I need help with PID settings

1

I try to set the PID , but failed.
For example：

  1. Cool
    IF TEMP > TEMPS + BIAS THEN ABOVE OUTPUT //PID+
  2. Hot
    IF TEMP < TEMPS - BIAS THEN BELOW OUTPUT //PID-
  3. IF ABS(TEMP-TEMPS)<BAIS THEN OUTPUT=OUTPUT //PID=PID
    How to set this Function ?
2

Try this:

10 COOLVLV = PID1 <The cooling valve will follow a PID set up in cooling mode.

20 HEATVLV = PID2 <The heating valve will follow a PID set up in heating mode.

30 REM ***** CLOSE THE VALVES WHEN THE FAN IS NOT RUNNING *****

40 IF NOT FANSTAT THEN COOLVLV = 0

50 IF NOT FANSTAT THEN HEATVLV = 0