'Move I/O Unit to Numeric Table' PAC Control command causes intermittent error -3

Applies To:

SNAP-PAC-S1
SNAP-PAC-R1
SNAP-PAC-R2
SNAP-UP1-ADS
SNAP-UP1-M64
SNAP-UP1-D64
SNAP-LCE

Versions Affected:

Problem was discovered in version: R8.0e SNAP PAC control engines, R7.2d Ultimate I/O control engines

Problem is fixed in version: R8.0f SNAP PAC control engines, R7.2h Ultimate I/O control engines

Resolved In Version:

Problem is fixed in version: R8.0f SNAP PAC control engines, R7.2h Ultimate I/O control engines

Symptoms:

When using the Move I/O Unit to Numeric Table command in a PAC Control strategy, a possible "‑3 Buffer overrun or invalid length error." error message may be posted to the control engine error queue.

Workaround:

Instead of using the command:

MoveIoUnitToNumTable

use the command:

MoveIoUnitToNumTableEx

Notice the commands call the Table and Starting Index parameters in reverse order.

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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