LevelPro RS485 ProScan 2 80Ghz Radar Level Sensor Instruction Manual

LevelPro RS485 ProScan 2 80Ghz Radar Level Sensor

Specifications:

• Communication Protocol: RS485 (4-wire) or UART (2-wire)
• Serial Port Baud Rate: 9600 bps
• Parity Check: None
• Data Length: 8 bits
• Stop Bit: 1 bit

Product Usage Instructions

Communication Protocol Format:

• RS485 or UART serial port communication
• ModBus RTU communication protocol
• Default radar address: 1
• Request command format: Device Address (1 byte), Function code (1 byte)
• Setting command format: Device Address, Function code, Data length, Data, CRC

Communication Protocol Command Description:

• Data Query Command: Radar communication test command
• Function code: 0x66, Address: 0xAA 55 00 01, CRC: 0xF9 CA

Measurement Value (Damped) Query Command:

• Function code: 0x04, Address: 0x0A 0F 00 02, CRC: 0x12 10

Measurement Value (Undamped) Query Command:

• Function code: 0x04, Address: 0x0A 11 00 02, CRC: 0x22 16

Current Value Query Command:

• Function code: 0x04, Address: 0x0A 0A 00 01, CRC: 0x12 10

The Selected Echo Amplitude Query Command:

• Function code: 0x04, Address: 0x0A 0B 00 01, CRC: 0x43 D0

Application Type Query Command:

(Command description missing from manual)

Frequently Asked Questions (FAQ):

• Q: What is the default baud rate for RS485 communication?
  A: The default baud rate for RS485 communication is 9600 bps.

• Q: How can I change the radar address?
  A: The radar address can be changed using the display control module.

• Q: What is the data format for the measurement value query commands?
  A: The measurement value is in Float type data, represented in meters. The data format is lower 16 bits first and higher 16 bits after.

Read the user’s manual carefully before starting to use the unit.
Producer reserves the right to implement changes without prior notice.

Communication protocol hardware interface parameters

HCDAR-8X series radar level sensors adopts RS485(4-wire) or UART(2-wire) serial port to communicate external. Default parameters as follow :

Parameter| Serial port level| Baud rate/bps| Parity check| Data length/bit| Stop/bit
---|---|---|---|---|---
Serial port| RS485| 9600| none| 8| 1

Communication protocol format

External communication of radar level sensor adopts ModBus RTU communication protocol, and each complete data frame contains address code, function code, data and packet tail. The end of the packet is the CRC16 check data of the data frame. The low byte is first and the high byte is last. The default address of radar level sensor is 1. The radar address can be changed by display control module.
The format of the request command and the format of the radar reply data are described as below:

1. Request command format
   Device Address| Function code| Address| CRC
   ---|---|---|---
   1 byte| 1 byte| 4 byte| 2 byte
2. Request command reply data format
   Device Address| Function code| Data length| Data| CRC
   ---|---|---|---|---
   1 byte| 1 byte| 1 byte| X bytes| 2 byte
3. Setting command format
   Device Address| Function code| Address| Data length| Data| CRC
   ---|---|---|---|---|---
   1 byte| 1 byte| 4 byte| 1 byte| X bytes| 2 byte
4. Setting command reply data format
   Device Address| Function code| Address| CRC
   ---|---|---|---
   1 byte| 1 byte| 4 byte| 2 byte

Data query command

1. Radar communication test command
   •                    Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x66| 0xAA 55 00 01| 0xF9 CA
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x66| 0x02| 0x00 00| 0xA6 88

Remarks: receive reply means communication is normal

2. Measurement value (damped) query command
   •                    Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x04| 0x0A 0F 00 02| 0x12 10
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x04| 0x04| 0xXX XX XX XX| 0xXX XX

Remarks: The measurement value is Float type data, in meters, and the data length is 4.

1. The data format is lower 16 bits first and higher 16 bits after.
2. The measured value represents the basis of meaning determined by [Sensor mode]

3. Measurement value (undamped) query command
   •                    Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x04| 0x0A 11 00 02| 0x22 16
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x04| 0x04| 0xXX XX XX XX| 0xXX XX

Remarks: The measurement value is Float type data, in meters, and the data length is 4.

1. The data format is lower 16 bits first and higher 16 bits after.
2. The measured value represents the basis of meaning determined by [Sensor mode]

4. Current value query command
   •                    Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x04| 0x0A 0A 00 01| 0x12 10
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x04| 0x02| 0xXX XX| 0xXX XX

Remarks: Data type unsigned integer, unit is uA.

