The Museum of HP Calculators

HP Forum Archive 13

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HP-85 start-up error
Message #1 Posted by John on 9 July 2003, 6:56 p.m.


On my HP-85 (A), when I have more than one interface module connected (all with different ids) I get the following error on power-up or reset:

Error 111 : IOP

This is with a full set of ROMs plugged in too. I can run programs and the modules all work, any clues what this error means please?

With only one I/O module the machine starts fine. I also don't get this with the same three modules on my 85B.

Regards, John

Error 111
Message #2 Posted by Mike on 9 July 2003, 7:18 p.m.,
in response to message #1 by John

"An invalid input/output operation was performed. Use the ERRSC function to determine which interface generated the error."

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