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4. CONTROL UNIT CONNECTIONS
4.11 Connecting Other Peripheral Devices
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4.11 Connecting Other Peripheral Devices
When connecting the MELSEC PLC peripheral devices using the RS-422 interface, connect to the
GPP connector side of the F311 relay cable connected to the SIO connector.
When connecting using the RS-232C interface, use the cables indicated below and connect to the
connector terminal. In this case, the general-purpose RS-232C port can be used together.
RS-232C/RS-422 (for GPP)
relay
General-purpose RS-232C device
connection connector
Cabinet side wall
TERMINAL
F311 cable
SIO
LED1
Control unit
RS-232C
GPP
Conversion cable
(F313/F314)
RS-422 cable
GOT
Personal
computer
(GX Developer)
RS-422/RS-232C
conversion cable
Personal
computer
(GX Developer)
GOT
RS-232C cable (F316)
RS-232C cable
(F315)
Only one
can be used
(1)
(2)
(3)
(4)
(5)
Cable specifications are as described below.
(1) RS-422/RS-232C Conversion cable
DAFXIH-CABV (Diatrend Corp.), SC-09 (MEAU)
(2) RS-422 cable
Cable for GOT (MELSEC) AC30R4-25P (3.0m), AC100R4-25P (10.0m),
AC300R4-25P (30.0m)
(3) Conversion cable (F313/F314)
(a) F313 (For personal computer)
NC side (TERMINAL)
(20pin half-pitch)
PC side
(25pin D-SUB)
Signal Pin No.
Cable connection & Signal direction
Pin No. Signal
TXD 6 2 TXD
RXD 16 3 RXD
DTR 18 20 DTR
GND 1
7 GND
[NC side connector (Recommended)]
Connector
：10120-3000VE (Sumitomo 3M)
Case
：10320-52F0-008 (Sumitomo 3M)
[PC side connector (Recommended)]
Connector
：HDBB-25S (Hirose Electric)
Case
：HDB-CTF (Hirose Electric)