Function description
In the CANopen mode the modular I/O system has a dynamic structure of indices.
In the modular system of the CANopen mode indices are generated dependent on the type and quantity of the modules used (channels) – non-required indices do not exist.
The following example describes the advantage:
In CANopen project planning tools the station structure with the used input and output channels is defined. Each input / output point is presented in an index. If channels are not used, indices are not generated either. If only one analog output channel is used on a module, only the index I6411h subindex 1 is generated.
In the Lenze mode, however, all indices are available at any time – in this case index I6411 subindex 1…36 (maximal 9 modules with 4 channels each).
If you write on an unused index in the CANopen mode an error message would be displayed indicating that the index is not used. This avoids writing data that will not be evaluated.
As in the Lenze mode, however, all indices I6411 subindex 1…36 are available, it is possible to write on these indices, although they are not used in the application.
The following indices are generated dynamically:
--> 1027h
--> 3001h…3010h
--> 4000h, 4001h, 4100h…4104h
--> 6000h, 6002h, 6200h, 6202h, 6206h, 6207h, 6401h, 6411h, 6421h, 6424h…6426h, 6443h, 6444h
Applications
The dynamic generation is used in conjunction with CANopen project planning tools of other manufacturers.
