Data Formats - Balluff BTL5-S1 Série Notice D'utilisation

BTL5-S1 _ _ (B)-M _ _ _ _ -H/W(8)-S32/KA_ _/K_ _/FA_ _/F_ _
Magnetostrictive Linear Position Sensor – Rod Style
6
SSI interface (continued)
Sampling frequency for synchronous
(BTL5-S1_ _B-...)
The maximum sampling frequency f
actual value is available for every sample is shown in Tab.
6-1 and Fig. 6-1.
Nominal length [mm]
≤ 100
≤ 1000
≤ 1400
≤ 2600
≤ 4000
Tab. 6-1: Maximum sampling frequency for various nominal lengths
3600
1200
900
500
333
100 1000 1400
Fig. 6-1: Maximum sampling frequency for various nominal lengths
14 english
at which a new
A, max
f [Hz]
A, max
3600
1200
900
500
333
2600 4000
Nominal length [mm]
6.2

Data formats

The BTL5 has the following factory settings for position
output, which can no longer be changed retroactively:
– SSI24 or SSI25
– Binary or Gray coded
– Rising or falling
The MSB is always transmitted first.
23 Position
M
Output of a position via SSI24
M = MSB (Most Significant Bit)
L = LSB (Least Significant Bit)
24 23 22 21 20 Error value or position value
0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Example of a SSI25 with error bit at bit position 21 and
error value 0. The data length here is 21 bits, the total bit
number is 25. Three zeros are sent before the error bit.
Behavior of the error value over the entire range:
SSI
out
21
2
Magnet missing
≈ 5 mm
0
Null point
Fig. 6-2: Error value BTL5 ≥ 5 µm
For resolutions ≥ 5 µm, in the case of an error, bit 2
set. For resolutions < 5 µm, there is no error bit and the
value 0 is output.
0
L
0
End point Pos
is
21