Mitsubishi Electric GOT2000 Series Connection Manual page 352

(10) RS-485 connection diagram 10)
*1
*2
(11) RS-485 connection diagram 11)
*1
*2
9 - 46
9.3 Connection Diagram
GOT side
(terminal block)
SDA1 (TXD1+)
6
SDB1 (TXD1-)
8
SG
2
RDA1
10
RDB1
12
SDA2
5
SDB2
7
RSA
14
RSB
16
CSA
18
CSB
20
NC
1
NC
3
NC
4
RDA2
9
RDB2
11
NC
13
NC
15
NC
17
NC
19
Set the terminating resistor setting switch of the GOT main unit to "100 OHM".
➠
■3. Connecting terminating resistors
For details of the pin assignment, refer to the following manual.
➠
User's Manual of the RKC temperature controller
* 1
GOT side
SDA
SDB
RDA
RDB
SG
Set the 2-wire type ←→ 4-wire type/terminating resistor setting switch of the RS-232/485 signal conversion adapter as follows.
2-wire type ←→ 4-wire type: 2-wire type (1 pair)
Terminating resistor: 110Ω
➠
1.4.4 Setting the RS-232/485 signal conversion adaptor
For details of the pin assignment, refer to the following manual.
➠
User's Manual of the RKC temperature controller
* 1
RKC temperature controller side
(Modular connector)
RKC temperature controller side
(Modular connector)
T/R(B)
T/R(A)
NC
NC
SG
SG
* 2
T/R(B)
2
T/R(A)
1
SG
3
NC
4
NC
5
SG
6
* 2