26-Bit + Repeat - TR-Electronic C 58 Serie Benutzerhandbuch

Programmings < 12 bits for the Number of revolutions produce leading "zeros",
Programmings < 16 bits for the Number of steps per revolution produce
added "zeros".
The Number of data bits required for the programmed Total number of steps
must be typed in exactly.
As transmission code Binary must be selected.
Example
Measuring system:
-
-
-
-
MSB
1 2
0 0

5.2.1.4 26-bit + repeat

With the programming "26-bit + repeat" with the second clock sequence clock
27 to clock 52 the stored position value is transferred again and serves for recognition
of transmission errors.
A further clock sequence of 26 clocks transfers a new updated data word. So a data
word is always repeated only once.
If the clock 27 follows after a time larger than the standard mono time of 20 µs, also a
new updated data word is sent.
The total number of the Number of data bits and SSI special bits must be
≤ 26 bits.
A synchronous-serial data transmission with 26-bit + repeat is always 26 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" up to the 26. clock.
Printed in the Federal Republic of Germany
07/30/2020
4096 steps/revolution (12 bits)
1024 revolutions (10 bits)
--> Total number of steps = 22 bits, this corresponds to 22 data bits
Code: Binary
3 – 12
21 12
P 2 – P 2
12 bit
Number of revolutions
TR - ECE - BA - DGB - 0039 - 14
13 – 24 25 26 27 28
11 0
P 2 – P 2 0 0 0 0
16 bit
Number of steps per revolution
LSB
29 – 43
14
CRC 2 – CRC 2
15 bit
TR Check sum
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