User`s manual
3-18
3.6 Connection
INP-TN5A0202-E
Warning
Connect/separate PUM series, Temperature control system to/from PLC after turning OFF the power of the equipment or
peripheral equipments to prevent electric shock and equipment failure.
The communication speed and the maximum transmission distance are shown as below.
The communication speed and the maximum transmission distance
Communication speed setting 9.6kbps 19.2kbps 38.4kbps 57.6kbps 115.2kbps 230.4kbps
Communication
distance
RS-422/RS-485 Max. 1km Max. 500m Max. 250m
RS-232C Max. 15m
*Refer to “5.3 PLC communication setting” for details about communication speed .
5-11
Setting of MELSEC-Q series
The communication setting below is necessary to connect a programless communication module and PLC.
Start GX-Developer, double click “parameter” – “PC parameter” in the project tree, and then select “I/O allocation setting”. Click
“switch setting” and set the communication port of the MELSEC-Q series (serial communication unit) used as the table below.
CH SW No. Bit position Contents OFF ON Set value
CH1
SW1
b0
Transmission setting
Behavior setting
Independence
Linkage *1
b1 Data bit 7 8 ON (fi xed)
b2 Parity bit No Yes *1
b3 Odd/Even parity Odd Even *1
b4 Stop bit 1 2 *1
b5 Sum check code No Yes ON (fi xed)
b6 Write during RUN Forbidden Permitted ON (fi xed)
b7 Setting change Forbidden Permitted ON (fi xed)
b8 – b15 Communication speed setting — — *2
SW2 — CH1 communication protocol setting — — 5 (fi xed)
CH2
SW3
b0
Transmission setting
Behavior setting
Independence
Linkage *1
b1 Data bit 7 8 ON (fi xed)
b2 Parity bit No Yes *1
b3 Odd/Even parity Odd Even *1
b4 Stop bit 1 2 *1
b5 Sum check code No Yes ON (fi xed)
b6 Write during RUN Forbidden Permitted ON (fi xed)
b7 Setting change Forbidden Permitted ON (fi xed)
b8 – b15 Communication speed setting — — *2
SW4 — CH2 communication protocol setting — — 5 (fi xed)
Common
CH
SW5 — Station No. confi guration — — 0 (fi xed)
*1…Set this as same as “PLC transmission setting” parameters
5-12
of a programless communication module.
*2… Set this as same as “PLC communication speed setting” parameters
5-11
of a programless communication
module.
PointPoint