Displaying Operating States of M580 CPU Modules

Overview

System monitoring lets you obtain information about operational states of Modicon M580 CPU modules by using the diagnostic engine:

The engine sends requests to their IP address and monitors responses.

The state of the module is indicated by a diagnostic icon in the physical view in which the module appears.

NOTE: Use the indication of the operating state for commissioning only as it does not replace the use of proper system monitoring.

NOTE: For BMENOC03•1 communication modules, the indication of the operating state in a physical view is not available. To view their operating state, edit the control project, open the module, and connect to the controller. At the top of the screen, the state LEDs of the module are shown.

Detection Method

The diagnostic engine that runs on the computer acting as Control Expert server sends Modbus TCP requests to the IP address of the CPU module to obtain information about its state.

Operating State Representation

The table describes which operating states can be represented on M580 CPU modules in a physical view and the icons that are used. Their description is indicated in a tooltip.

Icon	Description	CPU module state
	RUN⁽¹⁾. Green arrow.	Refers to the state of the RUN LED of the CPU module. Indicates that the LED is either on or blinking. If another diagnostic icon is already shown, the run icon appears below.
	Not fully operational⁽¹⁾. Blue diamond.	Non-blocking condition linked to an I/O detected error and the CPU module is not in HALT state. NOTE: When this icon is displayed while the RUN icon is present, indicates that at least one task is not in RUN state. To know the operating mode of a task, edit the control project and open the Task tab of the PLC Screen .
	Out of Order/Not operational⁽¹⁾. Yellow triangle. NOTE: Can also indicate an incompatibility or mismatch between the configured and the physical object.	Non-blocking condition linked to an I/O detected error and the CPU module is in HALT state.
		Blocking condition that lead the CPU module to go in HALT state. The CPU module may still be able to communicate.
(1) Implies that the device is reachable and responded.

NOTE: For more information on states of M580 CPU modules and blocking/non-blocking conditions, refer to the topic describing M580 diagnostics.

Representation of the Operating State for PACs

Depending on the zoom level that is applied in the physical view, the diagnostic icons for PACs are shown as follows:

100% and higher: Icons are shown on each module of the local rack.
Less than 100%: One or more global diagnostic icons are shown at the local rack level.

The table describes the resulting global diagnostic icon based on the icon of modules on the local rack.

Icons of CPU module	Icon of other modules on the local rack	Resulting global icons on local rack
or and/or	No module has the not reachable icon .	Same as on the CPU module


or and	At least one module has the not reachable icon .	(not reachable) and