Ssi; Format; Tree Format No (Standard) - TR-Electronic C 58 Serie Benutzerhandbuch

TRWinProg Parameterization: C_58, CE_58 – 13 bit resolution

5.2 SSI

5.2.1 Format

5.2.1.1 Tree format no (standard)

Tree format no = default setting
A synchronous-serial data transmission without tree format is min. 8 bits, or max. 32
bits long. The data transmission begins with the most significant bit (MSB) and
contains the position bits (P) and max. 8 freely programmable SSI special bits (S). The
SSI special bits are added after the LSB position bit. In the default setting the SSI
special bits are programmed to "Logical 0V" and produce, if they can be output,
added "zeros".
Related to the example of 32 clocks, the data can be shifted arbitrarily by the
parameter Number of data bits. The data can be transmitted right-justified or
left-justified, with leading "zeros" and without leading "zeros". Leading "zeros" are
produced if the parameter Number of data bits is programmed larger, as it would
be necessary from the total measuring length.
The parameter Number of data bits under the section SSI represents the
number of output position bits without the SSI special bits!
Example
Measuring system:
-
-
-
-
Output right-justified
Programmed number of data bits = 24
MSB
1 2
0 0
Output left-justified
Programmed number of data bits = 22
MSB
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Page 76 of 107
1024 steps/revolution (10 bits)
4096 revolutions (12 bits)
--> Total measuring length = 22 bits
Code: Binary or Gray
3 – 24
21 0
P 2 – P 2
1 – 22
21 0
P 2 – P 2
TR - ECE - BA - DGB - 0039 - 14
25 26 27
S1 S2 S3
23 24 25 26 27
S1 S2 S3 S4 S5
28 29 30 31 32
S4 S5 S6 S7 S8
28 29 30 31
S6 S7 S8 0
Printed in the Federal Republic of Germany
07/30/2020
LSB
LSB
32
0