Responses To Operating Mode Changes And Interruptions In User Data Transfer In The Dp Master/Et And The Et 200S With The Im 151/Cpu - Siemens SIMATIC IM 151/CPU Manual

Commissioning and Diagnostics
Event Identification
The following table indicates how the DP master or the IM 151/CPU of the
ET 200S identifies changes in operating mode and interruptions in user data
transfer.
Table 4-5 Responses to Operating Mode Changes and Interruptions in User Data Transfer in the DP
Master and the ET 200S with the IM 151/CPU
Event Event
Bus interruption OB 86 is called with the message
Station failure
(short-circuit,
connector (incoming event;
removed) diagnostic address of the IM
151/CPU)
During I/O access to the transfer
area: OB 122
is called (I/O access error)
ET 200S: OB 82 is called with the message
RUN STOP Faulty module
(incoming event;
diagnostic address of the
IM 151/CPU;
variable OB82_MDL_STOP=1)
ET 200S: OB 82 is called with the message
Module ok
STOP RUN
(outgoing event;
diagnostic address of the
IM 151/CPU;
variable OB82_MDL_STOP=0)
DP master: –
RUN STOP
DP master: –
STOP RUN
4-12
What Happens ...
In the DP Master In the IM 151/CPU
OB 86 is called with the message
Station failure
(incoming event; diagnostic address
of the IM 151/CPU)
During I/O access to the transfer
area: OB 122
is called (I/O access error)
–
–
OB 82 is called with the message
Faulty module
(incoming event;
diagnostic address of the
IM 151/CPU;
variable OB82_MDL_STOP=1)
OB 82 is called with the message
Module ok
(outgoing event;
diagnostic address of the
IM 151/CPU;
variable OB82_MDL_STOP=0)
ET 200S Interface Module IM 151/CPU
A5E00058783-01