Diagnostics Via Controller Or Dp Master; Diagnostics For Dp Masters, General; Diagnostics With Siemens Simatic S7 - Festo CTEU-PB Electronics Description

3. Diagnostics
3.4

Diagnostics via controller or DP master

3.4.1 Diagnostics for DP masters, general

3.4.2 Diagnostics with Siemens SIMATIC S7

Control system
SIMATIC S7/M7
OB: Organisation module (building block)
Tab. 3/12: Diagnostic behaviour "STOP" and "RUN" with SIMATIC S7
3-18
The diagnostic behaviour is dependent on the type and scope
of the respective master. Observe the information in the
product documentation of your controller or DP master.
With controllers from Siemens and other manufacturers, you
have the ability to specify the behaviour of the bus node in
case of malfunctions (for details see product documentation
on the respective controller).
You can set one of the two types of diagnostic behaviour:
– Hard characteristics in case of malfunction: The controller
switches to the operating mode "STOP" when an error
occurs
– Smooth characteristics in case of malfunction: The con-
troller remains in the operating mode "RUN" when an
error occurs
Module Significance
OB82 Reaction to a device-specific dia-
gnosis
OB86 Reaction to failure of a DP slave
Almost all configuration programs also offer the function "Re-
sponse monitoring" to take into account switch-off time of the
valves and electric outputs.
STOP
default
default
Festo P.BE-CTEU-PB-OP+MAINT-EN en 1208NH English
RUN
OB is pro-
grammed
OB is pro-
grammed