Beckhoff TwinCAT 2 TX1200, Руководство пользователя

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Programming
TX1200 58 Version: 1.1
6.2.21 MP_VRU_Configuration
This function block is used to configure the VAV actuators VRU-D3-BAC, VRU-M1-BAC and VRU-M1R-BAC
(max. 8 slaves). Further information can be found at
www.belimo.ch .
MP_Address is used to specify the MP-Bus device with which the function block is to communicate. bStart
activates communication with the MP-Bus device. bBusy indicates that the block is active. bError is used to
indicate an error in communication with the drive. The type of the error can be read with iErrorId .
VAR_INPUT
MP_Address : USINT := 1;
bStart : BOOL;
bRead_Write : BOOL;
dwPassword : DWORD;
strDataKL6771 : DataKL6771;
rMax : LREAL := 100;
rMin : LREAL;
bSetpointSource : BOOL;
bOperationMode : BOOL := TRUE;
nSensor1Type : E_MP_VRU_Sensor1Type := MPBus_VRU_Sensor_Active;
MP_Address: MP-Bus address of the slave.
bStart: a positive edge starts the function block.
bRead_Write: FALSE = READ only. TRUE = READ and WRITE.
dwPassword: the password for the actuators. Usually 0x0000.
strDataKL6771: the data structure with which the KL6771 [ } 25] function block must be linked (see
DataKL6771 [ } 72] ).
rMax: max in % (20...100 %).
rMin: min in % (0... rMax ). rMin must be smaller than rMax .
bSetpointSource: TRUE = bus; FALSE = analog
bOperationMode: TRUE = overpressure; FALSE = negative pressure
nSensor1Type: sensor 1 type [
}
69] .
VAR_OUTPUT
bBusy : BOOL;
bError : BOOL;
iErrorId : MP_Error;
rNominalVolumeticFlow : LREAL;
rNominalDeltaPressure : LREAL;
rMinRead : LREAL;
rMaxRead : LREAL;