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0ffff9be2aece4d629204605a249b5c93577f056
Uniper_PLC/PLC/POUs/MAIN.TcPOU
Matthias Heisig 0ffff9be2a EMS communication and Voltage optimizations 
- Added data for EMS communication
- Added highest segment voltage for charging check
- Added lowest segment voltage for discharging check
2024-05-07 17:10:29 +02:00

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<?xml version="1.0" encoding="utf-8"?>
<TcPlcObject Version="1.1.0.1" ProductVersion="3.1.4024.12">
<POU Name="MAIN" Id="{bbd7302c-91ce-4697-9f4b-743f57ca5819}" SpecialFunc="None">
<Declaration><![CDATA[PROGRAM MAIN
VAR
_xEmergencyStopOk AT %I* : BOOL;
_xShowAckEmergencyStop AT %Q* : BOOL;
_xString1DCSafetyOk AT %I* : BOOL;
_xReleaseErrors : BOOL := TRUE;
_xReleaseLimitsErrors : BOOL := TRUE;
_xConfirmAlarms : BOOL;
_xEnableString : BOOL;
_xStartBalancing : BOOL;
_xCanChangeMode : BOOL := TRUE;
{attribute 'OPC.UA.DA' := '0'}
_afbStrings : ARRAY[0..1] OF FB_String[('String 1'), ('String 2')];
// Variable to detect charge status change
_eLastChargeStatus : E_CHARGE_STATUS;
// Variable to detect battery status change
_eLastBatteryStatus : E_BATTERY_STATUS;
// State machine state
_iState : INT;
_iStateSafetyCheck : INT;
_iStateBalancing : INT;
// Start safety check mode
_xStartSafetyCheck : BOOL;
// Auto remote and auto local power request
_rAutoPowerRequest : REAL;
// Internal inverter power
_rPowerInverter : REAL;
// Flag for zero power indication
_xNoPowerRequested : BOOL;
// Startup delay for error release during plc startup
_tonStartupDelay : TON := (PT := T#10S);
// Small delay for inverter shutdown
_tonBeginShutdown : TON := (PT := T#30S);
// Not all strings in automatic mode
_fbNoAutomaticModeAlarm : Fb_TcAlarm;
// Emergency stop not ok alarm
_fbEStopNotOk : FB_TcAlarm;
// First cycle tag
_xFirstCycle : BOOL := TRUE;
// ADS reader for modbus server data
_fbADSReader : ADSREAD;
// Timer for ADS read
_timADSReadTimer : TON;
// Release manual mode
_xReleaseManualMode : BOOL;
// Current internal set inverter power value
_diInternalPowerSetpoint : DINT;
_diSetpointActivePower : DINT;
// Current BMS control mode (Auto local, Auto remote, etc...)
