Lenze 3241C - Manual (Page 3)

Contents
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Contents
1 Introduction ........................................................................................... 3
2 Architecture............................................................................................ 4
3 API functions .......................................................................................... 5
3.1 Functions of the interface DLL.................................................................................. 5
3.2 Basic functions........................................................................................................... 6
3.2.1
Function: BpbOpen ...............................................................................................6
3.2.2 Function: BpbClose ...............................................................................................6
3.3 Diagnostics, service functions and network management.................................... 7
3.3.1
Diagnostics functions...........................................................................................7
3.3.2 Service functions ...................................................................................................9
3.3.3 Network management...................................................................................... 10
3.4 Communication....................................................................................................... 11
3.4.1
SDO communication.......................................................................................... 11
3.4.2 SDO functions...................................................................................................... 12
3.4.3 SDO indexes......................................................................................................... 13
3.4.4 SDO block structure ........................................................................................... 15
3.4.5 Memory requirements for SDO....................................................................... 17
3.4.6 PDO communication.......................................................................................... 18
3.4.7 PDO functions...................................................................................................... 19
3.4.8 Memory requirements for process data....................................................... 20
3.4.9 Example constellation....................................................................................... 20
3.5 Status description of the backplane bus (state machine) .................................... 23
3.6 Error codes ............................................................................................................... 23
3.7 I/O module types and their data width................................................................. 26
4 Software ...............................................................................................28
4.1 Driver........................................................................................................................ 28
4.2 Programming interface........................................................................................... 28
4.3 Include and library files........................................................................................... 28
5 Definitions, acronyms, and abbreviations .........................................29