FB_MBUS_SEC_iEM3135

FB_MBUS_SEC_iEM3135 1:

This module is used to readout electricity meters of the manufacturer Schneider Electric.

It can only be used together with the module FB_MBUSKL6781().

Functionality of the module

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..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);
stCurrentPhase1     : ST_MBus_Info;
stCurrentPhase2     : ST_MBus_Info;
stCurrentPhase3     : ST_MBus_Info;
stCurrentAverage    : ST_MBus_Info;
stVoltageL1N        : ST_MBus_Info;
stVoltageL2N        : ST_MBus_Info;
stVoltageL3N        : ST_MBus_Info;
stVoltageAverageLN  : ST_MBus_Info;
stVoltageL1L2       : ST_MBus_Info;
stVoltageL2L3       : ST_MBus_Info;
stVoltageL3L1       : ST_MBus_Info;
stVoltageAverageLL  : ST_MBus_Info;
stPowerActivePhase1 : ST_MBus_Info;
stPowerActivePhase2 : ST_MBus_Info;
stPowerActivePhase3 : ST_MBus_Info;
stPowerActiveTotal  : ST_MBus_Info;
stPowerReactiveTotal: ST_MBus_Info;
stPowerApparentTotal: ST_MBus_Info;
stPowerFactorTotal  : ST_MBus_Info;
stFrequency         : 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 counter (secondary address).

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

byGEN: Counter 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.

stCurrentPhase1: Phase 1 current (see ST_MBus_Info).

stCurrentPhase2: Phase 2 current (see ST_MBus_Info).

stCurrentPhase3: Phase 3 current (see ST_MBus_Info).

stCurrentAverage: Average current (see ST_MBus_Info).

stVoltageL1N: Voltage L1-N (see ST_MBus_Info).

stVoltageL2N: Voltage L2-N (see ST_MBus_Info).

stVoltageL3N: Voltage L3-N (see ST_MBus_Info).

stVoltageAverageLN: Average voltage line-to-neutral (see ST_MBus_Info).

stVoltageL1L2: Voltage L1-L2 (see ST_MBus_Info).

stVoltageL2L3: Voltage L2-L3 (see ST_MBus_Info).

stVoltageL3L1: Voltage L3-L1 (see ST_MBus_Info).

stVoltageAverageLL: Average voltage line-to-line (see ST_MBus_Info).

stPowerActivePhase1: Active power phase 1 (see ST_MBus_Info).

stPowerActivePhase2: Active power phase 2 (see ST_MBus_Info).

stPowerActivePhase3: Active power phase 3 (see ST_MBus_Info).

stPowerActiveTotal: Total active power (see ST_MBus_Info).

stPowerReactiveTotal: Total reactive power (see ST_MBus_Info).

stPowerApparentTotal: Total apparent power (see ST_MBus_Info).

stPowerFactorTotal: Total power factor (see ST_MBus_Info).

stFrequency: Frequency (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).

Requirements

Development environment

Target system

Required libraries

TwinCAT 2.11 R3/x64 from build 2254

PC/CX, BX or BC

TcMBus library from V2.6.0