variable)
03H 0082H: Not used
03H 0083H: Not used
03H 0084H: Not used
03H 0085H: OUT status reading 0000 0000 0000 0000
215 to 20
20digit: OUT
0: OFF 1: ON
21digit: Not used (Always 0)
22digit: Alarm output
0: OFF 1: ON
23digit: Not used (Always 0)
24digit: Not used (Always 0)
25digit: Not used (Always 0)
26digit: HB (Heater burnout alarm) output
0: OFF 1: ON
(When sensor burnout, 0: OFF)
27digit: LA (Loop break alarm) output
0: OFF 1: ON
28digit: Overscale
0: OFF 1: ON
29digit: Underscale
0: OFF 1: ON
210 digit: Not used (Always 0)
211 digit: AT/Auto-reset
0: OFF 1: ON
212 digit: Not used (Always 0)
213 digit: Converter function
0: Controller
1: Converter
214 digit: Not used (Always 0)
215 digit: Key operation change
0: No 1: Yes
03H 0086H: Not used
03H 0087H: Not used
03H 00A0H: Not used

11
03H 00A1H: Instrument information reading 0000 0000 0000 0000
215 to 20
20digit: Not used (Always 0)
21digit: Not used (Always 0)
22digit: Alarm function
0: Not applied
1: Applied
23digit: Not used (Always 0)
24digit: Not used (Always 0)
25digit: Not used (Always 0)
26digit: HB (Heater burnout alarm)
0: Not applied
1: Applied
27digit: LA (Loop break alarm)
0: Not applied
1: Applied
28to 215 digit: Not used (Always 0)
(*1) When Lock 3 is designated, the set data is not saved in the memory.
This is why the set value reverts to the one before Lock 3 when power is turned OFF.
(*2) When alarm type is changed, the alarm set value reverts to the default value and
alarm output status is also initialized.
Notice
When data setting is changed by front keypad operation, the data that is related to the changed
item is also changed automatically as shown in Example 1 below.
However, when the data setting is changed by communication function, the related data does not
change as shown in Example 2 below. (Only the changed data is altered.)
(Example 1) SV high limit: 1370
SV : 1000
When SV high limit is changed to 800 by the front keypad operation, both SV high
limit and SV are changed to 800 .
(Example 2) SV high limit: 1370
SV : 1000
When SV high limit is changed to 800 by communication function, SV high limit is
changed to 800 , however, SV is maintained at the same temperature 1000 .
8. Specifications
Communication : Half-duplex
Cable length: Maximum communication distance 1000m
Cable resistance: Within 50 (Terminator is not necessary or
120 or more on the PLC side.)
Communication line : EIA RS-485
Connectable number of units: Maximum 31 units to 1 host computer
Communication speed : 2400, 4800, 9600, 19200bps (Selectable by keypad operation)
Synchronous system : Start-stop synchronous
Code form :ASCII, binary
Error detection: Parity check, Checksum (LRC, CRC)
Error correction : Command request repeat system
Data format Start bit : 1
Data bit : 7, 8
Parity : Even, Odd, No parity
Stop bit : 1

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9. Troubleshooting
If any malfunctions occur, refer to the following items after checking the power supply to the master
and the slave.
• Problem: Communication failure
Check the following
The connection or wiring of communication is not secure.
Burnout or imperfect contact on the communication cable and the connector.
Communication speed of the slave does not coincide with that of the master.
The data bit, parity and stop bit of the master do not accord with those of the slave.
The instrument number of the slave does not coincide with that of the command.
The instrument numbers are duplicated in multiple slaves.
When communicating without using communication converter, make sure that the program is
appropriate for the transmission timing.
•Problem: Although communication is occurring, the response is 'exception code'.
Check the following
Check that a non-existent command code has not been sent.
The setting command data exceeds the setting range of the slave.
The controller cannot be set when functions such asAT is performing.
The operation mode is under the front keypad operation setting mode.
For further inquiries, please consult our agency or the shop where you purchased the unit.
Panasonic Industrial Devices SUNX Co., Ltd.
http://panasonic.net/id/pidsx/global
Overseas Sales Division (Head Office)
2431-1 Ushiyama-cho, Kasugai-shi, Aichi, 486-0901, Japan
Phone: [phone] FAX: [phone]
About our sale network, please visit our website.
PRINTED IN JAPAN © Panasonic Industrial Devices SUNX Co., Ltd. 2012
Pursuant to the directive 2004/108/EC, article 9(2)
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Rudolf-Diesel-Ring 2 83607 Holzkirchen, Germany
This product has been developed / produced for industrial use only.