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Preset
The Preset function is meant to assign a value to a desired physical position of the sensor. The chosen physical
position will get the value set next to this item and all the previous ad following positions will get a value
according to it. This function is useful, for example, when the zero position of the sensor and the zero position
of the axis need to match. The preset value will be set for the position of the sensor in the moment when the
preset value is activated. To activate the preset, stop the sensor in the desired position, enter the desired value
next to this Preset / Offset register and then send the
Save and activate Preset / Offset
command in the
Command register (set “02” in the register 48).
Offset
The offset function is meant to assign a value to a desired physical position of the sensor so that the output
position information is shifted according to the value next to this Preset / Offset register. The number of
transmitted values will match the max number of position information as per the set resolution, but the output
information will range between the Preset / Offset value (minimum value) and the sum of the max. position
information as per the set resolution (see the Absolute resolution register) + the Preset / Offset value
(maximum value). The offset value will be set for the position of the sensor in the moment when the offset
value is activated. To activate the offset, stop the sensor to the desired position, enter the desired value next
to this Preset / Offset register and then send the
Save and activate Preset / Offset
command in the Command
register (set “02” in the register 48).
Preset / Offset structure:
Register
51
52
53
MSB
...
LSB
2
23
...2
16
2
15
...2
8
2
7
...2
0
Use the
Save and activate Preset / Offset
function (set “02” in the register 48) to store and activate the new
value.
The max. allowed Preset value depends on the set resolution:
resolution = 50 μm
max preset = 03 FF FFh (18 bits)
resolution = 10 μm
max preset = 0F FF FFh (20 bits)
resolution = 5 μm
max preset = 1F FF FFh (21 bits)
resolution = 2 μm
max preset = 3F FF FFh (22 bits)
resolution = 1 μm
max preset = 7F FF FFh (23 bits)
The Offset value must be less than or equal to the difference between the overall position information (24 bits,
see
Position
) and the max. position information allowed by the set resolution (see the
Absolute resolution
register).
Default =
00h
5.4.7 Device type
[55, ro]
This register describes the type of device.
Default =
07h
: BiSS linear e AB incremental signal
5.4.8 SINE / COSINE resolution
[58, ro]
This register describes the period of the sine/cosine signal.
Default =
00h
: the register is not used
Summary of Contents for MXS2
Page 1: ...Magnetic Scale MXS2 Manual...
