Mitsubishi Electric GOT2000 Series Connection Manual page 169

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(8) RS485 connection diagram 8)
* 2
GOT side
SDA1(TXD1+)
6
SDB1(TXD1-)
8
RDA1(RXD1+)
10
RDB1(RXD1-)
12
SG
2
SDA2(TXD2+)
5
SDB2(TXD2-)
7
RSA(RTS+)
14
RSB(RTS-)
16
CSA(CTS+)
18
CSB(CTS-)
20
NC
1
NC
3
NC
4
RDA2(RXD2+)
9
RDB2(RXD2-)
11
NC
13
NC
15
NC
17
NC
19
*1
Terminating resistor should be provided for a temperature controller which will be a terminal.
*2
Set the terminating resistor of GOT as follows.
Set the terminating resistor setting switch of the GOT main unit to "100 OHM".
➠ ■3.
*3
Connect FG grounding to the single-sided end of a cable shield line.
(9) RS485 connection diagram 9)
* 2
GOT side
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
3
CSA
4
RSB
8
CSB
9
*1
Terminating resistor should be provided for a temperature controller which will be a terminal.
*2
Set the terminating resistor of GOT as follows.
For GT27 and GT25 (except for GT2505-V), set the terminating resistor to "Enable".
For GT2505-V and GT21, set the terminating resistor to "330 Ω".
➠ ■3.
*3
Connect FG grounding to the single-sided end of a cable shield line.
Temperature controller
terminal for RS-485 port1
RDA1
6
RDB1
7
SDA1
4
SDB1
5
SG1
8
* 3
Connecting terminating resistors
Temperature controller
terminal for RS-485 port1
RDA1
6
RDB1
7
SDA1
4
SDB1
5
SG1
8
* 3
Terminating resistor (150Ω 1/2W)
Connecting terminating resistors
Temperature controller
side
terminal for RS-485 port1
* 3
* 1
Terminating resistor (150Ω 1/2W)
Temperature controller
side
terminal for RS-485 port1
* 3
* 1
3.3 Connection Diagram
side
RDA1
6
RDB1
7
4
SDA1
SDB1
5
SG1
8
side
RDA1
6
RDB1
7
4
SDA1
SDB1
5
SG1
8
3 - 43
3

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