Omron CJ1W-SCU22, Руководство по эксплуатации, Страница: 341 / 478

R-7
A Standard System Protocol
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
R
-2
Com
p
o
W
a
y
/F Mast
er Pr
otoc
o
l
Re
f
R
-2-1
CompoW
a
y
/F
R-2 CompoWay/F Master Protocol
The CompoWay/F Master Protocol is used to send CompoWay/F commands with the CS/CJ-series
PLC serving as the host (master).
CompoWay/F is a united communication protocol used by OMRON's components for general-purpose
serial communications. A host computer or a PLC can function as a host (master) to send Compo-
Way/F commands (message frames) to OMRON components, which function as slaves. The compo-
nents will return responses to these commands. Using CompoWay/F commands, the host can
read/write data, settings, and operating status to control the operation of the components.
CompoWay/F has the following features.
• The same message frame format is used, eliminating the need for special protocols for each compo-
nent. Just by changing commands, etc., serial communications with various components can be eas-
ily performed.
The CompoWay/F Master Protocol is provided as a standard system protocol to enable the CS/CJ-
series PLC to execute read/write sequences for CompoWay/F commands.
System Configuration for Standard System Protocol
R-2-1 CompoWay/F
RS-232C Connections
CS/CJ-series PLC: Host
CompoWay/F response
CompoWay/F command
RS-232C
OMRON CompoWay/F component: Slave
RS-422A/485 Connections
CS/CJ-series PLC: Host
CompoWay/F response
CompoWay/F command
RS-422A/485
OMRON CompoWay/F components: Slaves