I/O Scanner

Open the Page

Access the I/O Scanner page from the Diagnostics tab—

(Connected Devices > I/O Scanner):

NOTE: This page is updated every 5 seconds.

Toggling Between Scanners

Some M580 safety CPUs include both a Modbus TCP (Ethernet I/O) scanner and a CIP Safety (IEC 61784-3) scanner. For these safety CPUs, this page includes a Toggle Scanner button. Use this to change the display from one scanner to the other. When the CIP Safety scanner is displayed, the web page banner reads I/O Scanner - CIP Safety .

Diagnostic Information

This table describes the scanner status and connection statistics:

Scanner Status	Operational	The I/O scanner is enabled.
	Stopped	The I/O scanner is disabled.
	Idle	The I/O scanner is enabled but not running.
	Unknown	The I/O scanner returns unexpected values from the device.
Connection Statistics	Transactions per Second
	Number of Connections

In the Scanned Device Status display, the colors that appear in each block indicate these states for specific remote devices:

Color	Indication	Status
gray	Not Configured	There is an unconfigured device.
black	Unscanned	The scanning of the specific device has been intentionally disabled.
green	Scanned	A device is being scanned successfully.
red	Fault	A device that is being scanned is returning detected errors.