Omron WT30 Operation Manual page 22

Features
Relay Configuration
Personal computer
or
Serial Master Station
WT 30
-
SID 16
ON/OFF data
Device A
4
The communications area can be extended by using a Relay Station, and the
communications path can also be switched when the WT30 Terminals are
moved due to layout changes.
PLC
RS-232C cable
WT 30
-M 01
-FL K
(2) Switch the
path.
(1) Communications
are not possible.
(total number of I/O
WT 30
-
SID 16
WT 30
SID 16 -
ON/OFF data
Device B Device C
The frequency channel is
always the same.
Relay station
(3) Perform communications
via the relay station.
64 max.
Slave Stations)
Relocation
I/O Slave Station
WT 30
-
SID 16
ON/OFF data ON/OFF data
Device D
Section 1-1
WT 30
-
SID 16
WT 30
-
SID 16 WT 30
-
SID 16
ON/OFF data
Device E Device F