Mitsubishi Electric Melsec Q Series User Manual page 237

Profibus-dp master module

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(3) Program example

Figure 7.17 Program Example for Alarm Acquisition (Alarm Read (with ACK))

7.5 Program Example for Alarm Acquisition

7.5.4 Program example

Reads the alarm

status of each

Request code is set. (1502

The FDL address of the

target DP-Slave is set

(FDL address 1).

Empty area (0)

Executes alarm read.

Reads the response

code and error code

Reads the execution result

Alarm read completion

Reads detailed error

Processing for failed

Alarm read completion

Troubleshooting