Flow-tronic Raven-Eye, Руководство по установке и эксплуатации

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4.3.2 Parameters
The RAVEN-EYE
®
acts as MODBUS ASCII slave serial device. The PLC is the master device.
The serial communication has the following characteristics:

Communication (COM PORT): RS485

Protocol: MODBUS ASCII

Baud rate: 19200 bauds

Number of bits: 8

Parity: None

Number of stop bits: 2
The RAVEN-EYE
®
uses the following MODBUS functions:

03 “Read holding registers”

16 “Preset multiple registers”
Used data types:

Signed16 16 Bit signed integer

Unsigned16 16 Bit unsigned integer

Float32 32 Bit Floating Point
Word Order HI-LO = Hi Byte on lower register address
4.3.3 Measurement data „read only“
Table 2: Registers to be read
Adresse Modus Länge Typ Einheit Bezeichnung Kommentar
Address Mode Length Type Unit Description Comment
1000
R 2 float32 m/s Velocity vQP Velocity considering the quality parameters
1002
R 2 float32 m/s Velocity vQPF
Velocity considering the quality parameters and
the median filter
1004 R 2 float32 m/s Velocity vAVG Average velocity
1006
R 2 float32 m/s Velocity vRAW Raw surface velocity
1008 R 1 unsigned16
Sensor
identification
=0x0001
1009 R 1 signed16 VSN Quality parameter (Velocity Spectrum Number)
1010
R 2 float32 SNR Quality parameter (Signal to Noise Ratio)
1012 R 1 signed16 AGC Quality parameter (Automatic Gain Control)
1013 R 1 signed16 NOT Quality parameter (Number Of Trials)
1014 R 2 float32 °C Temperature Internal temperature of the sensor
1016 R 2 float32 % Humidity Internal humidity of the sensor
1018 R 2 float32 Bar Pressure Internal pressure of the sensor
1020
R 2 float32
Standard deviation
(σ)
Quality parameter
1022 R 2 float32 Amplitude (A) Quality parameter
1024
R 2 float32 m Level (h)
1026 R 2 float32 l/s Flow rate (Q)
1028
R 1 unsigned16 Status
4.3.4 Level input „read & write“
Table 3: Registers to be read and written
Address Mode Length Type Unit Description Comment
4000 RW 1 Unsigned16 mm Level Used for flow calculation