// On restart star in manual mode (so the ems can not directly start the bms)
_eBMSControlMode : E_BMS_CONTROL_MODE := E_BMS_CONTROL_MODE.AUTO_LOCAL;
// UPS
_fbUPS : FB_S_UPS_BAPI;
// Safety
xSafetyRun AT %Q* : BOOL := TRUE;
xSafetyErrAck AT %Q* : BOOL;
xSafetyResterTaster AT %I* : BOOL;
// Hardware reset button
_xHarwareResetButton AT %I* : BOOL;
_xShowErrorOnButton AT %Q* : BOOL;
_tonHardwareResetButton : TON := (PT := T#1S);
_rtHardwareResetButton : R_TRIG;
_xErrorActive : BOOL;
// Battery in safety check mode
_xInSafetyCheckMode : BOOL;
// Battery full message
_fbBatteryFullMessage : FB_TcMessage;
_fbBatteryEmptyMessage : FB_TcMessage;
// Smallest segment voltage
_rSmallestSegmentVoltage : REAL;
// Highest segment voltage
_rHighestSegmentVoltage : REAL;
// Safety
_fbSafety : FB_Safety;
// DEBUG
_xRestart : BOOL;
_xDebug : BOOL;
_uiDebugCurrentString : UINT := 1;
_ModbusDebugTest : ST_MODBUS_REG_11;
_fbModbusRead : FB_MBReadRegs;
_iLength : WORD := 49;
bDebugTest : BOOL;
END_VAR
]]></Declaration>
<Implementation>
<ST><![CDATA[// ===============================
// DEBUG
IF _xRestart AND (_iState = 1010) THEN
GVL_MODBUS.stModbusEMSComm.stModbusReg12.diSetpointActivePower := 0;
_xConfirmAlarms := TRUE;
END_IF
IF _xRestart AND (_iState = 0) THEN
_xRestart := FALSE;
GVL_MODBUS.stModbusEMSComm.stModbusReg12.diSetpointActivePower := 1000;
END_IF
// DEBUG
// ===============================
IF _xFirstCycle THEN
_xFirstCycle := FALSE;
_fbBatteryFullMessage.CreateEx(stEventEntry := TC_EVENTS.BMSEvents.BatteryFull, 0);
_fbBatteryEmptyMessage.CreateEx(stEventEntry := TC_EVENTS.BMSEvents.BatteryEmpty, 0);
_fbEStopNotOk.CreateEx(stEventEntry := TC_EVENTS.BMSEvents.EmergencyStopNotOk, TRUE, 0);
END_IF
_xErrorActive := FALSE;
// Ack alarms from HMI
_xConfirmAlarms := GVL_SCADA.stAckAlarmsButton.xRequest;
IF GVL_SCADA.stAckAlarmsButton.xRequest THEN
GVL_SCADA.stAckAlarmsButton.xRequest := FALSE;
END_IF
// ===============================
// Safety
// ===============================
xSafetyErrAck := xSafetyResterTaster;
_xShowAckEmergencyStop := NOT _xEmergencyStopOk;
IF (NOT _xEmergencyStopOk) AND (NOT _fbEStopNotOk.bRaised) THEN
_fbEStopNotOk.Raise(0);
END_IF
IF _xEmergencyStopOk AND _fbEStopNotOk.bRaised THEN
_fbEStopNotOk.Clear(0, FALSE);
END_IF
IF _fbEStopNotOk.eConfirmationState = TcEventConfirmationState.WaitForConfirmation AND _xConfirmAlarms THEN
_fbEStopNotOk.Confirm(0);
END_IF
// ===============================
// Hardware reset button part 1
// ===============================
_tonHardwareResetButton(IN := _xHarwareResetButton);
_rtHardwareResetButton(CLK := _tonHardwareResetButton.Q);
// _xConfirmAlarms := TRUE;
// ===============================
// Handle Manual mode release
// ===============================
//IF _iState = 0 THEN
// _xReleaseManualMode := TRUE;
//ELSE
// _xReleaseManualMode := FALSE;
//END_IF
// ===============================
// Handle UPS events
// ===============================
_fbUPS(
sNetID:= '',
