godfrey
Member
Is there a way to check the energy left in a PLC CPU battery? I know of a few systems which set a status bit when it's time to change it. Do they just look at voltage? What I'm getting at is, prior to the status bit being set, is there a way to test how far the battery is from this point? Using the AB SLC as an example, the battery has a nameplate rating of x. Is there a published or known value below which the status bit will be set?
I'm looking at this from the standpoint of scheduled maintenance.
I'm looking at this from the standpoint of scheduled maintenance.