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To convert the position value into microns or millimetres, multiply the received data value by the resolution
(see 4Dhex
Absolute resolution
register).
Example:
MXS2-BISS-50-...
absolute resolution
= 32 hex, 50 µm
detected pulses = 123
position value = 50 * 123 = 6150 µm = 6.15 mm
5.2.2 Error
(1 bit)
This is intended to communicate the normal or fault status of the Slave.
nE = “1”: correct status (no active error)
= ”0”: Error status: an error is active:
•
Reading error:
The sensor is not reading the magnetic tape correctly.
Among the possible causes are: the tape is not installed
properly, the magnetic surface of the tape is damaged, the
sensor is not working properly.
•
Frequency error:
The sensor is travelling too fast on the tape.
5.2.3 Warning
(1 bit)
This is used along with the
Position control
register to perform an automatic position control.
ATTENTION:
The use of both the
Position control
register and this
Warning
bit is strictly reserved to WayCon
technicians.
5.2.4 CRC
(6 bits)
CRC (Cyclic Redundancy Check) is the error checking field resulting from a “Redundancy Check” calculation
performed on the message contents. This is intended to check whether transmission has been performed
properly (inverted output).
Polynomial: X
6
+X
1
+1 (binary: 1000011)
Logic circuit:
1st
stage
X
0
2nd
stage
X
1
3rd
stage
X
2
4th
stage
X
3
5th
stage
X
4
6th
stage
X
5
Input Data (starts from MSB)
Summary of Contents for MXS2
Page 1: ...Magnetic Scale MXS2 Manual...
