PLC-API Step response: VAR_INPUT VAR_INPUT fIn : FLOAT; fManSyncValue : FLOAT; bSync : BOOL; eMode : E_CTRL_MODE; bHold : BOOL; END_VAR fIn : Input value of the PT1 element. fManSyncValue : Input value to which the PT1 element can be set, or that is issued at the output in manual mode. bSync : A rising edge at this input sets the PT1 element to the value fManSyncValue. eMode : Input that specifies the block's operating mode [ } 16] . bHold : A TRUE at this input will hold the internal state (and therefore also the output) constant at its current value, independently of the input value. VAR_OUTPUT VAR_OUTPUT fOut : FLOAT; eState : E_CTRL_STATE; eErrorId : E_CTRL_ERRORCODES; bError :
BOOL; END_VAR fOut : Output of the PT1 element. eState : State of the function block. eErrorId : Supplies the error number [ } 16] when the bError output is set. bError : Becomes TRUE, as soon as an error occurs. VAR_IN_OUT VAR_IN_OUT stParams : ST_CTRL_PT1_PARAMS; END_VAR stParams : Parameter structure of the PT1 element. This consists of the following elements: TS4100 91 Version: 1.1