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PMI15V-F166-...-IO-... Series
Process Data Structure
6
Process Data Structure
The process data of the position measurement system consists of 32 bits (4 bytes). The follow-
ing table provides an overview of the order and structure of the process data.
Name
MDC—Measurement Value
MDC—Scale
DSC—Signal Quality Indicator
SSC.2—Switching Signal 2
SSC.1—Switching Signal 1
Table 6.1
6.1
MDC—Measurement Value
Measurement Data Channel—Measurement Value
The "MDC—Measurement Value" process data content returns the current position of the
recorded damping element (center of the damping element) in the measuring range of the
position measurement system.
6.2
MDC—Scale
Measurement Data Channel—Scale
The position value contained in the process data can be converted to the base unit specified in
the "MDC Descriptor—Unit Code" parameter. The exponent defined by "Scale" to base 10 is
used for this purpose.
For example, a scale value of -5 together with the base unit of "m" specifies a resolution of 10^-
5 m = 10 µm.
6.3
DSC—Signal Quality Indicator
Diagnosis Signal Channel—Signal Quality Indicator
The process data content "DSC—Signal Quality Indicator" indicates the quality of the sensor
signal. This allows optimal adjustment of the distance between the sensor and the damping
element. Misalignment is detected prematurely.
18
Data Type
Length
Integer
16 bits
Integer
8 bits
Integer
2 bits
Boolean
1 bit
Boolean
1 bit
Bit Offset
Value
16
<MV1_min> ... <MV1_max)
-32760: Out of range (-)
32760: Out of range (+)
32764: No measurement data
8
-5: resolution 10 µm
2
0: Insufficient
1: Acceptable
2: Good
3: Excellent
1
0 = Low
1 = High
0
0 = Low
1 = High
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