Mitsubishi Electric GOT2000 Series Connection Manual page 253

■6. RS-422/485 cable 6)
*3
GOT side (terminal block)
SDA
SDB
RDA
RDB
SG
*5
RSA
*5
RSB
*5
CSA
*5
CSB
*1 The actual terminal layout on the MODBUS
B(+/-) terminals can be separated from each other. Make sure to connect the cables and wires as described in the MODBUS
RTU equipment manual.
*2 Some MODBUS
*3 When placing the GOT to the terminal in the system configuration, set the terminating resistor to "Enable" (For GT21, "330Ω") .
When placing the GOT to the position other than the terminal, set the terminating resistor of the GOT to "Disable" (For GT21,
"OPEN" ) .
➠
*4 For the terminating resistor of MODBUS
*5 The signals RSA, RSB, CSA, and CSB are not provided for
■7. RS-422/485 cable 7)
*3
GOT side (terminal block)
SDA
SDB
RDA
RDB
SG
*5
RSA
*5
RSB
*5
CSA
*5
CSB
*1 The actual terminal layout on the MODBUS
B(+/-) terminals can be separated from each other. Make sure to connect the cables and wires as described in the MODBUS
RTU equipment manual.
*2 Some MODBUS
*3 When placing the GOT to the terminal in the system configuration, set the terminating resistor to "Enable" (For GT21, "110Ω") .
When placing the GOT to the position other than the terminal, set the terminating resistor of the GOT to "Disable" (For GT21,
"OPEN" ) .
➠
*4 For the terminating resistor of MODBUS
*5 The signals RSA, RSB, CSA, and CSB are not provided for
Return connection is not required.
MODBUS
®
/RTU equipment doesn't have SG. In this case, the wiring between GOT and SG is unnecessary.
1.4.3 Terminating resistors of GOT
®
MODBUS
®
/RTU equipment doesn't have SG. In this case, the wiring between GOT and SG is unnecessary.
1.4.3 Terminating resistors of GOT
®
® *1*2*4
/RTU equipment side
(1st)
RDA(+)
RDB(-)
SDA(+)
SDB(-)
SG
®
/RTU equipment may differ from the example shown above. SDA/B(+/-) and RDA/
/RTU equipment, refer to the manual of MODBUS
.
® *1*2*4
/RTU equipment side
(1st)
(+)
(-)
SG
®
/RTU equipment may differ from the example shown above. SDA/B(+/-) and RDA/
/RTU equipment, refer to the manual of MODBUS
.
5.3 Connection Diagram
® *1*2*4
MODBUS /RTU equipment side
(2nd)
RDA(+)
RDB(-)
SDA(+)
SDB(-)
SG
®
/RTU equipment to be used.
® *1*2*4
MODBUS /RTU equipment side
(2nd)
(+)
(-)
SG
®
/RTU equipment to be used.
5
®
/
®
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