The node status object

Purpose

To monitor the communication status of the individual node, we recommend that you create a node status object. You can then reserve one or more process diagrams for an overview of your PLC network where you can view the status of each PLC in the system at a glance.

How to create a node status object

The node status object is created as an analog object in Definition. Click here $images\CHICLET.gif$ for details.

Example: PLC network with node status objects

The figure below shows a PLC network where each PLC icon has been connected to a node status object. An alarm text has been attached to the object to make communication alarms visible in the Alarm List.
If the communication fails with a PLC, its icon will blink and the communication alarm will occur as an error code in the Value field of the Alarm List.

Note: The value 0 means that there are no communication errors.

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