Rs-485 Cable - Mitsubishi Electric GOT2000 Series Connection Manual

13.3.3 RS-485 cable

The following diagram shows the connection between the GOT and the PLC.
(1) RS-485 connection diagram 1)
CON side (20 pin)
SDA1(TXD1+)
6
SDB1(TXD1-)
8
RDA1(RXD1+)
10
R
RDB1(RXD1-)
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 A terminating resistor is required.
Set the terminating resistor selector switch in the main unit to "Disable", and connect a terminating resistor (110 Ω).
*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)
GOT side (D-sub 9 pin)
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
3
RSB
8
CSA
4
CSB
9
*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.
*2 For terminating resistors in PLCs manufactured by MITSUBISHI INDIA, refer to the manual of PLCs manufactured by
MITSUBISHI INDIA.
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13. CONNECTION TO MITSUBISHI INDIA PLC
13.3 Connection Diagram
*1
1.4.3 Terminating resistors of GOT
*1
1.4.3 Terminating resistors of GOT
MITSUBISHI INDIA
*2
PLC side
Tx +
4
Tx –
7
Rx +
9
Rx –
8
GND
5
MITSUBISHI INDIA
*2
PLC side
Tx +
4
Tx –
7
Rx +
9
Rx –
8
GND
5
MITSUBISHI INDIA
*2
PLC side
Tx +
4
Tx –
7
Rx +
9
Rx –
8
GND
MITSUBISHI INDIA
*2
PLC side
Tx +
4
Tx –
7
Rx +
9
Rx –
8
GND
5