Firmware needs to support PAC Manager in calibrating analog points that have negative scaling

Applies To:

SNAP-PAC-R1
SNAP-PAC-R1-W
SNAP-PAC-R2
SNAP-PAC-R2-W
SNAP-PAC-EB1
SNAP-PAC-EB1-W
SNAP-PAC-EB2
SNAP-PAC-EB2-W
SNAP-PAC-SB1
SNAP-PAC-SB2

Versions Affected:

Select Version Text Firmware R9.5b and lower
Problem is fixed in version: Firmware R9.5c

Resolved In Version:

Problem is fixed in version: Firmware R9.5c

Symptoms:

Note: This section has been updated based on new information uncovered during investigation.
PAC firmware needs to support PAC Manager's Calc and Set Gain operation so that it correctly calculates gain values when analog points are configured for negative scaling. (Negative scaling occurs when the high scale is set to a value that is lower than the low scale; for example, high = 0 and low = 100.)

Workaround:

If you use negative scaling for analog points, use PAC Manager's two-point method to calculate and set the offset and gain.

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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