Plc Libraries; Function Block; Fb_Ctrl_Tempcontroller - Beckhoff TwinCAT 3 Manual

5

PLC libraries

5.1

Function Block

5.1.1

FB_CTRL_TempController

The temperature controller block FB_CTRL_TempController has a variety of inputs and outputs that are
described below. All the controller's parameters are passed to it via structures. The structures and enums
are defined here [} 33].
Function Block
VAR_INPUT
eCtrlMode : E_CTRL_MODE;
bSelSetpoint : BOOL;
fW1 : LREAL;
fW2 : LREAL;
fX : LREAL;
fYManual : LREAL;
bOpenThermocouple : BOOL; (* thermocouple *)
bReverseThermocouple : BOOL;
bBackVoltage : BOOL;
bLeakage : BOOL; (* heating system *)
bShortCircuit : BOOL;
bOpenCircuit : BOOL;
sParaControllerExternal : ST_CTRL_ParaController
END_VAR
VAR_IN_OUT
sControllerParameter : ST_CTRL_TempCtrlParameter; (* controller parameter set *)
END_VAR
VAR_OUTPUT
fYAnalog : LREAL;
bYPWMPos : BOOL;
bYPWMNeg : BOOL;
bYDigPos : BOOL;
bYDigNeg : BOOL;
dwAlarm : DWORD;
fMaxOverShoot : LREAL;
tStartUpTime : TIME;
eCtrlState : E_CTRL_STATE := eCTRL_STATE_IDLE;
sParaControllerInternal : ST_CTRL_ParaController;
bError : BOOL;
eErrorId : E_CTRL_ErrorCodes;
END_VAR
TC3 Temperature Controller Version: 1.1
PLC libraries
21