iPLCPort:= 851,
tTimeout:= DEFAULT_ADS_TIMEOUT,
eUpsMode:= eSUPS_WrPersistData_Shutdown,
ePersistentMode:= SPDM_2PASS,
tRecoverTime:= T#10S,
bPowerFailDetect=> ,
eState=> );
IF _xFirstCycle THEN
_xFirstCycle := FALSE;
_afbStrings[0].Name := 'String 1';
_afbStrings[1].Name := 'String 2';
END_IF
// Dely release of errors during PLC startup phase
_tonStartupDelay(IN := TRUE);
// Call string 1
_afbStrings[0](
stStringModuleVoltageConfig := GVL_CONFIG.stString1VoltageConfig,
xEnable := _xEnableString AND GVL_CONFIG.xDummy,
xStartBalancing := _xStartBalancing AND GVL_CONFIG.xDummy,
sInverterIP := GVL_CONFIG.sInverterIpString1,
rPowerInverter := _rPowerInverter,
xInSafetyCheckMode := _xInSafetyCheckMode,
stHMIInterface:= GVL_SCADA.stHMIInterface[0],
xEmergencyStopOk:= _xEmergencyStopOk,
xReleaseErrors:= _xReleaseErrors AND _tonStartupDelay.Q AND GVL_CONFIG.xDummy,
xReleaseLimitErrors:= _xReleaseLimitsErrors AND _tonStartupDelay.Q,
xReleaseManualMode := _xReleaseManualMode,
xConfirmAlarms:= _xConfirmAlarms,
xResetSafety := xSafetyResterTaster);
IF _afbStrings[0].xError THEN
_xErrorActive := TRUE;
END_IF
// Call string 2
_afbStrings[1](
stStringModuleVoltageConfig := GVL_CONFIG.stString2VoltageConfig,
xEnable := _xEnableString,
xStartBalancing := _xStartBalancing,
sInverterIP := GVL_CONFIG.sInverterIpString2,
rPowerInverter := _rPowerInverter,
xInSafetyCheckMode := _xInSafetyCheckMode,
stHMIInterface:= GVL_SCADA.stHMIInterface[1],
xEmergencyStopOk:= _xEmergencyStopOk,
xReleaseErrors:= _xReleaseErrors AND _tonStartupDelay.Q,
xReleaseLimitErrors:= _xReleaseLimitsErrors AND _tonStartupDelay.Q,
xReleaseManualMode := _xReleaseManualMode,
xConfirmAlarms:= _xConfirmAlarms,
xResetSafety := xSafetyResterTaster);
IF _afbStrings[1].xError THEN
_xErrorActive := TRUE;
END_IF
// ===============================
// Hardware reset button part 2
// ===============================
_xShowErrorOnButton := _xErrorActive;
// HMI Feedback
GVL_SCADA.stHMIInterface[0].rVoltage := _afbStrings[0].rCurrentVoltage;
IF _afbStrings[0].eStatus = E_COMPONENT_STATUS.ON THEN
IF _iState = 30 AND _rPowerInverter > 0 THEN
GVL_SCADA.stHMIInterface[0].eStatus := E_COMPONENT_STATUS.DISCHARGING;
ELSIF _iState = 30 AND _rPowerInverter < 0 THEN
GVL_SCADA.stHMIInterface[0].eStatus := E_COMPONENT_STATUS.CHARGING;
ELSE
GVL_SCADA.stHMIInterface[0].eStatus :=_afbStrings[0].eStatus;
END_IF
ELSE
GVL_SCADA.stHMIInterface[0].eStatus :=_afbStrings[0].eStatus;
END_IF
// ===============================
// Read modbus request count
// ===============================
_timADSReadTimer(IN := NOT _fbADSReader.BUSY, PT := T#200MS);
_fbADSReader(
NETID:= '',
PORT:= 10500,
IDXGRP:= 16#2000,
IDXOFFS:= 1,
LEN:= 4,
DESTADDR:= ADR(GVL_MODBUS.stModbusEMSComm.stModbusReg11.udiLifeMessage),
READ:= _timADSReadTimer.Q,
TMOUT:= T#1S,
BUSY=> ,
ERR=> ,
ERRID=> );
_fbModbusRead(
sIPAddr:= '127.0.0.1',
nTCPPort:= 502,
nUnitID:= 16#FF,
nQuantity:= 48,
nMBAddr:= 11000,
cbLength:= SIZEOF(_ModbusDebugTest),
