5-5
ET 200L Distributed I/O Device
EWA-4NEB 780600902-05
5.2.2 Structure of Station Statuses 1 to 3, Master Station Number and
Manufacturer Identification
Station statuses 1 to 3 provide an overview of the status of a DP slave (refer
to Figure 5-1, bytes 0 to 2).
Station status 1 provides information about the DP slave and is structured as
follows:
Table 5-3 Structure of Station Status 1 (Byte 0)
Bit Meaning Action
0 1: The DP slave cannot be addressed by
the DP master.
S Correct PROFIBUS address set on ET 200L?
S Bus connector connected?
S Voltage at DP slave?
S RS 485 repeater set correctly?
S Supply voltage ON/ OFF performed on
ET 200L?
1 1: The DP slave is not yet ready to
exchange data.
S Wait, because the ET 200L is just being pow-
ered up.
2 1: The configuration data sent by the DP
master to the DP slave do not agree
with the installation of the DP slave.
S Correct station type or correct installation of
the ET 200L entered in the system configura-
tion software?
3 1: An external diagnosis exists. S Check the contents of the external diagnosis.
4 1: The requested function is not supported
by the DP slave.
S Check the configuration.
5 1: The DP master cannot interpret the
reply from the DP slave.
S Check the bus installation.
6 1: The DP slave type does not agree with
the software configuration.
S Correct station type entered in the system con-
figuration software?
7 1: Parameters have been assigned to the
DP slave by a different DP master from
that which currently has access to the
DP slave.
S The bit is always 1 if you are in the process of
accessing, for example, the ET 200L with the
PU or another DP master.
The PROFIBUS address of the parameteriza-
tion master is located in the ”master PROFI-
BUS address” diagnostic byte.
Definition of Sta-
tion Status
Structure of Sta-
tion Status 1
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