5. The selected echo amplitude query command
   •                    Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x04| 0x0A 0B 00 01| 0x43 D0
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x04| 0x02| 0xXX XX| 0xXX XX

Remarks: The value is an unsigned integer in the unit of dB.

6. Application type query command
   •                    Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x03| 0x20 69 00 01| 0x5F D6
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x03| 0x02| 0xXX XX| 0xXX XX

Remarks: Data definition of application type: 0-Solid; 1-Liquid.

7. Container Type Query Command
   •                    Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x03| 0x20 08 00 01| 0x0E 08
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x03| 0x02| 0xXX XX| 0xXX XX

Remarks: According to the application type, the data definition of the container type:

1. Solid : 0-Large volume container; 1-Mediul volume container; 2-Thin & high container; 3- Demonstation; 4-Fast feeding;
2. Liquid : 0-Large volume container; 1-Mediul volume container; 2-Thin & high container; 3- Demonstation; 4-stirrer;

8. Medium Type Query Command
   •                    Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x03| 0x20 30 00 01| 0x8F C5
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x03| 0x02| 0xXX XX| 0xXX XX

Remarks: According to the application type, the data definition of medium type

1. Solid : 0-Powder; 1-Small particle solid; 2-Bulk solid.
2. Liquid : 0-DK value>10; 1-DK value 3~10; 2-DK value<3.

9. High Level Adjustment Query Command
   •                    Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x03| 0x20 4A 00 02| 0xEE 1D
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x03| 0x04| 0xXX XX XX XX| 0xXX XX

Remarks : The data value is Float type data, the unit is meter, the data length value is 4.
The data format is the low 16-bit data first and the high 16-bit data after.

10. Low level adjustment query command
    •                    Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x03| 0x20 48 00 02| 0x4F DD
    •                    Reply data:

    Device Address| Function code| Data length| Data| CRC
    0x01| 0x03| 0x04| 0xXX XX XX XX| 0xXX XX

Remarks: The data value is Float type data, the unit is meter, the data length value is 4.
The data format is the low 16-bit data first and the high 16-bit data after.

11. Dead band query command
    •                    Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x03| 0x20 44 00 02| 0x8F DE
    •                    Reply data:

    Device Address| Function code| Data length| Data| CRC
    0x01| 0x03| 0x04| 0xXX XX XX XX| 0xXX XX

Remarks: The data value is Float type data, the unit is meter, the data length value is 4.
The data format is the low 16-bit data first and the high 16-bit data after.

12. Measuring Range Query Command
    •                    Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x03| 0x20 46 00 02| 0x2E 1E
    •                    Reply data:

    Device Address| Function code| Data length| Data| CRC
    0x01| 0x03| 0x04| 0xXX XX XX XX| 0xXX XX

Remarks: The data value is Float type data, the unit is meter, the data length value is 4.

The data format is the low 16-bit data first and the high 16-bit data after.

13. Sensor mode command
    •                    Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x03| 0x20 0A 00 01| 0xAF C8
    •                    Reply data:

    Device Address| Function code| Data length| Data| CRC
    0x01| 0x03| 0x02| 0xXX XX| 0xXX XX

Remarks: The data value represents the radar sensor model setting, the data definition: 0-Level mode; 1-Empty height model; 2-Distance mode.

14. Current output function query command
    •                    Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x03| 0x20 15 00 01| 0x9E 0E
    •                    Reply data:

    Device Address| Function code| Data length| Data| CRC
    0x01| 0x03| 0x02| 0xXX XX| 0xXX XX

Remarks: The data value represents the current output value model setting, data definition:
0-Level; 1-Empty height; 2-Distance

15. Waveform query start/stop command
    •                    Request command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 34 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 34 00 01| 0xXX XX

Remarks: the reply data address is the same as the setting command, then setting is successful.
The setting command data is defined as follows:

1. 0x0000-End reading;
2. 0x0001-Star reading. The echo and threshold curve length are both 64 registers.  

Before reading the waveform data, you need to send “Start Reading”, and after reading the waveform data, you need to send “End Reading”;

3. 0x0004-Star reading. The echo and threshold curve length are both 60 registers.  

