Structure Of Station Status 1 (Byte 0) - Siemens CPU 313C Hardware And Installation Manual

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Table 11-13 Structure of station status 1 (byte 0)
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0  DP slave cannot be addressed by DP master.
1  DP slave is not ready for data exchange.
2  Configuration data sent by DP master to the DP
slave is inconsistent with slave configuration.
3  Diagnostic interrupt, generated by a RUN to
STOP transition on the CPU or by the SFB 75
 Diagnostic interrupt, generated by a STOP to
RUN transition on the CPU or by the SFB 75
4  Function not supported; e.g. changing the DP
address at software level
5  This bit is always "0".
6  DP slave type inconsistent with software
configuration.
7  DP slave was configured by a DP master other
than the master currently accessing the slave.
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Table 11-14 Structure of station status 2 (byte 1)
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0  The DP slave requires new parameters and configuration.
1  A diagnostic message was received. The DP slave cannot resume operation until the error
has been cleared (static diagnostic message).
2  This bit is always "1" if a DP slave exists with this DP address.
3  The watchdog monitor is enabled on this DP slave.
4  DP slave has received control command "FREEZE".
5  DP slave has received control command "SYNC".
6  This bit is always "0".
7  DP slave is disabled, that is, it has been excluded from cyclic processing.
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•
Is the correct DP address set on the DP
slave?
•
Is the bus connector in place?
•
Does the DP slave have power?
•
Correct configuration of the RS485
Repeater?
•
Perform a reset on the DP slave.
•
Wait for the slave to complete start-up.
•
Was the software set for the correct
station type or DP slave configuration?
• You can read the diagnostic data.
•
Check configuration data.
• -
•
Was the software set for the right station
type? (parameter assignment error)
•
The bit is always 1 if, for example, you are
currently accessing the DP slave via PG or
a different DP master.
The configuring master's DP address is
located in the "Master PROFIBUS address"
diagnostics byte.
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