MQTT - reading json data

CODESYS
1

Hello, I started with the mqqt protocol and followed Wago’s tutorial on YouTube https://www.youtube.com/watch?v=FhdKcK8o0Ts. I have a working broker from which I can read data: STRING, INT etc., but I’m having trouble reading the array of values, for example:
“values”: [ 3928, 2993],

“raw_data”: [3928],

Can someone tell me if there’s a function for reading and the easiest way to do it? Thanks in advance.

2

There is WagoAppJSON library which should be helpfull. You can also use Codesys JSON library, but if you receive data without UTF8 special characters, I prefer to use WAGO library. In Sample Projects Sample Projects for CODESYS 3 | WAGO Download Center you can find examples