Omron CJ1W-DRM21 - Devicenet Unit Features

1 Features and System Configuration
1-2
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
1-1 DeviceNet Unit Features
The following are features of the CJ-series DeviceNet Units (CJ1W-DRM21).
z Multi-vendor Network
You can connect DeviceNet devices made by other companies (masters or slaves) to DeviceNet
because it conforms to open field network specifications. You can use a combination of valves, sen-
sors, and other DeviceNet products to adapt the network to various field-level applications. You can
use a combination of valves, sensors, and other DeviceNet products to adapt the network to various
field-level applications.
z Simultaneous Remote I/O Communications and Messaging Services
Remote I/O communications that constantly transfer I/O between a DeviceNet Unit and slaves as
well as message communications where the DeviceNet Unit sends and receives data as needed
can both be executed simultaneously. When a DeviceNet network is constructed, this feature
ensures the network will be able to handle applications that require the free flow back and forth of bit
data and message data.
Remote I/O Communications
Note Refer to Section 4 Remote I/O Master Communications for details on remote I/O communica-
tions.
Explicit Message Communications
Note Refer to 6-2 Sending Explicit Messages and 6-3 Receiving Explicit Messages for details on
remote I/O communications.
DeviceNet
CJ-series DeviceNet
Unit (master)
Remote I/O (master)
f
unction
Slave
Slave
Slave
DeviceNet
CJ-series
DeviceNet Unit
Explicit message
RS-232C
Slave
RS-232C
Slave
CJ-series
DeviceNet Unit