Specifications

13 - 8
13. CONNECTION TO MITSUBISHI INDIA PLC
13.3 Connection Diagram
13.3.3 RS-485 cable
The following diagram shows the connection between the GOT and the PLC.
(1) RS-485 connection diagram 1)
*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
*2 For terminating resistors in PLCs manufactured by MITSUBISHI INDIA, refer to the manual of PLCs manufactured by
MITSUBISHI INDIA.
(2) RS-485 connection diagram 2)
*1 Set the terminating resistor to “110 Ω” when arranging the GOT in the end position of the system configuration.
Set the terminating resistor to “OPEN” when arranging the GOT in any position other than the end position of the system
configuration. 1.4.3 Terminating resistors of GOT
*2 For terminating resistors in PLCs manufactured by MITSUBISHI INDIA, refer to the manual of PLCs manufactured by
MITSUBISHI INDIA.
MITSUBISHI INDIA
PLC side
*2
MITSUBISHI INDIA
PLC side
*2
CON side (20 pin)
*1
SG
NC
NC
NC
SDA2(TXD2+)
SDB2(TXD2-)
RDA2(RXD2+)
RDB2(RXD2-)
NC
RSA(RTS+)
NC
RSB(RTS-)
NC
CSA(CTS+)
NC
CSB(CTS-)
SDA1(TXD1+)
SDB1(TXD1-)
RDA1(RXD1+)
RDB1(RXD1-)
6
8
10
12
2
1
3
4
5
7
9
11
13
14
15
16
17
18
19
20
*1
R
Tx +
Tx –
Rx +
Rx –
GND
4
7
9
8
5
Tx +
Tx –
Rx +
Rx –
GND
GOT side (D-sub 9 pin)
*1
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
1
6
2
7
5
3
8
4
9
4
7
9
8
5
Tx +
Tx –
Rx +
Rx –
GND
MITSUBISHI INDIA
PLC side
*2
MITSUBISHI INDIA
PLC side
*2
4
7
9
8
5
Tx +
Tx –
Rx +
Rx –
GND