Lenze DDS Function library 8200 Drive Manual do Utilizador descarregar pdf (Página 25)

Function library Lenze8200Drive.lib

Functions/function blocks

3.3 L_8200DataControl − Send/receive process data

3−13

Lenze8200Drive.lib EN 1.0

Process data exchange

If the input bEnable is set to TRUE, the FB L_8200DataControl starts to exchange process data

· The data are exchanged via the identifiers of the process data object CAN2_IO which consist

of the basic identifier and the node address of the frequency inverter selected at the input

byNodeAdr:

Identifier + Basis Identifier ) node address of frequency invertor

Basic identifier

dec hex

CAN2_IO (event or time−controlled process data)

CAN2_IN 640 280

CAN2_OUT 641 281

· If a FALSE−TRUE transition occurs at the input bResetNode, the frequency inverter with the

node address byNodeAdr accepts the data which are relevant for communication and

changes to "Operational".

· The cycle time tCycleTime is used to send the data to the frequency inverter.

Tip!

Process data transfer is only possible if the node address is correct and the frequency inverter is in

the state "Operational".

· Therefore, the input bResetNode should always be set to TRUE.

Assignment of send and receive bytes

Send byte Assignment Receive byte Assignment

1 + 2 Control word wControlData 1 + 2 Status word wStatusData

3 + 4 Setpoint nNSetN1_a 3 + 4 Actual value nMCtrl_Nout_Slip

5 + 6 a

min

boost wBoostVoltage 5 + 6 freely assignable via wOutputData3

7 + 8 freely assignable via wInputData 7 + 8 freely assignable via wOutputData4

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