pDestAddr:= ADR(_ModbusDebugTest),
bExecute:= bDebugTest,
tTimeout:= T#5S,
bBusy=> ,
bError=> ,
nErrId=> ,
cbRead=> );
// ===============================
// Copy data to modbus registers
// ===============================
// Modbus current inverter values
GVL_MODBUS.stModbusEMSComm.stModbusReg11.diCurrentActivePower := REAL_TO_DINT(_afbStrings[_uiDebugCurrentString].stInverterData.rActACPower);
GVL_MODBUS.stModbusEMSComm.stModbusReg11.diCurrentReactivePower := REAL_TO_DINT(_afbStrings[_uiDebugCurrentString].stInverterData.rActReactivePower);
// Set Modbus mirror values
GVL_MODBUS.stModbusEMSComm.stModbusReg11.diSetpointActivePowerMirror := GVL_MODBUS.stModbusEMSComm.stModbusReg12.diSetpointActivePower;
GVL_MODBUS.stModbusEMSComm.stModbusReg11.rSetpointCosPhiMirror := GVL_MODBUS.stModbusEMSComm.stModbusReg12.rSetpointCosPhi;
// ===============================
// Calculate highest and lowest
// segment voltage
// ===============================
_rSmallestSegmentVoltage := _afbStrings[_uiDebugCurrentString].rSmallestSegmentVoltage;
_rHighestSegmentVoltage := _afbStrings[_uiDebugCurrentString].rHighestSegmentVoltage;
// ===============================
// State machine
// ===============================
CASE _eBMSControlMode OF
E_BMS_CONTROL_MODE.AUTO_REMOTE:
_xInSafetyCheckMode := FALSE;
_xReleaseManualMode := FALSE;
_rAutoPowerRequest := DINT_TO_REAL(GVL_MODBUS.stModbusEMSComm.stModbusReg12.diSetpointActivePower);
IF (GVL_SCADA.eRequestedControlMode <> _eBMSControlMode) AND (GVL_SCADA.xCanChangeControlMode) THEN
_eBMSControlMode := GVL_SCADA.eRequestedControlMode;
END_IF
SM_AUTO();
E_BMS_CONTROL_MODE.AUTO_LOCAL:
_xInSafetyCheckMode := FALSE;
_xReleaseManualMode := FALSE;
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eBatteryStatus := E_BATTERY_STATUS.TESTING;
_rAutoPowerRequest := DINT_TO_REAL(GVL_SCADA.stAutomaticModeHMI.diSetpointAutomatic);
IF (GVL_SCADA.eRequestedControlMode <> _eBMSControlMode) AND (GVL_SCADA.xCanChangeControlMode) THEN
_eBMSControlMode := GVL_SCADA.eRequestedControlMode;
END_IF
SM_AUTO();
E_BMS_CONTROL_MODE.MANUAL:
_xInSafetyCheckMode := FALSE;
_xReleaseManualMode := TRUE;
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eBatteryStatus := E_BATTERY_STATUS.MAINTENANCE;
IF (GVL_SCADA.eRequestedControlMode <> _eBMSControlMode) AND (GVL_SCADA.xCanChangeControlMode) THEN
_eBMSControlMode := GVL_SCADA.eRequestedControlMode;
END_IF
SM_MANUAL();
E_BMS_CONTROL_MODE.SAFETY_CHECK:
_xInSafetyCheckMode := TRUE;
_xReleaseManualMode := FALSE;
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eBatteryStatus := E_BATTERY_STATUS.MAINTENANCE;
IF (GVL_SCADA.eRequestedControlMode <> _eBMSControlMode) AND (GVL_SCADA.xCanChangeControlMode) THEN
_eBMSControlMode := GVL_SCADA.eRequestedControlMode;
END_IF
SM_SAFETY_CHECK();
E_BMS_CONTROL_MODE.CAPACITY_TEST:
_xInSafetyCheckMode := FALSE;
_xReleaseManualMode := FALSE;
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eBatteryStatus := E_BATTERY_STATUS.TESTING;