Before reading the waveform data, you need to send “Start Reading”, and after reading the waveform data, you need to send “End Reading”;

16. Curve Wave Query Command
    •                    Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x04| 0x80 00 00 40| 0xD8 3A
    •                    Reply data:

    Device Address| Function code| Data length| Data| CRC
    0x01| 0x04| 0x80| 0xXX XX XX……| 0xXX XX

When the waveform query starts, the register is 0x0001

•                    Request command:

Device Address| Function code| Address| CRC
0x01(default)| 0x04| 0x80 00 00 3C| 0xD9 DB
•                    Reply data:

Device Address| Function code| Data length| Data| CRC
0x01| 0x04| 0x78| 0xXX XX XX……| 0xXX XX

1. Remarks:

2. There are 128 points of curve data, and the value of each point is 1 byte (0-255).
   Read 128 bytes of data in turn to obtain the complete curve data.

3. Before reading the curve data, you must send the [Start reading curve] setting command (the setting value is 0x0001), otherwise the real-time waveform data cannot be obtained. After reading, send [End reading].
   When the waveform query starts, the register is 0x0004• Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x04| 0x80 40 00 40| 0xD8 3A
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x04| 0x80| 0xXX XX XX……| 0xXX XX

4. Remarks:

5. There are 120 points of curve data, and the value of each point is 1 byte (0-255).
   Read 120 bytes of data in turn to obtain the complete curve data.

6. Before reading the curve data, you must send the [Start reading curve] setting command (the setting value is 0x0004), otherwise the real-time waveform data cannot be obtained. After reading, send [End reading].

7. Threshold Curve Query Command
   When the waveform query starts, the register is 0x0001• Request command:

   Device Address| Function code| Address| CRC
   0x01(default)| 0x04| 0x80 3C 00 3C| 0x19 D7
   •                    Reply data:

   Device Address| Function code| Data length| Data| CRC
   0x01| 0x04| 0x78| 0xXX XX XX……| 0xXX XX

8.  Remarks:

9. There are 128 points in the threshold curve data, and the value of each point is 1byte (0-255). Read 128 bytes of data in turn to obtain the complete curve data.

10. Before reading the threshold curve data, you must send the [Start reading curve] setting command (setting value is 0x0001), otherwise the real-time waveform data cannot be obtained. After reading, send [End reading].
    When the waveform query starts, the register is 0x0004

11. Remarks:

12. There are totally 120 points in the threshold curve data, the value of each point is 1 byte(0-255), read 120 bytes of data in sequence to obtain complete curve data .

13. Before reading threshold curve data, the [start reading curve] setting command must be sent (the setting value is 0x0004), otherwise, real-time waveform data cannot be obtained.
    Send [end reading] after reading,

14. Query of measured distance value (with damping) under waveform interface
    •                    Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x04| 0x80 78 00 02| 0xFB 84
    •                    Reply data:

    Device Address| Function code| Data length| Address| CRC
    0x01| 0x04| 0x04| 0xXX XX XX XX| 0xXX XX

Remarks:

1. The measured value is float type data in meters, the data length value is 4, and the data format is low 16 bit data in front and high 16 bit data in back. The measured value represents the distance.
2. Before reading data, the [start reading curve] setting command must be sent (the setting value is 0x0004), otherwise the real-time distance data cannot be obtained.

19. Query of measured distance value (without damping) under waveform Interface
    •                    Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x04| 0x80 7A 00 02| 0x79 D2
    •                    Reply data:

    Device Address| Function code| Data length| Address| CRC
    0x01| 0x04| 0x04| 0xXX XX XX XX| 0xXX XX

Remarks:

1. The measured value is float type data in meters, the data length value is 4, and the data format is low 16 bit data in front and high 16 bit data in back. The measured value represents the distance.
2. Before reading data, the [start reading curve] setting command must be sent (the setting value is 0x0004), otherwise the real-time distance data cannot be obtained.

20. Echo curve, threshold curve, distance measurement results together query
    In the waveform interface, when the [Start reading curve] setting command (set value is 0x0004), the register addresses of the curve waveform, threshold curve, damping distance value and undamped distance value are continuous, and the total register length is 124. The following request commands can be sent, and one message completes the reading of these four data.• Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x04| 0x80 00 00 7C| 0xD8 2B
    •                    Reply data:

    Device Address| Function code| Data length| Address| CRC
    0x01| 0x04| 0xF8| 0xXX XX XX XX| 0xXX XX

Remarks: Before reading data, the [start reading curve] setting command must be sent (the setting value is 0x0004), otherwise real-time data cannot be obtained.

