Balluff BMP 01-ZLZPP1A-00-P-S75 Serie Notice D'utilisation page 52

BMP 01-ZLZPP _ 1A- _ _ _ _ -00 -P _ _ /P _ _ -S4/P _ _ -S75
Magnetic Field Positioning System
7
IO-Link interface (continued)
7.2 Process data (PD)
The BMP variants output a measurement value and
additional status and switch point information cyclically via
the IO-Link interface.
0 1 2
Measurement value
Tab. 7-2: Process data
Measurement value
The measurement value corresponds to the position of the
target in μm and consists of a signed 32-bit value.
Scaling factor
The scaling factor indicates the factor by which the
measurement value must be multiplied in order to obtain
the value in the SI unit.
The scaling factor is for BMP –6 (0xFA):
Measurement value × 10
−6
Status and SSC
Bit Name
7 System Error
6 Out of Range /
No Measurement
Data
5 Out of
Measurement
Range
4 Measurement
Value Unsafe
3 SSC 4
2 SSC 3
1 SSC 2
0 SSC 1
Tab. 7-3: Status and SSCs
18 english
Byte
3 4 5
Status
Scaling
and
factor
SSCs
= Position [m]
Function
The BMP no longer functions
(storage error, hardware
defective).
The BMP does not detect a
target in the detection range.
The target is located outside of
the configured measuring
range.
The target is located within the
set measuring range, however
the excess gain is low.
Switch information for the
fourth switch point
Switch information for the third
switch point
Switch information for the
second switch point
Switch information for the first
switch point. SSC 1 is placed
on output OUT 1 in SIO mode.
In the case of an error, the data is only marked as invalid
using the PD Invalid Bit if the device absolutely cannot
supply valid data.
The IO-Link functionality PD Invalid Bit is
handled differently by different IO-Link masters
(refer to the manual for the respective master).
Detection range
Measuring range
Status bits
1)
Bit 4 0 0 0
Bit 5 0 0 1
Bit 6 1 1 0
See Tab. 7-3
1)
2) If this bit is set, the excess gain is low. The target is magnetized too
weakly or it is too far away from the BMP.
Fig. 7-1: Ranges and output
If the target is located below or above the detection range
and is still detected by the BMP, the measured value is
replaced by the following values:
– Out of range positive: 2'147'483'640 (0x7FFFFFF8)
– Out of range negative: –2'147'483'640 (0x80000008)
In the event of an error (if no valid data can be output), the
measured value is replaced by error value 2'147'483'644
(0x7FFFFFFC).
Position
0/1 0 0 0
2)
0 1 0 0
0 0 1 1