Barry Broskowitz posted:John,
That signal is output when a channel of the TIU is first powered, and it last around 7-8 seconds
Just to be clear...
The watchdog signal issued every time that the voltage at the output of a TIU channel changes from 0 to any other value, and it is present for 5 seconds effective with DCS 4.0 or later.
Prior to DCS 4.0 it was only present for 1/2 second.
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Barry,
I recently had a conversation with Jason,and he said the watchdog signal is only present less than a second. Was he mistaken?
Dave