Siemens Simatic ET 200S Operating Instructions Manual page 178

Alarm, error and system messages
8.1 Alarm, error and system messages on PROFIBUS DP
The module status for ET 200S is structured as follows for the IM151-1 STANDARD, IM151-
1 FO STANDARD, and IM151-1 HIGH FEATURE interface modules:
Figure 8-7
8-30
Structure of the module status for ET 200S with IM151-1 STANDARD, IM151-1 FO
STANDARD, and IM151-1 HIGH FEATURE
Operating Instructions, 12/2005, A5E00515771-03
ET 200S