Fanuc Alarm 5257 G41/G42 NOT ALLOWED IN MDI MODE
Fanuc Alarm Description
M series
G41/G42 (cutter compensation C: M series) was specified in MDI mode. (Depending on the setting of bit 4 of parameter No. 5008)
T series
G41/G42 (tool–nose radius compensation: T series) was specified in MDI mode. (Depending on the setting of bit 4 of parameter No. 5008)