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11A34 checksum error

Posted: August 27th, 2019, 1:24 am
by matthewbartlett
For no apparent reason I'm suddenly getting a checksum error on the 11A34 self test.
I have plugged into the RS-232 port of the 11402 and sent the UID? command. I received a message that the serial number is ZZZZZZZZZZZ.
I moved J611 to the proper position for reprogramming of the Unit ID with the serial number but I get an error that says hardware is preventing that function.

Any help would be appreciated.