IF (GVL_SCADA.eRequestedControlMode <> _eBMSControlMode) AND (GVL_SCADA.xCanChangeControlMode) THEN
_eBMSControlMode := GVL_SCADA.eRequestedControlMode;
END_IF
SM_CAPACITY_TEST();
E_BMS_CONTROL_MODE.BALANCING:
_xInSafetyCheckMode := FALSE;
_xReleaseManualMode := FALSE;
IF (GVL_SCADA.eRequestedControlMode <> _eBMSControlMode) AND (GVL_SCADA.xCanChangeControlMode) THEN
_xStartBalancing := FALSE;
_eBMSControlMode := GVL_SCADA.eRequestedControlMode;
END_IF
SM_BALANCING();
END_CASE
GVL_SCADA.xCanChangeControlMode := _xCanChangeMode;
GVL_SCADA.eCurrentControlMode := _eBMSControlMode;
// Calculate current battery dc power
GVL_SCADA.diCurrentBatteryPower := REAL_TO_DINT(_afbStrings[0].stInverterData.rActDCPower + _afbStrings[1].stInverterData.rActDCPower);
_fbSafety();
// Reset automatic buttons
IF GVL_SCADA.stAutomaticModeHMI.stStartAutoButton.xRequest THEN
GVL_SCADA.stAutomaticModeHMI.stStartAutoButton.xRequest := FALSE;
END_IF
IF GVL_SCADA.stAutomaticModeHMI.stStopAutoButton.xRequest THEN
GVL_SCADA.stAutomaticModeHMI.stStopAutoButton.xRequest := FALSE;
END_IF
// Reset alarm confirmation
IF _xConfirmAlarms OR _rtHardwareResetButton.Q THEN
_xConfirmAlarms := FALSE;
END_IF]]></ST>
</Implementation>
<Action Name="SM_AUTO" Id="{b5166e16-4fea-442b-9560-02c156f9a9ad}">
<Implementation>
<ST><![CDATA[CASE _iState OF
0: // Idle
// Wait for power command
IF (ABS(_rAutoPowerRequest) > DINT_TO_REAL(GVL_CONFIG.diMinimumAbsPowerForEnable)) AND (NOT _afbStrings[_uiDebugCurrentString].xError) AND _afbStrings[_uiDebugCurrentString].xAllModulesInAutoMode THEN
_iState := 5;
_xCanChangeMode := FALSE;
END_IF
5: // Check if power command is within limits
IF _rAutoPowerRequest < DINT_TO_REAL(GVL_CONFIG.diMaxStringDischargePower)
AND _rAutoPowerRequest > DINT_TO_REAL(GVL_CONFIG.diMaxStringChargingPower) THEN
_xEnableString := TRUE;
_xStartBalancing := FALSE;
_iState := 10;
ELSE
// Set error bitmap flag
GVL_MODBUS.stModbusEMSComm.stModbusReg11.lwErrorBitmap.0 := 1;
// Goto error state
_iState := 1000;
END_IF
10: // Wait for string to be ready
IF _afbStrings[_uiDebugCurrentString].xReady AND (NOT _afbStrings[_uiDebugCurrentString].xError) THEN
_rPowerInverter := 0.0;
_iState := 30;
END_IF
IF _afbStrings[_uiDebugCurrentString].xError THEN
_xEnableString := FALSE;
GVL_SCADA.stAutomaticModeHMI.diSetpointAutomatic := 0;
_iState := 45;
END_IF
IF (ABS(_rAutoPowerRequest) < DINT_TO_REAL(GVL_CONFIG.diMinimumAbsPowerForEnable)) THEN
_xEnableString := FALSE;
_iState := 45;
END_IF
30: // String and inverter enabled
// Set inverter power to modbus requested power
_rPowerInverter := _rAutoPowerRequest;//DINT_TO_REAL(GVL_MODBUS.stModbusEMSComm.stModbusReg12.diSetpointActivePower);
// Check if the battery should still be active
IF (_rAutoPowerRequest = 0.0) THEN
_xNoPowerRequested := TRUE;
ELSE
_xNoPowerRequested := FALSE;
END_IF
// Set battery status
IF _rAutoPowerRequest > 0 THEN
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus := E_CHARGE_STATUS.DISCHARGING;
ELSIF _rAutoPowerRequest < 0 THEN
