it depends what do you need to do with this data and what kind of application it is
ofc it’s much easier to parse data and make get/post requests in NodeRED, but if you need to use special modules in PFC200, then you should use Codesys:
- WagoAppHTTP.FbHTTP_Client_Curl (WAGO library, easy to use, but response is in STRING, so there are some problems with special characters)
- Web Client SL (from Codesys, but its more complicated)
In CC100 you can also use serial and I/O without problems with NodeRED if you turn off runtime.
In PFC200 you can also use simple I/O if you disable runtime and run Docker image with WAGO/pfc-modbus-server: Docker Image to run PFC IO points as Modbus IO but you can use special modules (called mailbox modules) like DALI/KNX/RS