beckhoff TS4100 — 5.4.10 FB_CTRL_PID_EXT_SPLITRANGE

PLC-API ! The default setting for the two inputs bPInTheFeedbackPath and bDInTheFeedbackPath is FALSE . The PID controller then acts as a standard PID controller in additive form. Additional functions: Switching off the I component in the Outer Window Integration of the system deviation is halted if the system deviation is greater than the fOuterWindow parameter. In this way it is possible to prevent an extremely large I component from developing if the system deviation is large, since this could lead to a marked overshoot. If it is not wanted, the function can be disabled by setting fOuterWindow := 0.

Linear reduction of the I component in the Inner Window With this function it is possible to drive the I component linearly down to zero in the range specified by the fInnerWindow parameter. If it is not wanted, the function can be disabled by setting fInnerWindow := 0. Output dead band If the parameter fDeadBandOutput is set > 0, the output is set to zero when it is within the range of [ - fDeadBandOutput ... fDeadBandOutput ]. Input dead band If the parameter fDeadBandInput is set > 0 then the output is held constant for as long as the system deviation remains within the range of [ -fDeadBandInput ... fDeadBandInput ]. Step response: TS4100 63 Version: 1.1