Lenze DDS Function library IOSystem - Manual (Page 17)

Function library LenzeIOSystem.lib
Application examples
3.2 Compact decentralised I/O system
3−7
L
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 Extras
ÞOrder 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.