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KB82498
E2 shows incorrect counts in OptoMMP protocol for AD20 rate (frequency)
Revision:  1.0
Published:  9/9/2014
Applies To
E2
Versions
Problem affects versions:  
Firmware R1.1d and lower
Problem is fixed in version:  
R1.1e

SYMPTOMS

This issue occurs when you're using an E2 brain board with the OptoMMP protocol and you've followed the instructions in Form 1576 to configure an AD20 module on the E2 with PAC Manager. When you inspect the point in PAC Manager, you find the counts and Engineering Units range from 0 to 25,000 instead of the specified 0-4095.

This issue does not occur when using the E2 with the Optomux protocol.

RESOLUTION

Opto 22 has resolved this issue.

WORKAROUND

Instead of using counts, use scaled units and configure the point to have Upper Scaled Units = 4095. In this case, it will give the same number that counts should have.

Relevant Downloads
No relevant downloads have been specified.
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Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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