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Mitsubishi Electric Melsec Q Series User Manual page 289

Profibus-dp master module
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9
TROUBLESHOOTING
1)
Are the parameter settings consistent
with actual slave configurations?
Yes
Is the QJ71PB92V's Data exchange start
request signal (Y00) ON?
Yes
Has an error
occurred on the DP-Slave?
(Diagnostic information detection
signal (X01) is OFF, or the RSP
ERR. LED is OFF.)
Yes
End
Figure 9.5 Troubleshooting When Communications with DP-Slaves Are Not (Continued)
No
No
No
9.3 When Communication with DP-Slaves Is Not Possible
Correct the parameters and write them again.
Turn ON the Data exchange start request signal (Y00).
Check the diagnostic information of the faulty DP-Slave, and
take corrective actions.
(When the QJ71PB92D-compatible function is disabled)
Check if the corresponding bit is ON (1) in the Slave status
area (Diagnostic information detection) (Un\G23056 to
Un\G23064).
Section 3.4.5
(£
)
(When the QJ71PB92D-compatible function is enabled)
Check if the corresponding bit is ON (1) in the Slave status
area. (¢PROFIBUS Interface Module User's Manual)
9
9
- 7

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