Omron Sysmac WS02-CXPC1-EV3, Operation Manual

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PART 3: CX-Server Runtime
OMRON CHAPTER 3 – Communications
CX-Server Runtime_Page 21
When the Routing Tables have been set up, communications are possible from all the computers to all PLCs.
Although each network is given a specific number, the local network can always be addressed as network 0. If a
serial connection has been made to a CV-series PLC, network 0 refers to the network that is connected to the
lowest numbered Special I/O Unit and the local PLC can be addressed as Node 0.
Note Remember that the Unit number that is specified in the communications dialog is not
related to the Special I/O Unit number as set by the rotary switches on the top of CV-
series SIO units.
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 1.7/CX-P 3.0 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