System Status Lists For Profinet Io - Siemens SIMATIC PCS 7 System Manual

16.3

System status lists for PROFINET IO

Introduction
The CPU makes certain information available and stores this information in the "System
status list".
The system status list describes the current status of the automation system. It provides an
overview of the configuration, the current parameter assignment, the current statuses and
sequences in the CPU, and the assigned modules.
The system status list data can only be read, but not be changed. The system status list is a
virtual list that is compiled only on request.
From a system status list you receive the following information about the PROFINET IO
system:
● System data
● Module status information in the CPU
● Diagnostic data from a module
● Diagnostics buffer
Compatibility of system status lists
System status lists are available for PROFINET IO that support PROFINET IO configuration
sizes and can also be used for PROFIBUS.
You can use a previously known PROFIBUS system status list that is also supported by
PROFINET IO as usual. If you use a system status list in PROFINET IO that PROFINET IO
does not support, an error code is returned in RET_VAL (8083: Index wrong or not
permitted).
Comparison of the system status lists of PROFINET IO and PROFIBUS DP
Table 16- 3 Comparison of the system status lists of PROFINET IO and PROFIBUS DP
SSL-ID PROFINET IO
W#16#0C75 Yes, parameter adr1
changed
W#16#0C91 Yes, internal interface
Parameter adr1/adr2 and
set/actual type identifier
changed
No, external interface
W#16#4C91 No
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 09/2014, A5E32631667-AB
PROFIBUS DP
Yes
Yes, internal interface
No, external interface
No, internal interface
Yes, external interface
Supplementary information
16.3 System status lists for PROFINET IO
Applicability
Communication status between the fault-
tolerant system and a switched DP
slave/PN device
Module status information of a module in
a central configuration or at an integrated
DP or PROFIBUS interface, or at an
integrated DP interface using the logical
address of the module.
Module status information of a module
attached to an external DP or
PROFIBUS interface using the start
address.
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