MICRO-EPSILON IF2030/ENETIP, Руководство по эксплуатации

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Annex | Sensor Values, Data Format, Conversion
IF2030/ENETIP
A 3.4 DT6120
Baud rate 230400 b/s RS485 half duplex Measurements ex factory scaled to sensor measuring range, Little Endian
Bus address 126
Measuring data consist of a counter, the packet length m and the measurements. The packet length m determines how many mea-
surements are transmitted. The packet length m is the number of measurements that have been queried by the electronic system
since the last time measuring data were queried, but is limited to the most recent 20 measurements. The first measurement in the
data [] package is the oldest value queried, the last one is the most recently queried value.
Byte Data Meaning Data format
Data[0] Counter [7:0]
unsigned short
Data[1] Counter [15:8]
Data[2] Packet length m [7:0] unsigned char
Data[3] Filler byte [7:0] unsigned char
Data[4] Measuring value 1 [7:0]
signed integer
Scaling of measurements
BY default, 24-bit measurements are transmitted.
The following equivalences therfore apply:
0x0
= 0 % of the sensor measuring range
0xF00000 = 100 % of the sensor measuring range
If the sensor is outside the measuring range, accordingly larger
measurements are output.
Data[5] Measuring value 1 [15:8]
Data[6] Measuring value 1 [23:16]
Data[7] Measuring value 1 [31:24]
. . .
Data[..] Measuring value m [7:0]
signed integer
Data[..] Measuring value m [15:8]
Data[..] Measuring value m [23:16]
Data[..] Measuring value m [31:24]
Fig. 15 Encoding of Measured Data in the Transmission Protocol, DT6120
Please refer to the operating instructions for the capacitive displacement measuring system for more information. The current version
is available at:
https://www.micro-epsilon.de/download/manuals/man--capaNCDT-6110-6120IP--en.pdf