Siemens SIRIUS M200D - Master PROFIBUS Address

Diagnostics
7.4 Diagnostics with STEP 7 on PROFIBUS DP
M200D PROFIBUS/PROFINET
Manual, 08/2014, A5E01577426A/RS-AA/004
155
Station status 2
Structure of station status 2 (byte 1)
Bit
Meaning
0 1: The DP slave parameters need to be reassigned.
1 1: A diagnostics message is pending. The DP slave will not operate until the problem is
eliminated (static diagnostics message).
2 1: The bit is always set to "1" if the DP slave with this PROFIBUS address is present.
3 1: The watchdog is activated 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: Bit is always "0".
7 1: The DP slave is disabled, i.e. it is isolated from the current process.
1)
The bit is updated only if another diagnostics message changes also.
Station status 3
Structure of station status 3 (byte 2)
Bit
Meaning
0 to 6 0: Bits are always "0".
7 1:
• There are more diagnostics messages pending than the DP slave is able to store.
• The DP master cannot enter all the diagnostics messages sent by the DP slave in its
diagnostics buffer (channel-specific diagnostics).
7.4.3.2
Master PROFIBUS address
Definition
The diagnostic byte master PROFIBUS address contains the PROFIBUS address of the DP
master:
● Which the DP slave has configured and
● That has read and write access to the DP slave
The master PROFIBUS address is located in byte 3 of the slave diagnostics.