PLC-API bError : Becomes TRUE, as soon as an error occurs. VAR_IN_OUT VAR_IN_OUT stParams : ST_CTRL_NOTCH_FILTER_PARAMS; END_VAR stParams : Parameter structure of the notch filter. This consists of the following elements: TYPE ST_CTRL_NOTCH_FILTER_PARAMS:STRUCT tCtrlCycleTime : TIME := T#0ms; (* controller cycle time [TIME] *) tTaskCycleTime : TIME := T#0ms; (* task cycle time [TIME] *) fNotchFreq : FLOAT := 0; (* [Hz] *) fBandwidth : FLOAT := 0; (* Bandwidth in Hz = fBandwidth*fNotchFreq *)END_STRUCTEND_TYPE tCtrlCycleTime : Cycle time with which the control loop is processed. This must be greater than or equal to the TaskCycleTime.
The function block uses this input value to calculate internally whether the state and the output values have to be updated in the current cycle. tTaskCycleTime : Cycle time with which the function block is called. If the function block is called in every cycle this corresponds to the task cycle time of the calling task. fNotchFreq : Notch frequency in Hz fBandwidth : Bandwidth related to the notch frequency: bandwidth in Hz = fNotchFreq * fBandwidth Requirements 5.5.8 FB_CTRL_PT1 The function block provides a PT1 transfer element in the functional diagram. Transfer function: TS4100 90 Version:
1.1 Development environment Target system type PLC libraries to be linked TwinCAT v2.8 PC (i386) TcControllerToolbox.lib TwinCAT v2.9, build 947 onwards BC [} 10] TcControllerToolbox.lb6 TwinCAT v2.9, build 956 onwards BX [} 10] TcControllerToolbox.lbx