Mitsubishi QJ71MB91, User Manual

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11
TROUBLESHOOTING
11.1 Troubleshooting
11
- 10
9
P
R
OGRAM
M
ING
10
D
E
DICA
TED
INSTRUC
TI
ONS
11
TR
O
U
BLE
S
HOOTING
A
P
P
E
NDICE
S
INDE
X
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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