Additional functions
AS-i diagnosis via Profibus DP
12-1
12 Additional
functions
12.1
AS-i diagnosis via Profibus DP
12.1.1 Digital
inputs
The AS-i master status information in the first byte of the digital input data of the single/A slaves
contains master flags of the corresponding AS-i system:
Byte 0
Bit 7
Bit 5
Bit 5
Bit 4
PLC running in
the controllere
configuration error
in the AS-i circuit
no AS-i slave
detected
periphery faults
12.1.2 Digital
outputs
The AS-i master control information in the first byte of the digital output data of the single/A slaves
controls the stored diagnostic information:
Byte 0
Bit 7
Bit 5
Bit 5
Bit 4
reserved
reserved
reset of the stored
diagnostic data
activate transfer of
the stored diagnostic
data
If the bits 4 and 5 of the control information (byte 37) are set to 0 (default), the extended diagnosis
contains the current system states. If short-time faults are to be detected as well, the controllere can
be prompted via bit 4 to store the error states. This storage is reset by bit 5 or by switching off the
controllere.
This means if bit 4 is set and a configuration error occurs with a slave, the corresponding bit in the
extended device diagnosis remains set even if the slave is correctly detected again.
If - as described in the preceding section - the parameter "Extended Profibus Diag." was set to
"Disabled" (byte 37 bit 5 = FALSE), the controllere transmits no extended device-specific diagnostic
data. The controllere only transmits the standard diagnostic data which each Profibus DP slave must
at least supply (the first 6 bytes).
In some plants, jitters (
→
,
) in the Profibus DP cycle time - which
occur for example for diagnostic calls - are not allowed, so that in these cases the plant diagnosis is
made via I/O data even if this extends the DP cycle time.
Содержание Ecomat 300 AC1355
Страница 8: ...8 15 Terms abbreviations 15 1 16 Index 16 1 ...
Страница 12: ...On this manual Overview where is what 1 4 ...
Страница 14: ...Safety instructions Functions and features 2 2 ...
Страница 16: ...System requirements Required accessories 3 2 ...
Страница 18: ...Getting started Set up Profibus DPV1 4 2 ...
Страница 24: ...Menu Main menu Fieldbus Setup 6 4 ...
Страница 52: ...Set up Finish set up 7 28 ...
Страница 76: ...DP module 7 Command channel Module 7 command 63dec 3Fhex no operation command without function 8 24 ...
Страница 226: ...The DPV1 command channel DPV1 command 105dec 69hex read the device properties of the controllere 11 72 ...
Страница 238: ...Technical data Profibus DP interface 13 2 ...
Страница 246: ...Terms abbreviations 15 6 ...
Страница 248: ...Index 16 2 System Save parameters 12 10 Target 15 5 TFR Register 14 2 Troubleshooting 14 1 Watchdog 15 5 ...