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How are the process data of the OD2000 structured?
Article No: KA-02806
Version: 2.0
Subject to change without notice
Related Products
OD2000
Table of Contents
The IO-Link process data content of the OD2000 is selectable (Process data structure 1... Process data structure 6)
However, the general format of the process data is standardized according to the IO-Link "Smart Sensor Profile 2nd Edition" --> "Digital measuring sensor" type.
The Process data is structured as following (Process data size: 48 bit) depending on the selected structure
Process data structure 1 (default)
Bit 0 = Q1 Bit 1 = Q2 Bit 2..7 = empty Bit 8..15 = Scale Bit 16..47 = Distance
"Q1" and "Q2" describe the sensors switching status of Q1 and Q2
"Scale": The "Scale" byte of the process data is part of a IO-Link standardized process data format. This byte represents the scale of the distance value. In case of the OD2000 the distance value is provided in [nm] unit. Another expression is e.g. 10^-9 [m]. So the -9 describes the exponent compared to the SI- unit
"Distance": The four "Distance" bytes contain the sensors distance measurement value (relative distance). The distance is given as signed integer value in unit [nm]
Process data structure 2
Bit 0 = Q1 Bit 1 = Q2 Bit 2..15 = empty Bit 16..47 = Level
"Q1" and "Q2" describe the sensors switching status of Q1 and Q2
"Level" outputs the current "Signal level" value
Process data structure 3
Bit 0 = Q1 Bit 1 = Q2 Bit 2..15 = empty Bit 16..47 = Timer
"Q1" and "Q2" describe the sensors switching status of Q1 and Q2
"Timer": This value outputs the time since Q1 has switched to a high signal
Process data structure 4
Bit 0 = Q1 Bit 1 = Q2 Bit 2..15 = empty Bit 16..47 = Edge height
Process data structure 5
Bit 0 = Q1 Bit 1 = Q2 Bit 2..7 = Peak width Bit 8..15 = Scale Bit 16..47 = Distance
"Q1" and "Q2" describe the sensors switching status of Q1 and Q2
"Peak width": Contains the currently detected width of the receiver chips signal peak. This value can be used to monitor the signal quality. This value depends on the measured object. Typically this value should be below 10 [Pixel]
"Scale": The "Scale" byte of the process data is part of a IO-Link standardized process data format. This byte represents the scale of the distance value. In case of the OD2000 the distance value is provided in [nm] unit. Another expression is e.g. 10^-9 [m]. So the -9 describes the exponent compared to the SI- unit
"Distance": The four "Distance" bytes contain the sensors distance measurement value (relative distance). The distance is given as signed integer value in unit [nm]
Process data structure 6
Bit 0 = Q1 Bit 1 = Q2 Bit 2..7 = Peak width Bit 8..15 = Scale Bit 16..47 = Distance (absolute)
"Q1" and "Q2" describe the sensors switching status of Q1 and Q2
"Peak width": Contains the currently detected width of the receiver chips signal peak. This value can be used to monitor the signal quality. This value depends on the measured object. Typically this value should be below 10 [Pixel]
"Scale": The "Scale" byte of the process data is part of a IO-Link standardized process data format. This byte represents the scale of the distance value. In case of the OD2000 the distance value is provided in [nm] unit. Another expression is e.g. 10^-9 [m]. So the -9 describes the exponent compared to the SI- unit
"Distance": The four "Distance" bytes contain the sensors distance measurement value (absolute distance). The distance is given as signed integer value in unit [nm]. Zero point is on the front edge of the housing.
