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Mitsubishi Electric Melsec Q Series User Manual page 115

Profibus-dp master module
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4
FUNCTIONS
(4) Acquiring extended diagnostic information
(a) Checking the station generating extended diagnostic information
(b) Acquiring extended diagnostic information from DP-Slaves
POINT
Remark
For whether extended diagnostic information is stored in any of DP-Slaves or not,
check each DP-Slave's Status 1 information that is stored in the Diagnostic
information area (for mode 3) (Un\G23072 to Un\G23321).
In the case of the 1st DP-Slave, check b11 of buffer memory address 23073
(5A21
).
H
Perform the following procedure to acquire extended diagnostic information:
1) Write the FDL address of the DP-Slave, from which extended diagnostic
information is read, to the Extended diagnostic information read request area
(Un\G23456).
2) Turn ON the Extended diagnostic information read request signal (Y06).
3) When reading of the extended diagnostic information is completed, the
Extended diagnostic information read response signal (X06) turns ON, and the
extended diagnostic information is stored in the Extended diagnostic
information read response area (Un\G23457 to Un\G23583).
4) Check the read extended diagnostic information, and turn OFF the Extended
diagnostic information read request signal (Y06).
The latest extended diagnostic information that occurred during I/O data
exchange is stored in the buffer memory of the QJ71PB92V.
To check the latest extended diagnostic information, read it from the following
buffer memory area:
• Extended diagnostic information area (for mode 3) (Un\G23328 to
Un\G23454)
For program examples on acquisition of extended diagnostic information, refer to
the following:
• Single CPU system:
• Redundant system:
4.1 PROFIBUS-DPV0 Functions
4.1.2 Acquisition of diagnostic and/or extended diagnostic information
Section 7.2
Section 7.9.2
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