21. Alarm information query
    •                    Request command:

    Device Address| Function code| Address| CRC
    0x01(default)| 0x04| 0x0A 08 00| 0xB3 D0
    •                    Reply data:

    Device Address| Function code| Data length| Address| CRC
    0x01| 0x04| 0x02| 0xXX XX| 0xXX XX

Remarks:The meaning of alarm data fault is defined as follows:

1. 0x0001 – No valid echo was found in the range ;
2. 0x0002 – No TR Data
3. 0x0004 – No factory threshold learning
4. 0x0008 – 4-20mA Chip error
5. 0x0010 – 4-20mA The current output is in manual mode
6. 0x0020 – LCD Communication error
7. 0x0040 – Abnormal external high-speed crystal oscillator
8. 0x0080 – Low speed clock abnormality
9. 0x0100 – Configure MSI clock error
10. 0x0200 – Configure MSI clock error
11. 0x0400 – AD Acquisition error

Data set command

1. Application type setting
   •                    Set command:

   Device Address| Function code| Address| Length| Data| CRC
   0x01(default)| 0x10| 0x20 69 00 01| 0x02| 0xXX XX| 0xXX XX
   •                    Reply data:

   Device Address| Function code| Address| CRC
   0x01| 0x10| 0x20 69 00 01| 0xXX XX

Remarks: Data definition of application type : 0-solid ; 1-liquid .

2. Container type setting
   •                    Set command:

   Device Address| Function code| Address| Length| Data| CRC
   0x01(default)| 0x10| 0x20 08 00 01| 0x02| 0xXX XX| 0xXX XX
   •                    Reply data:

   Device Address| Function code| Address| CRC
   0x01| 0x10| 0x20 08 00 01| 0xXX XX

3. Remarks:
   According to different application types, the meaning of container type data is defined as follows :

4. solid : 0-Large volume container ; 1-Medium volume container ; 2-Thin high container ; 3- Demonstration ; 4-Rapid feeding ;

5. liquid: 0-Large volume container : 1-Medium volume container ; 2-Thin high container ; 3- Demonstration : 4-Agitator ;

6. Medium type setting
   •                    Set command:

   Device Address| Function code| Address| Length| Data| CRC
   0x01(default)| 0x10| 0x20 30 00 01| 0x02| 0xXX XX| 0xXX XX
   •                    Reply data:

   Device Address| Function code| Address| CRC
   0x01| 0x10| 0x20 30 00 01| 0xXX XX

7. Remarks: Data definition of media type :

8. For solid : 0-Powder ; 1-Small particle solid ; 2-Bulk solid .

9. For liquid : 0-Dielectric constant >10; 1-Dielectric constant 3~10; 2-Dielectric constant <3 .

10. High level adjustment setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 4A 00 02| 0x04| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 4A 00 02| 0xXX XX

Remarks: The measured value is float type data in meters, the data length value is 4 bytes, and the data format is low 16 bit data in front and high 16 bit data in back.

5. Low level adjustment setting
   •                    Set command:

   Device Address| Function code| Address| Length| Data| CRC
   0x01(default)| 0x10| 0x20 48 00 02| 0x04| 0xXX XX| 0xXX XX
   •                    Reply data:

   Device Address| Function code| Address| CRC
   0x01| 0x10| 0x20 48 00 02| 0xXX XX

Remarks: The measured value is float type data in meters, the data length value is 4, and the data format is low 16 bit data in front and high 16 bit data in back.

6. Dead band setting
   •                    Set command:

   Device Address| Function code| Address| Length| Data| CRC
   0x01(default)| 0x10| 0x20 44 00 02| 0x04| 0xXX XX| 0xXX XX
   •                    Reply data:

   Device Address| Function code| Address| CRC
   0x01| 0x10| 0x20 44 00 02| 0xXX XX

Remarks: The measured value is float type data in meters, the data length value is 4, and the data format is low 16 bit data in front and high 16 bit data in back..

7. Range setting
   •                    Set command:

   Device Address| Function code| Address| Length| Data| CRC
   0x01(default)| 0x10| 0x20 46 00 02| 0x04| 0xXX XX| 0xXX XX
   •                    Reply data:

   Device Address| Function code| Address| CRC
   0x01| 0x10| 0x20 46 00 02| 0xXX XX

Remarks: The measured value is float type data in meters, the data length value is 4, and the data format is low 16 bit data in front and high 16 bit data in back.