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus := E_CHARGE_STATUS.CHARGING;
ELSE
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus := E_CHARGE_STATUS.UNDEFINED;
END_IF
// Add small delay before shutdown by EMS is detected
_tonBeginShutdown(IN := _xNoPowerRequested);
// shutdown triggered from EMS
IF _tonBeginShutdown.Q THEN
_tonBeginShutdown(In := FALSE);
// Set inverter to zero power
_rPowerInverter := 0.0;
// Start string shutdown
_xEnableString := FALSE;
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus := E_CHARGE_STATUS.UNDEFINED;
GVL_MODBUS.stModbusEMSComm.stModbusReg10.uiActiveParallelMembers := 0;
_iState := 35;
END_IF
// Shutdown triggered by battery fully charged
IF GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus = E_CHARGE_STATUS.CHARGING AND ((_afbStrings[_uiDebugCurrentString].stInverterData.rActDCVoltage >= GVL_CONFIG.rStringFullyChargedVoltage) OR _rHighestSegmentVoltage >= GVL_CONFIG.rMaximumUnitVoltage) THEN
_tonBeginShutdown(In := FALSE);
// Send message
_fbBatteryFullMessage.Send(0);
// Set inverter to zero power
_rPowerInverter := 0.0;
// Set local remote to zero power
GVL_SCADA.stAutomaticModeHMI.diSetpointAutomatic := 0;
// Start string shutdown
_xEnableString := FALSE;
// Change battery status
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus := E_CHARGE_STATUS.FULL;
GVL_MODBUS.stModbusEMSComm.stModbusReg10.uiActiveParallelMembers := 0;
_iState := 35;
END_IF
// Shutdown triggered by battery empty
IF GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus = E_CHARGE_STATUS.DISCHARGING AND ((_afbStrings[_uiDebugCurrentString].stInverterData.rActDCVoltage <= GVL_CONFIG.rStringEmptyVoltage) OR _rSmallestSegmentVoltage <= GVL_CONFIG.rMinimumUnitVoltage) THEN
_tonBeginShutdown(In := FALSE);
// Send Message
_fbBatteryEmptyMessage.Send(0);
// Set local remote to zero power
GVL_SCADA.stAutomaticModeHMI.diSetpointAutomatic := 0;
// Set inverter to zero power
_rPowerInverter := 0.0;
// Start string shutdown
_xEnableString := FALSE;
// Change battery status
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus := E_CHARGE_STATUS.EMPTY;
GVL_MODBUS.stModbusEMSComm.stModbusReg10.uiActiveParallelMembers := 0;
_iState := 35;
END_IF
// Check for errors
IF _afbStrings[_uiDebugCurrentString].xError THEN
_xEnableString := FALSE;
_tonBeginShutdown(In := FALSE);
GVL_SCADA.stAutomaticModeHMI.diSetpointAutomatic := 0;
_iState := 45;
END_IF
35: // Wait for string to be in shutdown discharge mode
IF _afbStrings[_uiDebugCurrentString].xInShutdownDischargeMode THEN
// Check if we are allowed to discharge during shutdown with inverter
IF GVL_CONFIG.xShutdownDischargeWithInverter THEN
_iState := 40;
ELSE
_rPowerInverter := 0.0;
_xEnableString := FALSE;
GVL_SCADA.stAutomaticModeHMI.diSetpointAutomatic := 0;
_xCanChangeMode := TRUE;
_iState := 45;
END_IF
END_IF
// Check for errors
IF _afbStrings[_uiDebugCurrentString].xError THEN
_iState := 1000;
END_IF
40: // Wait for inverter discharge done
