Efficient Networks S120 Cyclic communication, Telegrams and process data General information

Communication PROFIBUS DP/PROFINET IO 10.1 Communications according to PROFIdrive

Table 10-2 Selection of telegrams as a function of the application class

Telegram	Description	Class 1	Class 2	Class 3	Class 4
(p0922 = x)
1	Speed control, 2 words	x	x
2	Speed control, 4 words	x	x
3	Speed control, 1 position encoder		x		x
4	Speed control, 2 position encoder				x
5	DSC, 1 position encoders				x
6	DSC, 2 position encoders				x
7	Basic positioner			x
9	Basic positioner with MDI			x
20	Speed control, VIK-NAMUR	x	x
102	Speed control with torque reduction,				x
	1 position controller
103	Speed control with torque reduction,				x
	2 position controllers
105	DSC with torque reduction, 1 position encoder				x
106	DSC with torque reduction, 2 position encoder				x
110	Basic positioners with MDI, override and XistP			x
116	DSC with torque reduction, 2 position encoder				x
352	Speed control, PCS7	x	x
370	Telegram for infeed	x	x	x	x
390	Telegram for Control Unit (drive object 1, DO1),	x	x	x	x
	digital inputs/outputs
391	Telegram for Control Unit (drive object 1, DO1),	x	x	x	x
	digital inputs/outputs and 2 measuring probes
392	Telegram for Control Unit (drive object 1, DO1),	x	x	x	x
	digital inputs/outputs and 6 measuring probes
999	Free telegrams	x	x	x	x

10.1.3Cyclic communication

Cyclic communication is used to exchange time-critical process data.

10.1.3.1Telegrams and process data

General information

The selection of a telegram via p0922 determines, on the drive unit side (Control Unit) which process data is transferred.

Drive Functions	347
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4