[etherlab-users] Can we access the slave by physical addressing from the master?

[Dr.-Ing. Wilhelm Hagemeister]

Hi Paul,

The "Secondary slave address" is used for this purpose. The slaves 
address is programmed with "ethercat alias".
For usage in your application code see ecrt.h.

Regards Wilhelm.

Am 15.04.2016 um 15:38 schrieb Paul Mulligan:
> Hi,
>
> If I want to access a slave on the Ethercat bus, we use the position of
> the slave on the bus to access it with ecrt_master_slave_config(). If we
> then put a new slave on the bus before this slave for example, this
> means that the position number of the first slave will change and we
> need to reconfigure our code.? This presents problems.
>
> My question is, can we not access the slave via their physical addresses
> instead of this incremental position addressing, therefore not needing
> to update the position address every time there is a change?
>
> Thanks
>
>
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