Mitsubishi Electric GOT2000 Series Connection Manual page 424

13.3.2 RS-422 cable
The following diagram shows the connection between the GOT and the PLC.
■1. RS-422 connection diagram 1)
CON side (20 pin)
SDA1(TXD1+) *3
6
R SDB1(TXD1-) *3
8
*1
RDA1(RXD1+) *3
10
R RDB1(RXD1-) *3
12
*1
SG
2
NC
1
NC
3
NC
4
SDA2(TXD2+)
5
SDB2(TXD2-)
7
RDA2(RXD2+)
9
RDB2(RXD2-)
11
NC
13
RSA(RTS+)
14
NC
15
RSB(RTS-)
16
NC
17
CSA(CTS+)
18
NC
19
CSB(CTS-)
20
*1
*2
*3
■2. RS-422 connection diagram 2)
GOT side (D-sub 9 pin)
SDA
1
R
SDB
6
*1
RDA
2
R
RDB
7
*1-
SG
5
RSA
3
RSB
8
CSA
4
CSB
9
*1
*2
13 - 6
13.3 Connection Diagram
*1
A terminating resistor is required.
Set the terminating resistor selector switch in the main unit to "Disable", and connect a terminating resistor (110 Ω).
➠
1.4.3 Terminating resistors of GOT
For terminating resistors in PLCs manufactured by MITSUBISHI ELECTRIC INDIA, refer to the manual of PLCs manufactured by
MITSUBISHI ELECTRIC INDIA.
Use a twisted pair cable for the SDA1/SDB1.
*1
For GT27 and GT25 (except for GT2505-V), set the terminating resistor selector switch in the main unit to "Disable", and connect
a terminating resistor (330 Ω).
For GT2505-V, set the terminating resistor to "330 Ω".
➠
1.4.3 Terminating resistors of GOT
For terminating resistors in PLCs manufactured by MITSUBISHI ELECTRIC INDIA, refer to the manual of PLCs manufactured by
MITSUBISHI ELECTRIC INDIA.
MITSUBISHI ELECTRIC INDIA
*2
PLC side
Rx +
9
Rx –
8
Tx +
4
Tx –
7
GND
5
MITSUBISHI ELECTRIC INDIA
*2
PLC side
Rx +
9
Rx –
8
Tx +
4
Tx –
7
GND
5
MITSUBISHI ELECTRIC INDIA
*2
PLC side
Rx +
9
Rx –
8
Tx +
4
Tx –
7
GND
5
MITSUBISHI ELECTRIC INDIA
*2
PLC side
Rx +
9
Rx –
8
Tx +
4
Tx –
7
GND
5