Mitsubishi Electric GOT1000 Series Connection Manual page 168

RS422 connection diagram 10)
GOT side
(terminal block)
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
RS422 connection diagram 11)
GOT side
(terminal block)
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
6 - 14
6. CONNECTION TO YASKAWA PLC
6.2 Serial Connection
YASKAWA PLC side
RX(+)
2
RX(-)
1
TX(+)
7
TX(-)
6
SG
8
NC
3
RXR(+)
4
TXR(+)
5
YASKAWA PLC side
RX+
3
RX-
4
TX+
1
TX-
2
GND
14
RX-
6
RXR
7
TX+
8
TX-
9
RX+
10
TXR
11
-
12
VCC
13
-
5
(2) Precautions when preparing a cable
(a) Cable length
The length of RS-422 cable 2) must be 300m or
less.
The maximum length of RS-422 cable 1) differs
according to the specifications of the YASKAWA
PLC side.
For details, refer to the YASKAWA PLC user's
manual.
(b) GOT side connector
For the GOT side connector, refer to the following.
1.4.1 GOT connector specifications
(c) YASKAWA PLC side connector
Use the connector compatible with the YASKAWA
PLC side module.
For details, refer to the YASKAWA PLC user's
manual.
(3) Connecting terminating resistors
(a) GOT side
When connecting a PLC to the GOT, a terminating
resistor must be connected to the GOT.
• For GT16, GT15, GT12
Set the terminating resistor setting switch of the
GOT main unit to "Disable".
• For GT14, GT11, GT10
Set the terminating resistor selector to "330 ".
For the procedure to set the terminating resistor,
refer to the following.
1.4.3 Terminating resistors of GOT
(b) YASKAWA PLC side
When connecting a YASKAWA PLC to a GOT,
connect a terminating resistor to the YASKAWA
PLC if required.
YASKAWA PLC user's Manual