KB58607
Published: December 12, 2007
Revision: 2.0

Digital module states not reported accurately using Modbus/TCP protocol and Ultimate I/O


Applies To:

SNAP-UP1-ADS

Versions Affected:

Problem was introduced in version: R7.2d
Problem is fixed in version: R7.2h

Resolved In Version:

Problem is fixed in version: R7.2h


Symptoms:

The Ultimate I/O unit states of some points on digital modules may not report accurately.

The problem is seen when a 4-point digital module is installed in positions 1, 3, 5, or 7 on a rack. When inspected, the first three points of the module show the correct state, but the fourth point does not. The fourth point's state is actually reflected in "coil location + 8". For example, coil 8, is actually seen at coil 16.


Resolution:

Opto 22 has resolved this issue.


Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com


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