Rs485 Terminal Arrangement And Connection - Omron MX2 Series User Manual

8 Communications Functions
8-2 RS485 Terminal Arrangement and
Connection
The communications terminals are arranged as follows.
EA 7 6 5 4
SP SN H O OI
RS485 terminal
3G3MX2 (No.1)
*1. If the communications are unstable, install a terminating resistor appropriate to the impedance of the cable to
each cable end. The resistance of the terminating resistor built into this inverter is 120 .
8 - 4
3 2 1 L PLC P24 P24S
L EO AM CM2 12 11
SP SN
SP SN
(No.2)
120 
SN
SP
Multi-function Compact Inverter 3G3MX2-EV2 User's Manual (I666-E1)
USB port is for computer
use only. RS422 (RJ45
modular connector) port
is for Digital Operator
use only.
Terminating resistor
selector switch
ON
OFF
(Factory default)
*1
SP SN
120 
3G3MX2 (No.n)