Efficient Networks S120 Subscriber, Links and taps, Prerequisites and limitations, Applications

Models: S120

1 560
Download 560 pages 21.93 Kb
Page 422
Image 422

Communication PROFIBUS DP/PROFINET IO 10.2 Communication via PROFIBUS DP

Subscriber

The subscribers evaluate the broadcast telegrams, sent from the publishers, and use the data which has been received as setpoints. The setpoints are used, in addition to the setpoints received from the master, corresponding to the configured telegram structure (p0922).

Links and taps

The links configured in the subscriber (connection to publisher) contain the following information:

From which publishers may input data be received?

Which input data is there?

A which location should the input data be used as setpoints?

Several taps are possible within a link. Several input data or input data areas, which are not associated with one another, can be used as setpoint via a tap.

Links are possible to the device itself. This means, e.g. for a Double Motor Module, data can be transferred from drive A to B. This internal link corresponds, as far as the timing is concerned, to a link via PROFIBUS.

Prerequisites and limitations

The following limitations should be observed for the "slave-to-slave" communications function:

Drive ES Basic V5.3 SP3

Firmware version ≥ 2.4

Number of process data, max. per drive

Number of links to Publishers

Number of taps per link

Applications

For example, the following applications can be implemented using the "slave-to-slave communications" function:

Axis couplings (this is practical for isochronous mode)

Angular-locked synchronism where the position reference value or position actual value is entered

Torque setpoint coupling (master/slave operation)

Master drive speed controlled <–> slave drive torque controlled

Specifying binector connections from another slave

422

Drive Functions

Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

Page 422
Image 422
Efficient Networks S120 manual Subscriber, Links and taps, Prerequisites and limitations, Applications