S7-400 hardware diagnostics?

[n_lev]

Hi!

Has anyone implemented a S7-400 hardware diagnostics in WinCC OA?

I have 5 redundant S7-400 pairs and a lot of remote I/O.
Ideally I'd like to have a page with all of that hardware shown and highlighted when there are faults, etc.
Do I have to do all that manually or there is a way to autogenerate this stuff from S7 project somehow?

[leoknipp]

Hello,

the status information for the SL-PLCs is written to the internal _S7_Conn-datapoints.
If you want to show this information in your WinCC OA project you can create a reference panel which refers to the S7-connection. For every S7-connection this panel is added to the "main"-panel using the S7-connection as $-parameter.
At the online help for the S7-driver you can get the information which dp-elements are used for the status information (chapter "Internal data points of the S7 driver").

Best Regards
Leopold Knipp
Senior Support Specialist

[n_lev]

Thanks Leopold!

This will actually give me the info on WinCC OA to PLC connections as far ad I know.'
What I'm a really interested in is an actual PLC diagnostics (CPU errors, Profibus nodes, I/O cards, etc.)

[leoknipp]

Hello,

at the internal datapoint you get status information concerning the connection state and basic information for the CPU state. To get the CPU information the config-entry ReadOpState
= "Y" has to be set.
If an error is reported you can also read the current error code. A list of common errors and their description you can find at the WinCC OA online help.

Maybe you can use a SNMP-communication to get additional information for the hardware/PLC.

Best Regards
Leopold Knipp
Senior Support Specialist

[n_lev]

Thanks Leopold,

I'll look into the SNMP option as well