Best posts made by Matt

@martin-kudláček Okay, thanks. After posting yesterday I managed to figure out the communication errors I was getting, so preventing the NaNs from messing up the chart is less of an issue now.

Thanks, @tomas_hora. I've just gone ahead and written my own in ST, based off the custom serial protocol example. I'm not sure if that sample actually works for serial communications, but for TCP I had to split Case 3 into 2 cases:

3:
	if io.getportstatus(handle) = 0 then 
		state := 4;
	end_if;
	
4:
	received := io.readport(handle, adr dataRecv[0], 100);
	if received > 0 THEN
		output_string := bytes_to_string(adr dataRecv[0], received);
		output_length := len(output_string);
		command_out := command_in;
		last_output_time := getutctime();
		state:=5; 
	END_IF;

Not doing this seemed to result in the read buffer being reset before the bytes could be read.