RESTful interface for WinCC OA?

[fandersen]

Hello,

does somebody know if there is a RESTful interface for WinCC OA to query DP status with a simple HTTP-GET request?

E.g.

http://yourserver/get_value?some_dp/alarms/limitswitch


Cheers,
Florian

[leoknipp]

Hello,

in WinCC OA a HTTP-server functionality is available.
For details please have a look at the online help: Special functions --> HTTP Server.

Best Regards
Leopold Knipp
Senior Support Specialist

[fandersen]

Thanks, that's what I was looking for. Just creating a simple webpage with a placeholder for the dpe parameter and as a result you get e.g. the actual value which you can process further.

[kilianvp]

Helps tells me POST is supported but i cant find a example how to use it

[mkoller]

It is explained in "httpConnect". You register your callback with httpConnect() and this gets called when it receives a POST message where data is passed to the callback.