VIPA System 300V - IM 353-1 DP00 - DP-V0 Slave - Diagnostic Functions

Chapter 3 Profibus DP Manual VIPA System 300V
3-16 HB130E - IM - Rev. 08/26
IM 353-1DP00 - DP-V0 slave - Diagnostic functions
Profibus DP is provided with an extensive set of diagnostic functions that
can be used to locate problems quickly and effectively. Diagnostic
messages are transferred via the bus and collected by the master.
The DP slave transmits diagnostic data when requested by the master or
when an error occurs. In case of an diagnostic interrupt, the CPU branches
into OB 82. You may evaluate the diagnostic via SFC 13.
Additionally the DP slave stores the last 100 interrupt messages with a time
stamp in a RAM res. in the Flash and may be evaluated with the help of
software.
Please call the VIPA hotline for this!
With the short setting of 00 at the address lever you may save the
diagnostic data in the Flash-ROM during "DataExchange".
The system also stores diagnostic messages like the states "Ready" res.
"DataExchange" that are not passed on to the master.
With every status change between "Ready" and "DataExchange" the
Profibus slave stores the diagnostic-RAM content in a Flash-ROM and
writes it back to the RAM at every reboot.
At voltage failure res. decreasing voltage a time stamp is stored in the
EEPROM. If enough voltage is still left, a diagnostic output to the master
occurs.
At the next reboot an undervoltage/shut-down diagnostic message is
generated from the time stamp of the EEPROMs and is stored in the
Diagnostic-RAM.
Overview
Manual storage of
diagnostic data
Internal diagnostic
system messages
Diagnostic
messages at
voltage failure