Using On-Pulse or Off-Pulse as watchdog may fail

Applies To:

SNAP-PAC-S1
SNAP-PAC-S1-FM
SNAP-PAC-S1-W
SNAP-PAC-S2
SNAP-PAC-S2-W
SNAP-PAC-R1
SNAP-PAC-R1-FM
SNAP-PAC-R1-W
SNAP-PAC-R2
SNAP-PAC-R2-FM
SNAP-PAC-R2-W
SOFTPAC

Versions Affected:

Problem was discovered in version: R9.3a
Problem is fixed in version: R9.3e

Resolved In Version:

Problem is fixed in version: R9.3e

Symptoms:

Some customers use the digital output On-Pulse or Off-Pulse as a watchdog, by continuously sending a new pulse instruction in a period that is slightly less than the pulse's length. However, if you do this, the digital point may still change states, making it appear a watchdog has occurred when it hasn't.

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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