Opto 22

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KB84022
E2 may incorrectly report underrange Optomux counts
Revision:  1.0
Published:  9/26/2014
Applies To
E2
Versions
Problem affects versions:  
Firmware R1.1d and lower
Problem is fixed in version:  
R1.1e

SYMPTOMS

When you are reading Optomux counts from an E2 brain board, you may see counts jump erratically when the input field signal would normally indicate counts of less than -200.

Counts may be far too high (typically in the 10,000-20,000 range, but possibly as high as 61,439). Any value over 10,891 indicates this issue. These erratic values may be interspersed with jumps to -4096.

Correct behavior is that you can measure underrange counts down to -386, with the value jumping between the actual and -4096. Below -386, counts jump back up to 10,891, again alternating with -4096.

RESOLUTION

Opto 22 has resolved this issue.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

DISCLAIMER

This Opto 22 Knowledge Base ('OptoKB') article is intended to provide general technical information on a particular subject or subjects and is not an exhaustive treatment of such subjects. Accordingly, the information in this OptoKB article is not intended to constitute application, design, software, or other professional engineering advice or services. Opto 22 may modify the OptoKB articles at any time. Before making any decision or taking any action which might affect your equipment, you should consult a qualified professional.

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