@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.
M
Best posts made by Matt
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RE: NaNs in HMI chart
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RE: SimpleParser documentation?
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.