VIPA System 200V IM Series, Manual

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Chapter 3 Profibus DP
Manual VIPA System 200V
3-48 HB97E - IM - Rev. 06/29
IM 253-xDPx0 - DP-V0 slave - Diagnostic functions
Profibus DP provides an extensive set of diagnostic functions for quick
error localization. Diagnostic messages are transferred via the bus and
collected by the master.
The most recent 100 diagnostic messages along with a time stamp are
stored in RAM res. saved to the Flash of every VIPA Profibus slave. These
can be analyzed by means of software.
Please call the VIPA hotline for this purpose.
The system also stores diagnostic messages like the status "Ready" or
"DataExchange". These are not send to the master.
The contents of the diagnostic RAM is saved by the Profibus slave in a
Flash-ROM, every time the status changes between "Ready" and
"DataExchange". At restart it deposits the data back to the RAM.
You can manually save the diagnostic data in Flash-ROM by changing the
address switch to 00 during "DataExchange" for a short while.
If a power failure or a voltage drop is detected, a time stamp is saved in the
EEPROM. If there is still enough voltage left, the diagnostic data is
transferred to the master.
At the next startup the time stamp in the EEPROM is used to generate an
undervoltage/power-off diagnostic message and saved to the diagnostic
RAM.
At deployment of a redundant slave, the diagnostic telegram is extended
with an 8Byte sized redundant state. This diagnostic addition is not inter-
nally stored. By additionally configuring the state module "State byte
IM253-2DP50" as last "module" (most slot number), you are able to include
2Byte of the redundant state into the peripheral area.
This virtual state "module" is available from GSD version 1.30 on.
Overview
Internal diagnostic
system messages
Saving diagnostic
data manually
Diagnostic
message in case
of a power failure
Diagnostic
addition at
IM 253DPR