IF _afbStrings[_uiDebugCurrentString].xShutdownDischargeAllowed THEN
_rPowerInverter := GVL_CONFIG.rAbsShutdownDischargePower;
ELSE
_rPowerInverter := 0.0;
GVL_SCADA.stAutomaticModeHMI.diSetpointAutomatic := 0;
_xEnableString := FALSE;
_xCanChangeMode := TRUE;
_iState := 45;
END_IF
// Check for errors
IF _afbStrings[_uiDebugCurrentString].xError THEN
_iState := 1000;
END_IF
// Restart if possible
IF (ABS(_rAutoPowerRequest) > DINT_TO_REAL(GVL_CONFIG.diMinimumAbsPowerForEnable)) AND (NOT _afbStrings[_uiDebugCurrentString].xError) AND _afbStrings[_uiDebugCurrentString].xAllModulesInAutoMode THEN
_iState := 5;
END_IF
45: // Wait for shutdown of string to be done
IF (NOT _afbStrings[_uiDebugCurrentString].xInShutdownDischargeMode) AND _afbStrings[_uiDebugCurrentString].xOff THEN
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eBatteryStatus := E_BATTERY_STATUS.OFF;
_iState := 0;
END_IF
// Restart if possible
IF (ABS(_rAutoPowerRequest) > DINT_TO_REAL(GVL_CONFIG.diMinimumAbsPowerForEnable)) AND (NOT _afbStrings[_uiDebugCurrentString].xError) AND _afbStrings[_uiDebugCurrentString].xAllModulesInAutoMode THEN
_iState := 5;
END_IF
// Check for errors
// IF _afbStrings[0].xError OR _fbInverter.xError THEN
// _xEnableInverter := FALSE;
// _iState := 1000;
//END_IF
1000: // Error state
_xEnableString := FALSE;
_rPowerInverter := 0.0;
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eBatteryStatus := E_BATTERY_STATUS.ERROR;
_iState := 1010;
1010: // Wait for reset from error state
IF (_rAutoPowerRequest = 0.0) AND (NOT _afbStrings[_uiDebugCurrentString].xError) AND _xConfirmAlarms THEN
// Reset modbus error register
GVL_MODBUS.stModbusEMSComm.stModbusReg11.lwErrorBitmap := 0;
// Reset modbus error flag
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eBatteryStatus := E_BATTERY_STATUS.OFF;
// Goto init state
_iState := 0;
_xCanChangeMode := TRUE;
END_IF
END_CASE]]></ST>
</Implementation>
</Action>
<Action Name="SM_BALANCING" Id="{f1f90032-de29-468d-899c-50bfb54e48e0}">
<Implementation>
<ST><![CDATA[CASE _iStateBalancing OF
0: // Test
IF GVL_SCADA.stAutomaticModeHMI.stStartAutoButton.xRequest THEN
_iStateBalancing := 5;
END_IF
// GVL_SCADA.stAutomaticModeHMI.stStartAutoButton.xRelease := (NOT _afbStrings[_uiDebugCurrentString].xError) AND _afbStrings[_uiDebugCurrentString].xAllModulesInAutoMode;
5: // Check for start conditions
IF (NOT _afbStrings[_uiDebugCurrentString].xError) AND _afbStrings[_uiDebugCurrentString].xAllModulesInAutoMode THEN
_xCanChangeMode := FALSE;
_xEnableString := FALSE;
_xStartBalancing := TRUE;
_iStateBalancing := 10;
END_IF
10: // Wait for balancing to be done
IF _afbStrings[_uiDebugCurrentString].xBalancingDone THEN
_xCanChangeMode := TRUE;
_xStartBalancing := FALSE;
_iStateBalancing := 0;
END_IF
IF _afbStrings[_uiDebugCurrentString].xError THEN
_iStateBalancing := 900;
_xStartBalancing := FALSE;
END_IF
IF GVL_SCADA.stAutomaticModeHMI.stStopAutoButton.xRequest THEN
_xStartBalancing := FALSE;
