switch_test.bcsctrl

// A test file for switch statement code generation
control SwitchTestController {
    enum OperationMode {
        IDLE,
        HEATING,
        COOLING,
        ERROR
    }

    functionblock SwitchFB {
        inputs {
            var iMode: OperationMode;
            var iTemperature: REAL;
        }
        outputs {
            var oHeatingValue: REAL;
            var oCoolingValue: REAL;
            var oStatusMessage: STRING;
        }
        locals {
            var adjustedTemp: REAL;
        }
        logic {
            adjustedTemp = iTemperature * 1.05;
            
            switch (iMode) {
                case OperationMode.IDLE {
                    oHeatingValue = 0.0;
                    oCoolingValue = 0.0;
                    oStatusMessage = "System idle";
                }
                case OperationMode.HEATING {
                    oHeatingValue = adjustedTemp;
                    oCoolingValue = 0.0;
                    oStatusMessage = "Heating active";
                }
                case OperationMode.COOLING {
                    oHeatingValue = 0.0;
                    oCoolingValue = adjustedTemp;
                    oStatusMessage = "Cooling active";
                }
                default {
                    oHeatingValue = 0.0;
                    oCoolingValue = 0.0;
                    oStatusMessage = "Error state";
                }
            }
        }
    }

    unit TestSwitch {
        var mode: OperationMode = OperationMode.HEATING;
        var temperature: REAL = 22.5;
        var heatingValue: REAL;
        var coolingValue: REAL;
        var statusMsg: STRING;
        
        use SwitchFB(iMode: mode, iTemperature: temperature) -> 
            { oHeatingValue: heatingValue, oCoolingValue: coolingValue, oStatusMessage: statusMsg };
    }
}