Wall Clock questions V19 on CLX

[Emach 0]

A not so simple question for you all. I have a machine that routinely runs for 300 hours. Previous versions of the machine, running SLC's, simply accumulated time using a 60 second timer and used CTD's to tick down the remaining hours and minutes. How bad can the time drift when using this same scheme on a CLX -L32E processor? If the time drift is relatively high, I am looking for some advice on how to calculate the completion time... Should I just convert my cycle time to microseconds and add it to the current value at the start of cycle? That way I could just use a GEQ command to stop the cycle... I'm also thinking I need to use the clock utility to sync the PLC back to the network. This would be really handy when the power drops out.

[TimWilborne 108]

I'm not sure I follow this one. The L35Es keep time when the power is off. Still nice to keep all the clocks in sync, but they shouldn't be getting that far off normally.

[ScottC 8]

Check TConnolly's totalizer solution in post #9 of topic 109702.