8. Damping filter time setting
   •                    Set command:

   Device Address| Function code| Address| Length| Data| CRC
   0x01(default)| 0x10| 0x20 0B 00 01| 0x02| 0xXX XX| 0xXX XX
   •                    Reply data:

   Device Address| Function code| Address| CRC
   0x01| 0x10| 0x20 0B 00 01| 0xXX XX

Remarks: The data type is unsigned integer. The data is 2 bytes in seconds .

9. Sensor mode setting
   •                    Set command:

   Device Address| Function code| Address| Length| Data| CRC
   0x01(default)| 0x10| 0x20 0A 00 01| 0x02| 0xXX XX| 0xXX XX
   •                    Reply data:

   Device Address| Function code| Address| CRC
   0x01| 0x10| 0x20 0A 00 01| 0xXX XX

Remarks: Data length is 2 bytes, Data definition: 0-Level mode; 1-Free height mode; 2-Distance mode.

10. Distance unit setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 09 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 09 00 01| 0xXX XX

Remarks: data length 2 bytes, data definition : 0-m; 1-cm ; 2-mm; 3-foot; 4-inch.

11. Temperature unit setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 16 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 16 00 01| 0xXX XX

Remarks: Data length 2 byte , Data definition : 0-ºC ; 1-K.

12. False echo area mode setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 3E 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 3E 00 01| 0xXX XX

Remarks : Data length 2 byte , Data definition : 0-Whole process learning ; 1-Regional Learning ; 2-Learning remaining areas .

13. False echo initial position setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 3F 00 02| 0x04| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 3F 00 02| 0xXX XX

Remarks : (1) The measured value is float type data in meters, the data length value is 4, and the data format is low 16 bit data in front and high 16 bit data in back.

14. False echo end position setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 41 00 02| 0x04| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 41 00 02| 0xXX XX

Remarks : (1) The measured value is float type data in meters, the data length value is 4, and the data format is low 16 bit data in front and high 16 bit data in back.
Remarks : Data length 2 byte, Data definition : 1-false echo learning ; 2-false echo clear

15. False echo learning mode setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 43 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 43 00 01| 0xXX XX

Remarks : Data length 2 byte, Data definition : 1-false echo learning ; 2-false echo clear

16. Current output mode setting.
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 1A 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 1A 00 01| 0xXX XX

Remarks : Data length 2 byte , Data definition : 0-Manual ; 1-automatic ; 2-Disable

17. Current manual output value setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 1B 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 1B 00 01| 0xXX XX

Remarks : The data type is unsigned integer, and the data length is 2 bytes, in mA.

18. Feeding speed setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 56 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 56 00 01| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 57 00 01| 0xXX XX

Remarks : The value type is unsigned integer, the data length is 2 bytes, unit is cm/min.

19. Discharge speed setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 57 00 01| 0x02| 0xXX XX| 0xXX XX

Remarks : The value type is unsigned integer, the data length is 2 bytes, and the unit is cm/min.

20. Factory restore command
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x10 00 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x10 00 00 01| 0xXX XX

Remarks : Data length 2 byte , Data definition : 0-Restore factory ; 1-Device restart.

21. Distance offset setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 4E 00 02| 0x04| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 4E 00 02| 0xXX XX

Remarks : (1) The measured value is float type data in meters, the data length value is 4, and the data format is low 16 bit data in front and high 16 bit data in back. The measured value represents the distance.

22. Current output function setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 15 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 15 00 01| 0xXX XX

Remarks : Data length 2 byte, Data definition: 0-Level mode; 1-Free height mode; 2-Distance mode.

23. Echo loss fault output current setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 14 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 11 00 01| 0xXX XX

Remarks : Data length 2byte , Data definition : 0-3.8mA; 1-4mA; 2-20mA; 3-21mA; 4-fixed.

24. Fault timer setting
    •                    Set command:

    Device Address| Function code| Address| Length| Data| CRC
    0x01(default)| 0x10| 0x20 14 00 01| 0x02| 0xXX XX| 0xXX XX
    •                    Reply data:

    Device Address| Function code| Address| CRC
    0x01| 0x10| 0x20 11 00 01| 0xXX XX

Remarks : The data type is unsigned integer. The length of the value is 2 bytes, in seconds.

24-0173 © Icon Process Controls Ltd.

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