Error OutputOCR Type A23018 − 718.2 Error Signal Output Conditions (Parallel)Timing chart for errorsD1 to D8ERRORD1 to D8ERROROVFD1 to D8ERROROVFOK OVF OKD1 to D8ERRORD1 to D8ERROROVFOK ERR OKNo parallel output handshake, erroroccursParallel output handshake, error occursOK ERR OKNo parallel output handshake, no error occursParallel output handshake, no erroroccursParallel output handshake, overflow occurs When an error occurs during numerical calculationsand judgement output, handshaking starts and theerror signal turns on at the same time.When there is an error in the numerical calculations,OVF (overflow signal) turns on only when the registerin which the error occurred is output.

Panasonic A230 User Manual