Published: October 31, 2012
How to determine if the soldered battery in a controller needs replacement
All Ultimate I/O control engines
SNAP-PAC-S1s with serial number 625653 or lower
When the battery fails, the following may occur but all symptoms may not be apparent:
- The real-time clock has the incorrect date and time.
- A control strategy does not automatically start upon reset or power-up because the AutoRun flag is disabled.
- Persistent values disappear.
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