AH500 Programming Manual 6-174 Data Setting Device number Function Description type range the sampling time is the same as the interval between the timed interrupt tasks. K p REAL Proportional gain (K ) p Range of positive single- precision floating- point numbers It is the magnified proportional value of the error between the SV and the PV. If the magnified proportional value of the error is less than 0, the K p will be count as 0. K i REAL Integral gain (K) i Range of positive single- precision floating- point numbers It is the integral gain (K). If the i integral gain is less than 0, the K will be count i as 0.
K d REAL Derivative gain (K ) d Range of positive single- precision floating- point numbers It is the derivative gain (K ). If the d derivative gain is less than 0, the K will be d count as 0. PID DIR _ BOOL PID forward/reverse direction True: Reverse action (E=SV-PV) False: Forward action (E=PV-SV) ERR DBW _ REAL Range within which the error value is count as 0 Range of single- precision floating- point numbers The error value (E) is the difference between the SV and the PV. When the setting value is 0, the function is not enabled. For example, the E within the range between -5 and 5 will be count as 0 if the setting value is 5 or -5.