Interrupt, error and system messages
9.1 PROFIBUS DP
ET 200M
216 Operating Instructions, 12/2008, EWA-4NEB780600602-08
9.1.3.11 Evaluating interrups from station diagnosis
The structure of the station diagnosis is the same as the structure of the interrupt section.
Interrupts with S7 / M7 DP master or DPV1 master
The ET 200M supports the following interrupts:
● Diagnostic interrupt
● Hardware interrupt
● Removing / insertion interrupt
These interrupts can be evaluated using an S7 / M7 DP master or DPV1 master. In the event
of an interrupt, interrupt OBs are executed automatically in the master CPU (refer to the
"System and Standard Functions for S7-300/400
(http://support.automation.siemens.com/WW/view/en/1214574
)" programming manual).
Inserting / removing interrupts with S7 / M7 DP master or DPV1 master
If you use the ET 200M with "Change during Operation" on an S7 / M7 DP master or a DPV1
master, the system behaves as follows:
● When removing a module the IM 153-x reports a removing interrupt on the DP master
which executes the OB 83. In the OB 83 you program the desired response to the
removing event.
With I/O access the OB 122 (I/O access error) is called in the DP master CPU.
● If you insert a module that corresponds to the configuration, the IM 153-x reports an
inserting interrupt on the DP master (call OB 83 with respective diagnostic buffer entry)
and configures the module in accordance with the saved configuration.
● If you insert a module in a non-configured slot, the ET 200M behaves as follows:
– In S7 mode the IM 153-x does not report an inserting interrupt.
– In DPV1 mode the IM 153-x reports an inserting interrupt.
● If you insert a different module than configured:
– then the IM 153-x reports an inserting mode to the DP master (call OB 83 with
respective diagnostic buffer entry); but ignores this non-configured module.
– The module diagnosis is stopped, and you can read out the slot in which the wrong
module is inserted.
– the SF LED indicates the error.
Note
If you insert or remove a dummy module DM 370, then no inserting or removing
interrupt is triggered.
WARNING
Faults when removing and inserting will be tolerated for up to 1 second. This means, that in
such a case the output values will not change within the tolerance time.
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