Alarm, error and system messages
9.1 PROFIBUS DP
ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08
201
Structure of station status 2 (byte 1)
Bit
Meaning
0
1: The DP slave has to be reparameterized.
1
1: A diagnostic message is pending. The DP slave will not operate until the error is
cleared (static diagnostic message).
2
1: This bit is always "1" in the DP slave.
3
1: Response monitoring is enabled for this DP slave.
4
1: The DP slave has received a "FREEZE" control command
1
.
5
1: The DP slave has received a "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 only updated if a further diagnostic message changes.
Structure of station status 3 (byte 2)
Bit
Meaning
0 to 6 0: Bits are always "0".
7
1: Insufficient memory on the DP slave for the number of pending diagnostic messages.
The DP master is unable to enter all diagnostic messages it received from the DP slave
in its diagnostic buffer (channel-specific diagnostics).
9.1.7
Master PROFIBUS address
Definition
The DP master's PROFIBUS address is stored in the master PROFIBUS address
diagnostics byte:
●
that has parameterized the DP slave and
●
that has read and write access to the DP slave.
The master PROFIBUS address is stored in byte 3 of the slave diagnostic data.