Mitsubishi Electric GOT1000 Series Connection Manual page 243


Precautions when preparing a cable
(1) Cable length
The length of the RS-422/485 cable must be 1200m or
less.
(2) GOT side connector
For the GOT side connector, refer to the following.
1.4.1 GOT connector specifications
®
(3) MODBUS /RTU equipment side connector
Use the connector compatible with the MODBUS
equipment side module.
For details, refer to the MODBUS equipment user's
manual.

Connecting terminating resistors
(1) GOT side
When connecting a MODBUS
GOT, a terminating resistor must be connected to the
GOT.
(a) For GT16 body, GT12, RS-422/485 communication
unit
Set the terminating resistor using the terminating
resistor setting switch.
(b) For GT14, GT11, GT10
Set the terminating resistor using the terminating
resistor selector.
For the procedure to set the terminating resistor, refer
to the following.
1.4.3 Terminating resistors of GOT
®
(2) MODBUS /RTU equipment side
When connecting a MODBUS
GOT, a terminating resistor must be connected to the
®
MODBUS /RTU equipment.
For details, refer to the MODBUS
user's manual.
®
/RTU
®
/RTU equipment to the
®
/RTU equipment to the
®
/RTU equipment
4. MODBUS(R)/RTU CONNECTION
4.3 Connection Diagram
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2
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4
5
6
7
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