Communication
FPΣ User's Manual
160
Communication modes
Communication mode 1:1 communication 1:N communication
MEWTOCOL-COM Master/Slave X —
Program controlled X —
PLC Link X
1)
Modbus RTU Master/Slave X —
1)
For RS232C connections, the maximum number of stations is 2.
8.2.3 FPG-COM2: 2-Channel RS232C Type
This communication cassette is a 2-channel unit with a three-wire RS232C port.
Communication with two external devices is possible.
Terminal layout
Pin Name Signal direction Port
S1
Send Data 1
PLC → External device
R1
Receive Data 1
PLC ← External device
COM 1
S2
Send Data 2
PLC → External device
R2
Receive Data 2
PLC ← External device
COM 2
SG
Signal Ground — COM 1
COM 2
Communication modes
Communication mode 1:1 communication 1:N communication
MEWTOCOL-COM Master/Slave X —
Program controlled X —
PLC Link X
1)
Modbus RTU Master/Slave X —
1)
• PLC Link is only available for COM port 1.
• For RS232C connections, the maximum number of stations is 2.
8.2.4 FPG-COM3: 1-Channel RS485 Type
This communication cassette is a 1-channel unit with a two-wire RS485 port.
Terminal layout
Pin Name Signal direction Port
+
Transmission line (+) —
-
Transmission line (-) —
+
Transmission line (+) —
-
Transmission line (-) —
E
Bus termination —
COM 1
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