AMM36 • SSI, BiSS, & RS-485
If you want to activate the new Preset value, after saving use the
function (set “02” in the
register).
The Preset value must be less than the “Total Hardware resolution”.
NOTE
We suggest setting the preset when the encoder shaft is in stop.
NOTE
Please note that the bit structure of the
registers is as follows:
Byte 11
Byte 12
Byte 13
Byte 14
Byte 15
7 6 5 4 3 2 1 0
15 14 13 12 11 10 9 8
23 22 21 20 19 18 17 16
31 30 29 28 27 26 25 24
39 38 37 36 35 34 33 32
0 0 0 0 0 0 0 0
0 0 0
Always set to 0
lsbit with 22-bit encoder
lsbit with 21-bit encoder
lsbit with 17-bit encoder
Byte 16
Byte 17
47 46 45 44 43 42 41 40
55 54 53 52 51 50 49 48
0 0 0 0 0 0 0
Always set to 0
msbit with all encoders
NOTE
Please note that:
•
bit 48 of byte 17 is the msbit of the preset value and is kept fixed;
•
bit 11 of byte 12 is the lsbit of the preset value in the 22-bit encoder;
•
bit 12 of byte 12 is the lsbit of the preset value in the 21-bit encoder;
•
bit 16 of byte 13 is the lsbit of the preset value in the 17-bit encoder;
•
bits from 49 to 55 in byte 17 are always set to 0;
•
bits from 8 to 10 in byte 12 are always set to 0;
•
all bits in byte 11 are always set to 0.
value see the following example.
PRESET SETTING EXAMPLE
In the 21-bit singleturn resolution encoder (2
21
= 2,097,152 information), you
10
= 0F4243h = 1111 0100
0010 0100 0011
2
.
MAN AMM36 SSI_BiSS_RS485 E 1.0.odt
6 - BiSS C-mode interface
36 of 56
