Lenze DDS v1.1 Uživatelský manuál stáhnout pdf (Strana 11)

Function library Lenze32BitTransferDrv.lib

Functions

2.3 L_32BitTransferDWORD

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Lenze32BitTransferDrv.lib EN 1.1

2.3 L_32BitTransferDWORD

Function

This function is used to copy the value of variables of type double word" (32 bits) data−consistently

to other variables of type double word".

· The function can be called in the main program PLC_PRG or in a user task.

· When the function is started, the tasks are inhibited to ensure a data−consistent copying

process.

· After copying has been completed, the blocked tasks will be automatically released.

· Task events coming in during copying will be processed as soon as the function has been

executed. This ensures that no start signals are lost.

Declaration

BOOL L_32BitTransferDWORD (pdwSource, pdwDestination);

Transfer parameters Data type Info/possible settings

pdwSource Pointer to

double word

Address of the variable of type "double word" to be copied

pdwDestination Pointer to

double word

Address of the destination variable of type "double word"

Return value Data type Value/meaning

Bool Status

TRUE Data transfer has been completed.

Examples

In the following examples, tasks are blocked during copying and the value of the variable dwSource

is copied to the variable dwDestination.

· Calling the function in FBD:

L_32BitTransferDWORD

pdwSource

pdwDestination

ADR

dwSource

dwDestination

· Calling the function in ST:

pdwSource := ADR(dwSource);

pdwDestination := ADR(dwDestination);

bTransfer := L_32BitTransferDWORD(pdwSource,

pdwDestination);

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Lenze DDS v1.1 Uživatelský manuál Strana 11