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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 18311 - Block frame: illegal instruction
An attempt was made to read or write a frame which does not exist Control reaction: Interpreter stop NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.
18311
Siemens 18311 - Block frame: illegal instruction
Block frame: illegal instruction
An attempt was made to read or write a frame which does not exist Control reaction: Interpreter stop NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.
Safety
- Only qualified personnel should diagnose and clear control alarms; follow the machine builder's safety procedures and lockout/tagout where hardware work is required.
Common Causes
- An attempt was made to read or write a frame which does not exist
Troubleshooting Steps
- 1Modify part program.
- 2Clear alarm with the RESET key. Restart part program Continuation: Alarms
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Always verify with your machine manual or a certified technician before performing service procedures.