5-6
ET 200L Distributed I/O Device
EWA-4NEB 780600902-05
Station status 2 provides additional information about the DP slave and is
structured as follows:
Table 5-4 Structure of Station Status 2 (Byte 1)
Bit Meaning
0 1: Parameters have to be assigned again to the DP slave.
1 1: A diagnostic message has been issued. The DP slave cannot
resume operation until the fault has been corrected (static
diagnostic message).
2 1: The bit is always set to ”1” if the DP slave having this PROFIBUS
address is present.
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 1: The bit is always set to ”0”.
7 1: The DP slave is 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 is reserved and is not relevant in as far as the diagnostics of
the ET 200L distributed I/O device are concerned.
The Master PROFIBUS Address diagnostic byte stores the PROFIBUS ad-
dress of the DP master which has assigned parameters to the DP slave (refer
to Figure 5-1, byte 3).
The master PROFIBUS address comprises one byte with the PROFIBUS ad-
dress of the DP master that assigned parameters to the DP slave and has read
and write access to the DP slave.
A code is stored in the manufacturer identification that describes the type of
the DP slave (refer to Figure 5-1, bytes 4 and 5).
The manufacturer identification of the DP slave comprises two bytes. You
will find the manufacturer identifications of the different electronics blocks
in Appendix, Table B-4.
Structure of Sta-
tion Status 2
Structure of Sta-
tion Status 3
Definition of the
Master PROFIBUS
Address
Structure of the
Master PROFIBUS
Address
Definition of the
Manufacturer ID
Structure of the
Manufacturer ID
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