Structure Of Station Status 2 - Siemens SIMATIC S5 Manual
Distributed i/o system
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IM 308-C – addressing, diagnostics and use of the FB IM308C
Structure of
station status 2
Structure of
station status 3
Structure of the
master-station
number
Structure of the
manufacturer ID
Slave diagnostics;
continued
9-18
Station status 2 provides additional information on the DP slave. The
structure is as follows:
Table 9-8 Structure of station status 2
Bit
0
1: DP slave must be re-parameterized.
1
1: A diagnostic message has been received. The DP slave cannot resume until
the error has been rectified (static diagnostic message).
2
1: Bit is always "1" if there is a DP slave with this station number.
3
1: Response monitoring is activated for this DP slave.
4
1: DP slave has received the "FREEZE" control command.
5
1: DP slave has received the "SYNC" control command.
6
0: Bit is always "0".
7
1: DP slave is deactivated, i.e. removed from current processing.
1
: Bit is not updated unless a second diagnostics message is modified.
Station status 3 is reserved and not relevant as regards the diagnosis of a DP
slave.
The master-station number consists of one byte:
Table 9-9 Structure of the master-station number
Bit
Meaning
0 to 7
Station number of the DP master which parameterized the DP
slave and which has read and write access to the DP slave.
See the manual on the DP slave for details of the manufacturer ID. The
manufacturer ID consists of two bytes.
This part of slave diagnostics depends on whether the DP slave is a DP stan-
dard slave or is in compliance with the DP Siemens standard:
Section
9.4.1
Slave-specific diagnostics for DP standard slaves
9.4.2
Slave-specific diagnostics for DP Siemens slaves
Meaning
1
1
Topic
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
Page
9-19
9-20
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