Hitachi Seiki HG400 (1993)
SN HG40018 (has newer Mori Hitech Label on front)
Fanuc 15M/A control with Micon 16 III PLC controller
Problem:
When machine boots up the Micon 16III unit displays:
1120 PC Ladder Sum Check Error
I think all we need is the procedure to clear this alarm. It appears to be a matter of “flushing” some PLC memory buffer.
Anyone out there have any suggestions?