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The L_DCO_DriveCommunication library

Unions

112

Lenze · Commissioning of Lenze drives · 1.3 EN - 06/2014

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12.4.2 L_DCO_TransferData

The L_DCO_TransferData structure describes a request for reading/writing a parameter.

• An array [1..x] OF L_DCO_TransferData can be used to read or write several parameters of a

drive by means of the L_DCO_TransferDriveParameter function block .

12.5 Unions

12.5.1 L_DCO_ConvertData

Union for different access possibilities to a 32-bit memory area.

Component Data type Initialisation Description

wIndex WORD 0 Index number of the parameter to be processed

bySubIndex BYTE 0 Subindex of the parameter to be processed

xWriteAccess BOOL FALSE Write/or read access

FALSE Read access

TRUE Write access

xEnable BOOL 0 Activation of the parameter request

FALSE Parameter request is processed

TRUE Parameter request is ignored

byNrOfByte BYTE 0 Number of the transmitted/read bytes

dwData DWORD 0 Transmitted/read data

Component Data type Initialisation Description

abData ARRAY OF BYTE Transmitted/read data

awData ARRAY OF WORD Transmitted/read data

dwData DWORD Transmitted/read data

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