Efficient Networks S120 manual XistP, Control and status words for encoder Description, 0DVWHU

Communication PROFIBUS DP/PROFINET IO 10.1 Communications according to PROFIdrive

XistP

Actual position value is displayed

Normalization: 1 corresponds to 1 LU

10.1.3.5Control and status words for encoder

Description

The process data for the encoders is available in various telegrams. For example, telegram 3 is provided for speed control with 1 position encoder and transmits the process data of encoder 1.

The following process data is available for the encoders:

●Gn_CTW encoder n control (n = 1, 2, 3)

●Gn_ZSW encoder n status word

●Gn_XIST1 encoder n act. pos. value 1

●Gn_XIST2 encoder n act. pos. value 2

Note

Encoder 1: Motor encoder

Encoder 2: Direct measuring system

Encoder 3: Additional measuring system

Encoder 3 can be connected via p2079 and extension of the standard telegrams.

Example of encoder interface

352),%86		*B67:
		*B67:
0DVWHU		6ODYH
*B=6:	*B;,67	*B;,67
*B=6:	*B;,67

Figure 10-11 Example of encoder interface (encoder-1: two actual values, encoder -2: an actual value)

Encoder n control word (Gn_CTW, n = 1, 2, 3)

The encoder control word controls the encoder functions.

Drive Functions	375
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4