TR-Electronic 65 Serie Montageanleitung Seite 164

Parameterization and configuration

Example of the protocol structure for the selection Check sum 28 after 28 data bits:
MSB
Number of revolutions
The transmission format with check sum works with a "Hamming Distance" of 6 and
recognizes up to 5 errors per code word. Moreover, interrupted clock- or data-lines in
the receiver device can be recognized.
As receive devices (SSI master) serve TR application modules, e.g. the "AK-41" axis
cassette.
Because of high immunity to disturbance with this transmission format, this technology
is used e.g. in areas with strong electro smog and long connection lines.
 TR-Electronic GmbH 2007, All Rights Reserved
Page 120 of 131
Check sum 28 after 24 data bits:
-
Number of revolutions = 12 bits, Number of steps per revolutions = 12 bits,
this corresponds to a max. total measuring length of
4096 steps/revolution x 4096 revolutions. After output of the position 4
zero bits are attached, in order to keep the data frame of 28 bits.
Check sum 28 after 25 data bits:
-
Number of revolutions = 12 bits, Number of steps per revolutions = 13 bits,
this corresponds to a max. total measuring length of
8192 steps/revolution x 4096 revolutions. After output of the position 3
zero bits are attached, in order to keep the data frame of 28 bits.
Check sum 28 after 26 data bits:
-
Number of revolutions = 12 bits, Number of steps per revolutions = 14 bits,
this corresponds to a max. total measuring length of
16384 steps/revolution x 4096 revolutions. After output of the position 2
zero bits are attached, in order to keep the data frame of 28 bits.
Check sum 28 after 27 data bits:
-
Number of revolutions = 12 bits, Number of steps per revolutions = 15 bits,
this corresponds to a max. total measuring length of
32768 steps/revolution x 4096 revolutions. After output of the position 1
zero bit is attached, in order to keep the data frame of 28 bits.
Check sum 28 after 28 data bits:
-
Number of revolutions = 12 bits, Number of steps per revolutions = 16 bits,
this corresponds to a max. total measuring length of
65536 steps/revolution x 4096 revolutions.
15 check sum bits (MSB bit first)
1 – 12
27 16
– P 2
P 2
12 bit
TR-ECE-BA-DGB-0063 v15
13 – 28
15 0
– P 2
P 2
16 bit
Number of steps per revolution
LSB
29 – 43
14 0
– CRC 2
CRC 2
15 bit
TR Check sum
Printed in the Federal Republic of Germany
04/25/2022