FB_MBUS_KAM_Multical402

The function block FB_MBUS_KAM_Multical402 is used to read energy meters from Kamstrup.

The function block can only be executed together with the function block FB_MBUSKL6781().

	Further information See Operating principle of the function block

Inputs

VAR_INPUT
  usiAddress   : USINT;
  stSecAdr     : ST_MBUS_SecAdr;
  eBaudrate    : E_MBUS_Baudrate := eMBUS_Baud2400;
  bStart       : BOOL;
  bSND_NKE     : BOOL := TRUE;
  bReadInit    : BOOL := TRUE;
  tMinSendTime : TIME := t#2s;
  usiUnit      : USINT;
  bDisabled    : BOOL := FALSE;
END_VAR

Name	Type	Description
usiAddress	USINT	Primary address of the meter to be read with this function block.
stSecAdr	ST_MBUS_SecAdr	Secondary address of the meter to be read with this function block.
eBaudrate	E_MBUS_Baudrate	300, 2400, 9600 baud
bStart	BOOL	All meters are read once on the positive edge of this input.
bSND_NKE	BOOL	TRUE initializes the meter for each read operation and sets the meter to the first telegram (SND_NKE).
bReadInit	BOOL	If the PLC is restarted, the meter is read once.
tMinSendTime	TIME	Default t#2s. The meter is read again, once the time set here has elapsed. If t#0s the meter is not read and can be read manually with bStart.
usiUnit	USINT	Unit of the energy values to be output by the function block. 0=W(h) / 1=KW(h) / 2 =MW(h) / 3=GW(h).
bDisabled	BOOL	TRUE = deselection of the function block

Inputs/outputs

VAR_IN_OUT
  stCom : ST_MBUS_Communication;
END_VAR

Name	Type	Description
stCom	ST_MBUS_Communication	This structure is used to link the function block FB_MBUSKL6781() with the meter blocks.

Outputs

VAR_OUTPUT
  bBusy                 : BOOL;
  bReady                : BOOL;
  bError                : BOOL;
  eError                : E_MBUS_ERROR;
  dwIdNumber            : DWORD;
  byStatus              : BYTE;
  byGEN                 : BYTE;
  byCounter             : BYTE;
  usiRecivedAdr         : USINT;
  eMedium               : E_MBUS_Medium;
  sMan                  : STRING(3);
  stEnergyHeating       : ST_MBus_Info;
  stVolume              : ST_MBus_Info;
  stOnTime              : ST_MBus_Info;
  stTempFlow            : ST_MBus_Info;
  stTempReturn          : ST_MBus_Info;
  stTempDiff            : ST_MBus_Info;
  stPowerActual         : ST_MBus_Info;
  stPowerMax            : ST_MBus_Info;
  stFlowActual          : ST_MBus_Info;
  stFlowMax             : ST_MBus_Info;
  stTariff2             : ST_MBus_Info;
  stTariff3             : ST_MBus_Info;
  stPulseInputA         : ST_MBus_Info;
  stPulseInputB         : ST_MBus_Info;
  stEnergyCooling       : ST_MBus_Info;
  stDateTime            : ST_MBus_Info;
  stEnergyHeatingTarget : ST_MBus_Info;
  stVolumeTarget        : ST_MBus_Info;
  stPowerMaxTarget      : ST_MBus_Info;
  stFlowMaxTarget       : ST_MBus_Info;
  stTariff2Target       : ST_MBus_Info;
  stTariff3Target       : ST_MBus_Info;
  stPulseInputATarget   : ST_MBus_Info;
  stPulseInputBTarget   : ST_MBus_Info;
  stEnergyCoolingTarget : ST_MBus_Info;
  stDateTarget          : ST_MBus_Info;
END_VAR

Name	Type	Description
bBusy	BOOL	The bBusy output is TRUE as long as the meter is being read.
bReady	BOOL	The bReady output is TRUE for one cycle, once meter reading is completed.
bError	BOOL	This output goes TRUE as soon as an error occurs. This error is described via the eError variable.
eError	E_MBUS_ERROR	This output outputs an error code in the event of an error. bError goes TRUE at the same time.
dwIdNumber	DWORD	Serial number of the meter (secondary address)
byStatus	BYTE	Device status
byGEN	BYTE	Software version of the device
byCounter	BYTE	Number of times the master has accessed data of the respective slave
usiRecivedAdr	USINT	Received primary address (0-250)
eMedium	E_MBUS_Medium	Medium
sMan	STRING	Manufacturer sign
stEnergyHeating	ST_MBus_Info	Heating energy
stVolume	ST_MBus_Info	Water consumption from district heating
stOnTime	ST_MBus_Info	Operating hours
stTempFlow	ST_MBus_Info	Current flow temperature
stTempReturn	ST_MBus_Info	Current return temperature
stTempDiff	ST_MBus_Info	Current temperature difference
stPowerActual	ST_MBus_Info	Active power (maximum)
stPowerMax	ST_MBus_Info	Current active power
stFlowActual	ST_MBus_Info	Current flow rate
stFlowMax	ST_MBus_Info	Active power (maximum)
stTariff2	ST_MBus_Info	Tariff 2
stTariff3	ST_MBus_Info	Tariff 3
stPulseInputA	ST_MBus_Info	Pulse input A
stPulseInputB	ST_MBus_Info	Pulse input B
stEnergyCooling	ST_MBus_Info	Cooling energy
stDateTime	ST_MBus_Info	Date and time
stEnergyHeatingTarget	ST_MBus_Info	See manufacturer's specifications
stVolumeTarget	ST_MBus_Info
stPowerMaxTarget	ST_MBus_Info
stFlowMaxTarget	ST_MBus_Info
stTariff2Target	ST_MBus_Info
stTariff3Target	ST_MBus_Info
stPulseInputATarget	ST_MBus_Info
stPulseInputBTarget	ST_MBus_Info
stEnergyCoolingTarget	ST_MBus_Info
stDateTarget	ST_MBus_Info

Requirements

Development Environment	PLC library to include
TwinCAT from v3.1.4020.14	Tc2_MBus from 3.3.5.0