Interrupt, error, and system messages
4.4 Evaluating the interrupts of the ET 200S
IM151-1 HIGH FEATURE interface module (6ES7151-1BA02-0AB0)
62
Manual, 03/2008, A5E01075975-02
4.3.10
Incorrect module configurations of ET 200S on the PROFIBUS DP
Invalid module configuration states
The following invalid ET 200S module configuration states lead to an ET 200S station failure
or prevent entry into data exchange. These responses occur regardless of whether the IM
parameters "Operation at set <> actual configuration", "Replace modules during operation",
and "Startup at set <> actual configuration" have been enabled.
●
Two missing modules
●
Terminating module missing
●
Number of modules exceeds maximum configuration
●
Backplane bus fault (for example, defective terminal module)
Note
The station will not start up if one module is missing (gap) and the ET 200S is switched
on.
Diagnostics
You can identify any invalid module configuration states on the basis of the following
diagnostics:
Identifier-related diagnostics
Module status
All 63 bits set
•
01
B
: "Module error; invalid user data" for all
modules (slots) until the cause of the error is
found
•
11
B
: "No module; invalid user data" once the
cause of the error is found
4.4
Evaluating the interrupts of the ET 200S
Introduction
In the case of certain process states/errors, the DP slave saves one interrupt block for each
process state or error containing relevant information in the diagnostic frame (DPV1 interrupt
mechanism). Independent of this, the diagnostic status of the DP slave is maintained in the
identifier-related diagnostics, the module status, and the channel-related diagnostics.
Interrupts in DPV0 mode
For DPV0 mode, no interrupts are defined in accordance with the PROFIBUS standard.
Thus, interface modules do not trigger an interrupt in DPV0 mode.
