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Equipment FAQs

How Do I Replace The PLC Battery?

Date added:
Thursday, 01 January 2009
Last revised:
Tuesday, 20 October 2009
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Answer

Replace the Programmable Logic Controller (PLC) battery as needed to prevent loss of machine settings such as Recipe's, Setup, Calibration Factors, and Totals. Yearly is the recommended timeframe to be sure data is always protected. Locate the battery on the CPU module of the PLC rack, see image below. With Power On remove the old battery and replace it with a fresh battery. Some PLC's contain a small capacitor to retain data for several minutes with power off, but not all, so it is best to leave power on while performing the replacement.

Common Replacement Battery Order Numbers:
161084 for S7-314IFM PLC typically used for Autocaster RC.
180384 for S7-22x PLC's typically used on Autocaster Economizers and most Batchmasters.
180385 for S7-21x PLC's typically used on Autocaster Basic and old Batchmasters.

S7-314IFM Battery Location:

Autocaster PLC Battery

S7-22x Battery Location:

S7-200 Autocaster, Batchmaster Battery Location

S7-200 Autocaster, Batchmaster Battery Connector