Message Communications Specifications - Omron CJ1W-DRM21 Operation Manual

6 Message Communications
6-1-3

Message Communications Specifications

Supported CPU Unit functions
Unit model number
Max. No. of communications
nodes per Unit
Communications instructions
Sources: destinations
Data length (excluding command code)
Response monitoring time
Retries
Message monitor timer function (explicit
message communications)
6-4
CJ1W-DRM21
Explicit mes- 63
sages
Explicit SendCmd instruction
DeviceNet
Sends explicit messages to DeviceNet masters/slaves made by other
messages
manufacturers, PLCs with C200H I/O Link Units, or PLCs with CS/CJ-
series DeviceNet Units mounted to them.
1:1 (Broadcasting is not supported)
SendCmd instruction: 542 bytes max.
Default setting:
User setting:
0 to 15
You can set the response monitoring time for DeviceNet Units during
explicit message communications (the interval the explicit connection is
open) from the CX-Integrator for each device. (The settings for all devices
can be stored in the DeviceNet Unit. This is called the Message Monitor-
ing Timer List.)
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
Specification
2 s
0.1 to 6553.5 s