Structure Of Slave Diagnostics - Siemens SIMATIC S5 Manual
Distributed i/o system
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Structure of slave
Slave diagnostics is structured as follows:
diagnostics
Table 9-6 Structure of slave diagnostics
6 ... 39
Structure of
Station status 1 provides information on the DP slave. The structure is as
station status 1
follows:
Table 9-7 Structure of station status 1
Bit
Meaning
0
1: DP slave not addressable by DP master.
1
1: DP slave not ready for data exchange.
2
1: The configuration data sent by the DP master
to the DP slave does not match the DP slave
configuration.
3
1: Station, module and/or channel diagnostic
data is present (depends on type of DP
slave).
4
1: Function not supported, e.g. the control
command FREEZE or SYNC.
5
1: DP master cannot interpret response of slave.
6
1: DP slave type does not match
parameterization in COM ET 200 Windows.
7
1: DP slave parameterized by a DP master other
than that currently accessing the DP slave.
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
IM 308-C – addressing, diagnostics and use of the FB IM308C
Byte
0
Station status 1
1
Station status 2
2
Station status 3
3
Master-station number
4
Manufacturer ID (high byte)
5
Manufacturer ID (low byte)
Other slave-specific diagnostics (station, module or
channel diagnostics, depending on the DP slave, see
Sections 9.4.1 and 9.4.2)
Is station number of DP slave correct?
Bus connector correctly seated?
Voltage applied to DP slave?
RS 485 repeater correctly configured?
Reset DP slave
Wait, because DP slave is powering up.
Is correct station type or correct DP slave configuration
entered in COM ET 200 Windows?
You can read the diagnostic data. For notes on the
content of the diagnostic data, see the manuals on the
DP slaves and Sections 9.4.1 and 9.4.2.
Check parameterization.
Check physical bus characteristics.
Is correct station type entered in
COM ET 200 Windows?
Bit is always 1 if, for example, you are currently
accessing the DP slave from the PG or another DP
master.
The station number of the parameterization master is in
the "Master-station number" diagnostic byte.
Meaning
Remedy
Recommended
data format
KM
KM
KM
KF
KH
KH
KH
9-17
9
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