Measurement Data Channel - Balluff BML SL1-ALZ-ZZ Serie Manual De Instrucciones

BML SL1-ALZ _-_ _ ZZ- _ _ _ _ - _ _ _ _
Absolute Magnetically Coded Position Measuring System
7
IO-Link Smart Sensor profile Ed. 2 (BML SL1-ALZ1-UE/MZZ-_U1L-...) (continued)
7.5.1

Measurement Data Channel

The BML passes the measured position via the
measurement value to the IO-Link master. The
measurement value can be adjusted to the respective
application using the following parameters.
Parameters Subindex
Offset 0x00C1 (193)
Preset 0x00C2 (194)
Output Characteristics
0x00C3 (195)
Enable Detection Range
0x00C4 (196)
MDC Describer
0x4080 (16512)
Physical Measurement
Limits
0x0202 (514)
Minimum and maximum value for the configured measurement range.
1)
The measurement value may exceed these limits due to the detection
range.
Tab. 7-7: Parameter data MDC
The parameters can mutually influence each
other. Therefore it is recommended to make the
settings in the following sequence: Range
Teach, Output Characteristics, Offset/Preset
Teach.
Range Teach
The measuring range of the BML can be restricted using a
Range Teach. This function uses the system commands
Teach Range Minimum and Teach Range Maximum. In
the newly set measuring range the limits of the output
value can be found in the parameter MDC Describer.
Output Characteristics
Use the parameter Output Characteristics to change the
signal direction of the data value. The signal is reflected
within the set measuring range.
Setting the offset
The output value can be given an offset. The desired value
can be written to the Offset parameter. The BML adds this
value to the value of the measured position and outputs it.
www.balluff.com
Name Size
0 – 4 bytes
0 – 4 bytes
0 – 1 byte
0 – 1 byte
1 Lower Limit 4 bytes
2 Upper Limit 4 bytes
3 Unit Code 2 bytes
4 Scale 1 byte
1 Lower Limit 4 bytes
2 Upper Limit 4 bytes
Changing the measurement value configuration
affects the switching response. The switching
signal configuration (see Sec. 7.5.2) may need
to be repeated.
Access Values
Read/Write –8184000...+8184000 μm (default: 0 μm)
Read/Write –8184000...+8184000 μm (default: 0 μm)
Read/Write 0x00 (false) = falling (null point at end cap)
0xFF (true) = rising (null point on cable end)
1)
Read Only 0 = Detection area disabled
Read-only access: Used for information that
the detection range is not available.
(default: 0x00)
Read Only The minimum value of the measurement value
for the current configuration.
Read Only The maximum value of the measurement
value for the current configuration.
Read Only 0x1010 (4112) = Meter
Read Only 0xFA (–6) =
Measurement value × 10
Read/Write Limits of the raw measurement values
Read/Write
These values are required for the data storage functionality and should
2)
not be changed. The measurement area can be adjusted using the
Range-Teach commands.
Preset Teach
The Preset Teach function allows the offset value to be
automatically calculated.
1. Write the desired output value to the Preset parameter.
2. Move the head to the desired position.
3. Execute the Teach Preset system command.
4. The BML calculates the offset so that the preset value
is output at the arrived position.
1)
1)
= Position [m]
–6
2)
english 29