Siemens SIMATIC ET 200S - Structure of Station Status 2 (Byte 1); Structure of Station Status 3 (Byte 2)

Commissioning and Diagnostics
6-32
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Station status 2
Table 6-9 Structure of station status 2 (byte 1)
Bit Meaning
0 1: New parameters have to be assigned to the DP slave.
1 1: A diagnostic message has been issued. The DP slave will not work until
the fault has been corrected (static diagnostic message).
2 1: The bit is always set to ”1” in the DP slave.
3 1: Response monitoring has been enabled for this DP slave.
4 1: The DP slave has received the ”FREEZE” control command
1
.
5 1: The DP slave has received the ”SYNC” control command
1
.
6 0: The bit is always at 0.
7 1: The DP slave has been disabled, that is, it has been removed from the
processing in progress.
1
The bit is updated only if another diagnostic message changes, too.
Station status 3
Table 6-10 Structure of station status 3 (byte 2)
Bit Meaning
0to6 0: The bits are always at 0.
7 1: • There are more diagnostic messages than the DP slave can
store.
• The DP master cannot enter all the diagnostic messages sent by
the DP slave in its diagnostic buffer (channel-specific diagnosis).