Channel Operation In Stand-Alone Mode - LG GLOFA-GM Series User Manual

Chapter 4 Performance specification

4.1.2 Channel operation in stand-alone mode

In stand-alone mode, channels RS-232C and RS-422 are operated independently to allow simultaneous Tx / Rx in
separate transmission specifications. Therefore, transmission specifications can be set per RS-232C and RS-422
channel, and the operation is started/stopped according to channels. Data flow of each channel in stand-alone mode
is as below.
[Figure 4.2] Data flow in stand-alone mode
PLC cpu
Remark
[Note1] Mode change during operation is unavailable. The mode switch value of the front shall be set to required
position surely after power off.
[Note2] Each operation per channel shall be started surely after setting transmission spec. of channels RS-232C
and RS-422 and writing for each channel of RS-232C and RS-422 in Frame Editor.
RS-232C channel
TX
RX
RS-422 channel
TX
RX
4-4
RS-232C cable
RS-422 cable