Structure Of Station Status 1 (Byte 0) - Siemens S7-300 Installation Manual

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Table 11-13 Structure of station status 1 (byte 0)
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 DP slave cannot be addressed by DP master.
0
 DP slave is not ready for data exchange.
1
 Configuration data sent by DP master to the DP
2
slave is inconsistent with slave configuration.
 Diagnostic interrupt, generated by a RUN to
3
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
 Function not supported; e.g. changing the DP
4
address at software level
 This bit is always "0".
5
 DP slave type inconsistent with software
6
configuration.
 DP slave was configured by a DP master other
7
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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 The DP slave requires new parameters and configuration.
0
 A diagnostic message was received. The DP slave cannot resume operation until the error
1
has been cleared (static diagnostic message).
 This bit is always "1" if a DP slave exists with this DP address.
2
 The watchdog monitor is enabled on this DP slave.
3
 DP slave has received control command "FREEZE".
4
 DP slave has received control command "SYNC".
5
 This bit is always "0".
6
 DP slave is disabled, that is, it has been excluded from cyclic processing.
7
S7-300 Automation System, Hardware and Installation: CPU 312IFM - 318-2 DP
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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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