Mitsubishi QJ71MB91 - Page 315

11
TROUBLESHOOTING
11.1 Troubleshooting
11 - 10
9
PROGRAMMING
10
DEDICATED INSTRUCTIONS
11
TROUBLESHOOTINGAPPENDICESINDEX
Table11.3 Troubleshooting for other symptoms (Continued)
No. Symptom Check point Corrective action Reference
9
The QJ71MB91 responds
slowly.
Check the specifications using the
processing time performance expression
of the QJ71MB91 slave function.
The processing time must be within the
range indicated by the result of the
performance expression.
The processing time may be slower than
the result of the performance expression if
two channels are used simultaneously.
Appendix 3
When accessing the programmable
controller CPU device in the slave
function, check if too many accesses to
the programmable controller CPU are
made from other modules or the sequence
program.
Reduce the load of the programmable
controller CPU.
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