Lenze PLC Designer R3-x Manual de usuario Pagina 106

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The L_DCO_DriveCommunication library
Function blocks
106
Lenze · Commissioning of Lenze drives · 1.3 EN - 06/2014
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12.3.3 L_DCO_ReadDriveParameterString
This FB reads a parameter of "String" data type of a Lenze inverter ("logic" axis") which is connected
to the Controller via a bus system and provides this to the application.
Inputs
xError
BOOL
Error status output
TRUE During the processing an error has occurred
FALSE No error
eError
L_DCO_Error
Error number
dwData
DWORD
Read parameter value
byNrOfByte
BYTE
Length of the read value
Identifier/data type Information/possible settings
Function library: L_DCO_DriveCommunication
Runtime software licence: LPC 1x00 MPC 1x00 MPC 2xx0 MPC 3x00
L_DCO_ReadDriveParameterString
L_DCO_AXIS_REF_BASE Axis xDone BOOL
BOOL xExecute xBusy BOOL
WORD wIndex xError BOOL
BYTE bySubIndex eError L_DCO_Error
BOOL xUseIndexAsParam sValue STRING
byNrOfByte BYTE
Identifier/data type Information/possible settings
Axis
L_DCO_AXIS_REF_BASE
Connection of the axis data of the controller (Logic nodes)
xExecute
BOOL
Activation of the "Read parameters" function
FALSETRUE Transmitting a parameter read request
FALSE Outputs are reset
If the execution of the FB has not been completed yet:
• Outputs are reset after request has been completed
• Status signals are at least set for one cycle.
wIndex
WORD
Index of the parameter to be read
•If xUseIndexAsParam = TRUE: Indication of the parameter/code number
bySubIndex
BYTE
Subindex of the parameter to be read
xUseIndexAsParam
BOOL
FALSE Selection indices according to CANopen
TRUE Selection indices according to Lenze parameters.
The value given at wIndex is interpreted as parameter/code
number.
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