FB_MBUS_ZRM_zelsiusZR

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;
bDisabled       : BOOL := FALSE;

usiAddress: Primary address of the counter, that shall be readout with this module.

stSecAdr: Secondary address of the counter, that shall be readout with this module.

eBaudrate: 300, 2400, 9600 baud.

bStart: Positive edge on this input, the meter is read out once.

bSND_NKE: TRUE to initialize the meter at each reading, and sets the meter on the first telegram (SND_NKE).

bReadInit: After restarting the PLC, the meter is read out once.

tMinSendTime: Standard t#2s. When this time exceeds, the counter is rereadout. At t#0s the counter is not readout and can be readout with bStart manually.

bDisabled: TRUE = disable the function block.

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;
stVolumeInput1      : ST_MBus_Info;
stVolumeInput2      : ST_MBus_Info;
stDeviceError       : ST_MBus_Info;
stTimepoint         : ST_MBus_Info;
stEnergyTimepoint   : ST_MBus_Info;
stCounterInput1     : ST_MBus_Info;
stCounterInput2     : ST_MBus_Info;

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: The bError output becomes TRUE as soon as an error occurs. The error is described via the variable eError.

eError: The eError output issues an error code when an error occurs (see E_MBUS_ERROR).

dwIdNumber: Serial number of the meter (secondary address).

byStatus: Status of the meter. Please refer to device description for meanings.

byGEN: Meter software version.

byCounter: Transmission counter (number of transmitted RSP_UD).

usiRecivedAdr: Received primary address (0-250).

eMedium: Medium (see E_MBUS_Medium).

sMan: Manufacturer code.

stEnergy: Meter reading, energy consumption (see ST_MBus_Info).

stVolumeInput1: Volume Input 1 (see ST_MBus_Info).

stVolumeInput2: Volume Input 2 (see ST_MBus_Info).

stDeviceError: Error state M-Bus output (see ST_MBus_Info).

stTimepoint: Deadline (date and time of the next deadline) (see ST_MBus_Info).

stEnergyTimepoint: Heat energy at the deadline (see ST_MBus_Info).

stCounterInput1: Counter value input 1 at the deadline (see ST_MBus_Info).

stCounterInput2: Counter value input 2 at the deadline (see ST_MBus_Info).

VAR_IN_OUT

stCom           : ST_MBUS_Communication;

stCom: About this structure, the block FB_MBUSKL6781() is connected to the meter function blocks (see ST_MBUS_Communication).

Download sample program for PC/CX systems:

Download sample program for BX systems:

Controller configuration setting: "BCxx50 or BX serial"

Download sample program for BC systems:

BCxx00 must be set to "Large Model" in the PLC under "Project/Options/Controller Settings".

Controller configuration setting: "BC serial"

Requirements