Omron ZEN Communications Manual

2.2 Structure of Command Text
15
■ List of Services
Note: No commands will be accepted and no responses will be
returned when a memory error has occurred or the Controller is
initializing (until normal operation begins after the power is
turned ON).
MRC SRC Name of service Processing
01 01 Read Variable Area This service reads from variable areas.
01 02 Write Variable Area This service writes to variable areas.
05 03 Read Controller Attributes This service reads the model number and communi-
cations buffer size.
06 01 Read Controller Status This service reads the operating status.
07 01 Read Time Data This service reads ZEN time data.
07 02 Write Time Data This service sets ZEN time data.
08 01 Echoback Test This service performs an echoback test.
30 05 Operation Command This service switches between RUN and STOP.

Omron ZEN Specifications

General

Display	LCD
Mounting Type	DIN Rail
Operating Temperature	-10 to 55°C
Power Supply Voltage	100-240V AC
Output Type	Relay, Transistor
Number of Outputs	4-8
Programming Language	Ladder Logic