Mitsubishi Electric GOT2000 Series Connection Manual page 286

(13) RS-485 connection diagram 13)
GOT side
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
3
CSA
4
RSB
8
CSB
9
FG
-
*1
*2
*3
(14) RS-485 connection diagram 14)
GOT side
SDA1
1
SDB1
2
RDA1
3
RDB1
4
SG
9
SDA2
5
SDB2
6
RDA2
7
RDB2
8
FG
10
*1
*2
*3
8 - 24
8.3 Connection Diagram
* 2
* 3
Terminating resistor having 100 Ω 1/2W should be provided for a temperature controller which will be a terminal.
For GT27 and GT25 (except for GT2505-V), set the terminating resistor to "Enable".
For GT2505-V, set the terminating resistor to "330 Ω".
➠ ■3.
Connecting terminating resistors
Connect FG grounding to the appropriate part of a cable shield line.
* 2
Terminating resistor should be provided for a temperature controller which will be a terminal.
Set the terminating resistor of GOT side which will be a terminal.
➠ ■3.
Connecting terminating resistors
Connect FG grounding to the appropriate part of a cable shield line.
Temperature controller
RX+
3
RX-
5
TX+
4
TX-
6
SG
2
* 3
Terminating resistor
Temperature controller
RX+
3
RX-
5
TX+
4
TX-
6
SG
2
* 3
Terminating resistor(100Ω 1/2W)
Temperature controller
RX+
3
RX-
5
TX+
4
TX-
6
SG
2
* 1
Temperature controller
RX+
3
RX-
5
TX+
4
TX-
6
SG
2
* 3
* 1