_xCanChangeMode := TRUE;
_iStateBalancing := 0;
END_IF
900: // Error state
IF _xConfirmAlarms AND (NOT _afbStrings[_uiDebugCurrentString].xError) THEN
_xCanChangeMode := TRUE;
_iStateBalancing := 0;
END_IF
END_CASE]]></ST>
</Implementation>
</Action>
<Action Name="SM_CAPACITY_TEST" Id="{705978cf-2798-4a38-8f24-148e2ec1d46e}">
<Implementation>
<ST><![CDATA[]]></ST>
</Implementation>
</Action>
<Action Name="SM_MANUAL" Id="{ddef276e-9f4f-4258-b863-d254dd94b701}">
<Implementation>
<ST><![CDATA[_xCanChangeMode := _afbStrings[0].xAllModulesInAutoMode;]]></ST>
</Implementation>
</Action>
<Action Name="SM_SAFETY_CHECK" Id="{6d8e5993-cf32-4980-9ea3-c1fbfa4b8601}">
<Implementation>
<ST><![CDATA[// Start on start button pressed
IF GVL_SCADA.stAutomaticModeHMI.stStartAutoButton.xRequest THEN
// Only start if everything is ok
IF _afbStrings[_uiDebugCurrentString].xAllModulesInAutoMode AND (NOT _afbStrings[_uiDebugCurrentString].xError) THEN
_xStartSafetyCheck := TRUE;
END_IF
END_IF
IF GVL_SCADA.stAutomaticModeHMI.stStopAutoButton.xRequest THEN
_xStartSafetyCheck := FALSE;
END_IF
CASE _iStateSafetyCheck OF
0: // Idle
// Wait for start command
IF _xStartSafetyCheck AND _afbStrings[_uiDebugCurrentString].xAllModulesInAutoMode THEN
_xEnableString := TRUE;
_iStateSafetyCheck := 10;
_rPowerInverter := 0.0;
_xCanChangeMode := FALSE;
END_IF
10: // Wait for string to be ready
IF _afbStrings[_uiDebugCurrentString].xReady AND (NOT _afbStrings[_uiDebugCurrentString].xError) THEN
_iStateSafetyCheck := 30;
END_IF
IF NOT _xStartSafetyCheck THEN
_xEnableString := FALSE;
_iStateSafetyCheck := 0;
END_IF
// Check for errors
IF _afbStrings[_uiDebugCurrentString].xError THEN
_iStateSafetyCheck := 1000;
END_IF
30: // String enabled and dc circuit breaker closed
// Check if the battery should still be active
IF (NOT _xStartSafetyCheck) THEN
// Start string shutdown
_xEnableString := FALSE;
GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus := E_CHARGE_STATUS.UNDEFINED;
GVL_MODBUS.stModbusEMSComm.stModbusReg10.uiActiveParallelMembers := 0;
_iStateSafetyCheck := 45;
_xCanChangeMode := TRUE;
END_IF
// Check for errors
IF _afbStrings[_uiDebugCurrentString].xError THEN
_xEnableString := FALSE;
_iStateSafetyCheck := 1000;
END_IF
45: // Wait for shutdown of string to be done
IF _afbStrings[_uiDebugCurrentString].xOff THEN
_iStateSafetyCheck := 0;
END_IF
// Check for errors
IF _afbStrings[_uiDebugCurrentString].xError THEN
_xEnableString := FALSE;
_iStateSafetyCheck := 1000;
END_IF
1000: // Error state
_xEnableString := FALSE;
_rPowerInverter := 0.0;
_iStateSafetyCheck := 1010;
1010: // Wait for reset from error state
IF (NOT _afbStrings[_uiDebugCurrentString].xError) AND (NOT _xStartSafetyCheck) THEN
// Goto init state
_iStateSafetyCheck := 0;
_xCanChangeMode := TRUE;
END_IF
END_CASE]]></ST>
</Implementation>
</Action>
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</LineIds>
</POU>
</TcPlcObject>
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