Interrupt, error and system messages
9.1 PROFIBUS DP
ET 200M
196 Operating Instructions, 12/2008, EWA-4NEB780600602-08
Station status 2
Table 9- 5 Structure of station status 2 (Byte 1)
Bit Meaning
0 1: The DP slave must be reconfigured.
1 1: The slave is in start-up phase.
2 1: The bit in the DP slave is always "1".
3 1: Response monitoring has been enabled for this DP slave.
4 1: The DP slave has received the "FREEZE" control command.
5 1: The DP slave has received the "SYNC" control command.
6 0: The bit is always at 0.
7 1: The DP slave is deactivated, that is to say, it has been removed from the current
processing.
Station status 3
Table 9- 6 Structure of station status 3 (Byte 2)
Bit Meaning
0 to 6 0: The bits are always at "0".
7 1: There are more channel-specific diagnostic messages than can be represented in the
diagnostic frame.
9.1.3.3 Master PROFIBUS address
Definition
The PROFIBUS address of the
DP master is stored in the master PROFIBUS address diagnostic byte:
● which the DP slave has configured and
● has read and write access to the DP slave.
The master PROFIBUS address is located in byte 3 of the slave diagnosis.
FF
H
in byte 3
If the value FF
H
in byte 3 is given as the master PROFIBUS address, the DP slave is not
configured by the DP master.
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