Omron CX-Programmer 9, Operation Manual

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PART 3: CX-Server Runtime
OMRON CHAPTER 3 – Communications
Revision 2.0 CX-Server Runtime_Page 25
DeviceNet
The DeviceNet conforms to the DeviceNet open field network specification, which means that devices (Master
and Slave) produced by other manufacturers can be connected to the Network. A wide range of field-level
applications can thus be supported by combining valve devices, sensors, and other devices.
Two types of communications are supported: 1. – Remote I/O master communications that automatically
transfer I/O between Slaves and the CPU Unit without any special programming in the CPU Unit and 2. –
Message communications that read/write messages, control operations, or perform other functions for Master
Units, CPU Units to which a Master Unit is mounted.
Differences between DeviceNet Network as FINS Network and other PLC Networks are as follows:
1. Maximum Node number and Maximum number of Nodes are 63.
2. No Datalink functionality.
3. There are specific system setting areas and values for DeviceNet Network. Other application software
(DeviceNet Configurator) will support these settings so CX-Net /CX-P does not need to support the system
setting.
The following diagram illustrates the connection options available to the C-series PLC.
Possible Network Combinations - C-series PLC
Note: Only the following C-series PLCs can be used as a gateway: C200H/HX/E/G/E-Z/G-
Z/X-Z, C1000H/HX/E/G/E-Z/G-Z/X-Z, C2000H. The C200HS PLC cannot be used
as a gateway connection. For Ethernet, multiple destination access is possible.