Mitsubishi Electric GOT 1000 Series, Connection Manual

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1. PREPARATORY PROCEDURES FOR MONITORING
1.4 Connection Cables for the Respective Connection
1.4.4 Setting the RS-232/485 signal conversion adaptor
Set the 2-wire/4-wire terminating resistor setting switch according to the connection type.
POINT POINT POINT
Enable the 5V power supply
Make sure to validate "Enable the 5V power supply" in the [RS232 Setting] to operate the RS-232/485 signal
conversion adaptor.
1.1.2 I/F communication setting
When validating the function using the utility function of the GOT main unit, refer to the following manual.
GT14 User's Manual 8.2 Utility Function List

Setting the 2-wire/4-wire terminating resistor setting switch
POINT POINT POINT
RS-232/485 signal conversion adapter
For details on the RS-232/485 signal conversion adapter, refer to the following manual.
GT14-RS2T4-9P RS-232/485 Signal Conversion Adapter User's Manual
2-wire/4-wire terminating resistor setting switch
1
O
2
N
3 4 5 6
Setting item Set value
Switch No.
1 2 3 4 5 6
2-wire/4-wire
2-wire (1Pair) ON ON - - - OFF
4-wire (2Pair) OFF OFF - - - OFF
Terminating resistor
110
- - ON OFF OFF OFF
OPEN - - OFF OFF OFF OFF
330 - - OFF ON ON OFF