KB56600
Published: July 5, 2007
Revision: 3.0

ioControl / PAC Control ‘Move Numeric Table to I/O Unit’ command attempts to write to disabled I/O units


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 firmware version: R8.0a SNAP PAC, R7.1h Ultimate I/O firmware
Problem is fixed in version: R8.0b SNAP PAC firmware, R7.2 Ultimate I/O firmware

Resolved In Version:

Problem is fixed in version: R8.0b SNAP PAC firmware, R7.2 Ultimate I/O firmware


Symptoms:

If the PAC Control and ioControl Move Numeric Table To I/O Unit command is sent to an Ethernet-based I/O unit, the controller performs a write to the unit’s analog points, even if the unit is disabled. If the I/O unit is online, this may cause the unit’s analog output values may change unexpectedly. If the unit is not online, a -534 (maximum retries) error, and several -444 (send failure) errors are placed in the controller error queue.


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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