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Summary of Contents for Ebyte Wireless Modem
- Page 1 E108-D01 Positioning Module User Manual...
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Page 2: Table Of Contents
5.3 Write Holding Register Instructions ......................14 5.3.1 Modify device address (broadcast) ..................... 14 5.3.2 Modify baud rate ..........................15 5.5.3 Modify the parity ..........................15 Revise history ................................15 About us ..................................16 Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 3: Overview
Take obtaining the REC positioning information output by the device as an example: Hard wares preparation: A computer; E108-D1 positioning module; Active GPS antenna (SMA, inner thread, inner needle); One USB to RS-485 serial cable; Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 4: Operation Demonstration
GPS active antenna USB to 485 converter cables Software preparation: Serial port debugging tool (User can download the "XCOM" serial port debugging tool from Ebyte's official website www.cdebyte.com); 2.2 Operation demonstration After preparing the above software and hardware, user can query the device positioning information and UTC time... - Page 5 32-bit floating point numbers, big 0x42 cf de 84 longitude 103.93460083007812 endian-big endian 0x00 4e Latitude direction Low level is valid, HEXASCII 32-bit floating point numbers, big 0x4e f6 2a a7 latitude 30.77082633972168 endian-big endian Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 6: Technical Indicators
Cold start -148 Hot start -162 Sensitivity Recapture -164 （Test Condition 2） Track -166 Horizontal positioning accuracy precision High positioning accuracy （Test Condition 3） Speed positioning accuracy Timing accuracy Power consumption Capture current Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 7: Mechanical Dimension Drawing
[Test Condition 3]：Open and unobstructed environment, 24 hours of continuous power-on test, 50% CEP. [Test Condition 4]： The number of receiving satellites is greater than 6, and the signal strength of all satellites is -130dBm. Mechanical dimension drawing Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 8: Pin And Indicator Light Definitions
3.81mm phoenix terminal power input positive (top), power input negative Power interface (bottom), 5~36V DC, cannot supply power with socket at the same time RS-485 interface RS485 bus B (top), RS485 bus A (bottom) Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 9: Modbus Register
40001, indicating address 1 of area 4 【Note】This device will only use the register address of zone 4 (that is, the holding register). Register table Register Address Data Register Function Data Range/Remarks Format （Decimal） （Hex） Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. - Page 10 0x4E(ASCII ： N) Represents North latitude, read Latitude direction 40210 00D2 Int16 only 0x53(ASCII：S) Represents South latitude Float The unit is degrees, 5 decimal places after the Latitude 40211 00D3 (4Byte) decimal point, read only Example: 30.77056°, word Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 11: Use Of Modbus Rtu
Command frame: 01 03 00 01 00 01 D5 CA Number of Address Function code Register start address CRC check registers 0x01 0x03 0x00 0x01 0x00 0x01 0xD5 0xCA Response frame: 01 03 02 00 10 B9 88 Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 12: Read Device Address (Broadcast)
Function code Data length data CRC check 0x01 0x03 0x02 0x00 0x00 0xB8 0x44 Note: The return check digit is 0x00, which means no parity check. See the description of "Modbus register table" Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 13: Read Positioning Data（Rmc
3640.46260 should be 36.67438 degree Latitude N-North latitude， direction S-South latitude Convert to degrees when calculating: 36 degrees + 40.46260 ddmm.mmmmm Longitude ddmm.mmmmm 3640.46260 minutes. 40.46260/60=0.67438 degree, so the value Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 14: Write Holding Register Instructions
0x01 0x06 0x00 0x02 0x00 0x01 0xE8 0x1B Note: This command is used to set the device address, use 0x00 as the broadcast address, and modify the device address to 0x01. Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 15: Modify Baud Rate
0x00 0x06 0x00 0x04 0x09 0xCB Note: This command is used to set the parity bit of the device to odd parity. The final interpretation right belongs to Chengdu Ebyte Electronic Technology Co., Ltd. Revise history Version Revise date Revise instruction... -
Page 16: About Us
About us Technical support: support@cdebyte.com Documents and RF Setting download link: www.cdebyte.com Thank you for using Ebyte products! Please contact us with any questions or suggestions: info@cdebyte.com ------------------------------------------------------------------------------------------------- Official hotline: 028-61399028 Web: www.ebyte.com Address: , Building B5, Mould Industrial Park, 199# Xiqu Ave, High-tech Zone, Chengdu, 611731, Sichuan, China...