FB_MBUS_ChangeAdr
This function block can be used to change the primary address.
The function block can only be executed together with the function block FB_MBUSKL6781().
VAR_INPUT
usiAdrOld : USINT;
usiAdrNew : USINT;
eBaudrate : E_MBUS_Baudrate := eMBUS_Baud2400;
bStart : BOOL;
bDisabled : BOOL := FALSE;
usiAdrOld: Old primary address of the counter.
usiAdrNew: New primary address of the counter.
eBaudrate: 300, 600, 1200, 2400, 4800, 9600 baud.
bStart: Positive edge of this input, the primary address of the meter is changed.
bDisabled: TRUE = disable the function block.
VAR_OUTPUT
bBusy : BOOL;
bReady : BOOL;
bError : BOOL;
eError : E_MBUS_ERROR;
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).
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"