Agreed, at this point as I'm testing, the load from the house is on the 
utility, and not the generator, but it's a real possiblilty to have to 
use the battery backup with either utility or generator supply. This 
situation occurs when the utility power has returned, the Atomatic 
Transfer Switch is waiting for at least a minute for the utility power 
to be good to prevent flickering as the utility becomes stable. The 
generator is a heavy (350 lbs.) and has been used with this setup for a 
year, but never had previously tested this way. Was writing 
documentation, and words weren't matching what was there, was when I 
found this. Just seens very strange where power comes  from affects the 
changeover.

Jake Anderson wrote:
>> Any thoughts would be appreciated. Can I (or do I wnat to) put a big 
>> capacitor on the PLC supply. I don't have a O..scope, but do have a DMM 
>> with RS-232, at it's slow (1 /sec.) rate nothing is showing up in the 
>> PLC supply.
>>
>>   
>>     
> perhaps its not so much a drop in the supply as a spike or surge thats
> resetting it.
>   
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