AMM80 • SSI, BiSS, & RS-485
2. The battery is spent. The encoder cannot operate. You are required to
replace the battery. See the “4.5.2 Replacement of the battery – ERROR
active” section on page 26.
nE = “1”: no active error
= “0”: error status: an error is active in the system.
Warning
(1 bit)
It is intended to communicate the normal or fault status of the Slave.
When nW = “0” (low active), a warning is active in the system.
1. It indicates that an error has occurred in the magnetic multiturn system.
The level is high “1” when the multiturn system is operating properly.
2. The battery charge level is low. You are required to replace the battery
as soon as possible. See the “4.5.1 Replacement of the battery – No
ERROR active” section on page 25.
nW = “1”: no active warning
= “0”: warning status: a warning is active in the system.
CRC
(6 bits)
Correct transmission control (inverted output). Cyclic Redundancy Check is an
error checking which is the result of a “Redundancy Check” calculation
performed on the message contents. This is intended to check whether
transmission has been performed properly. It is 6-bit long.
Polynomial: X
6
+X
1
+1 (binary: 1000011)
Logic circuit
MAN AMM80 SSI_BiSS_RS485 E 1.5.odt
6 - BiSS C-mode interface
36 of 60
1st
stage
X
1
X
2
X
3
X
5
Input Data (starts from MSB)
X
0
2nd
stage
3rd
stage
4th
stage
5th
stage
6th
stage
X
4
