KB84092
Published: November 5, 2014
Revision: 1.0

Timeout error (-39) occasionally returned on SNAP PAC serial ports


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

Versions Affected:

Problem affects versions: Firmware R9.4a
Problem is fixed in version: R9.4b

Resolved In Version:

Problem is fixed in version: R9.4b


Symptoms:

When you use serial communications on a SNAP PAC hardware controller for anything other than I/O, you may receive occasional timeout (-39) errors. This issue affects only the use of serial ports on SNAP PAC controllers; it does not affect TCP communication handles to serial modules on the rack.

Workaround:

Use the Send Communication Handle Command to send a "set.to:" command to set the timeout to an appropriate value.

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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