3.4.1 General DP master
By means of the function
Set_Prm
you can determine
the watchdog time (WD_Fact_1, Octet 2, WD_Fact_2,
Octet 3). In the case of a fault, e.g. a bus failure, the
CP system will switch off all valves and electrical out-
puts after the parametrized time.
3.4.2 Siemens SIMATIC S5/S7
With these controllers, you can determine the reaction
of the CP system to the faults named (details see con-
troller manual).
Almost all configuration programs contain the function
"Response monitoring". For the operating modes
named, the specified time corresponds to the drop-off
time of the valves and the electrical outputs.
Further details on response monitoring can be found in
the appropriate manuals.
3. Diagnosis
3-18 CP FB13-E 9904b
To Next Page
Loading...