General Dp Master; Siemens Simatic - Festo CPV-DI01 Manual

3. Diagnosis PROFIBUS-DP

3.4.1 General DP Master

3.4.2 Siemens SIMATIC S5/S7
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With the function Set_Prm you have the possibility of deter-
mining the watchdog time (WD_Fact_1, Octet 2, WD_Fact_2,
Octet 3). In the event of a fault, e.g. a bus failure, the CP sys-
tem will switch off all the valves and electric outputs after the
parametrized time.
With these controllers you can determine the reaction of the
CP system to the faults mentioned (details see controller
manual).
Almost all configuration programs contain the function "Re-
sponse monitoring." For the operating modes mentioned, the
time specified corresponds to the drop-off time of the valves
and electric outputs.
Further details on response monitoring can be found in the
appropriate manuals.
Festo P.BE-CP-DI01-EN en 0007a