FB_MBUS_SVM_F22_Ext
This block is used to read heat meters from Metrima:
-F22 (as FB_MBUS_SVM_F22(), but with the extended output values arrAcountAccums and arrMonthlyAccums.)
 | This block is not suitable for BC/BX. |
The block can only be executed together with the block FB_MBUSKL6781().
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;
bMonthstorages : BOOL;
byMonthstorages : BYTE;
usiAddress: Primary address of the meter to be read with this block.
stSecAdr: Secondary address of the meter to be read with this block (see ST_MBUS_SecAdr).
eBaudrate: 300, 2400, 9600 baud (see E_MBUS_Baudrate).
bStart: A positive edge of this input triggers one reading of the meter.
bSND_NKE: TRUE initializes the meter for each read operation and sets the meter to the first telegram (SND_NKE).
bReadInit: If the PLC is restarted, the meter is read once.
tMinSendTime: Standard 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: Unit of the energy values to be output by the block. 0=W(h) / 1=KW(h) / 2 =MW(h) / 3=GW(h).
bDisabled: TRUE = deselection of the block.
bMonthstorages: =False, cutoff dates and monthly values are not read (arrAccountAccums and arrMonthlyAccums) / =TRUE, cutoff dates and monthly values are read (arrAccountAccums and arrMonthlyAccums). The number of monthly values (arrMonthlyAccums) can be changed and depends on the variable byMonthstorages.
byMonthstorages: Number of monthly values (arrMonthlyAccums), maximum 37 values. Only applies if byMonthstorages =TRUE.
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);
stEnergy : ST_MBus_Info;
stVolume : ST_MBus_Info;
stVolume2 : ST_MBus_Info;
stForwardTemp : ST_MBus_Info;
stReturnTemp : ST_MBus_Info;
stDiffTemp : ST_MBus_Info;
stFlow : ST_MBus_Info;
stPower : ST_MBus_Info;
stPulsecounter1 : ST_MBus_Info;
stPulsecounter2 : ST_MBus_Info;
arrAccountAccums : ARRAY [1..2] OF ST_MBus_F22;
arrMonthlyAccums : ARRAY [1..37] OF ST_MBus_F22;
bBusy: The bBusy output is TRUE while the meter is being read.
bReady: The bReady output is TRUE for one cycle, once meter reading is completed.
bError: this output goes TRUE as soon as an error occurs. This error is described via the variable eError.
eError: In the event of an error the output issues an error code (see E_MBUS_ERROR). bError goes TRUE at the same time.
dwIdNumber: Serial number of the meter (secondary address).
byStatus: Device status.
byGEN: Software version of the device.
byCounter: Number of times the master has accessed data of the respective slave.
usiRecivedAdr: Received primary address (0-250).
eMedium: Medium (see E_MBUS_Medium).
sMan: Manufacturer code.
stEnergy: Meter reading, energy consumption (see ST_MBus_Info).
stVolume: Meter reading, water consumption (see ST_MBus_Info).
stVolume2: Accumulated volume. Energy calculation (see ST_MBus_Info).
stForwardTemp: Flow temperature (see ST_MBus_Info).
stReturnTemp: Return temperature (see ST_MBus_Info).
stDiffTemp: Temperature difference (see ST_MBus_Info).
stFlow: Current water consumption (see ST_MBus_Info).
stPower: Current energy consumption, power (see ST_MBus_Info).
stPulsecounter1: Pulse counter 1 (see ST_MBus_Info).
stPulsecounter2: Pulse counter 2 (see ST_MBus_Info).
arrAccountAccums: 2 cutoff date values (energy, volume 1, volume 2, pulse counter 1, pulse counter 2, date). Values are only read if bMonthstorages =TRUE (see ST_MBus_F22).
arrMonthlyAccums: Maximum 37 monthly values (energy, volume 1, volume 2, pulse counter 1, pulse counter 2, date). Values are only read if bMonthstorages =TRUE. The number of values depends on the variable byMonthstorages (see ST_MBus_F22).
VAR_IN_OUT
stCom : ST_MBUS_Communication;
stCom: This structure is used to link the block FB_MBUSKL6781() with the meter blocks (see ST_MBUS_Communication).
Requirements
Development environment | required TC3 PLC library |
|---|---|
TwinCAT from v3.1.4020.14 | Tc2_MBus from 3.3.4.0 |