Lenze DDS Function library IOSystem Manuel d'utilisateur télécharger pdf (Page 17)

Function library LenzeIOSystem.lib

Application examples

3.2 Compact decentralised I/O system

3−7

LenzeIOSystem.lib EN 1.7

At input DataFrom_IOParPDO15, CAN communication relationships between PLC and I/O system

are transmitted from parameterisation block L_IOParCompactModule to process data block

L_IOCompactModule.

Process data transmission is started after parameterisation via a High signal at input

bEnablePDOTransfer.

Data conversion for evaluating individual channels

The program Process can be extended as follows:

· Use the menu command ExtrasÞOrder to indicate the sequence.

· Drag the individual function blocks to their positions in order to make the program sequence

comprehensible.

Function block L_IOCompactModule supplies the transmit and receive data as 8*8 byte information

via the CAN telegram.

The two converters convert the information into individual bits.

A digital input and output module maps the individual bits.

If the example for eight inputs / outputs is to be extended to 24 inputs, two further function blocks

L_IODInModule must be generated and linked via converter L_IOConvByteArrayToByte.

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Lenze DDS Function library IOSystem Manuel d'utilisateur Page 17