BRITE-R RS485 User manual

Multi-turns Absolute Rotary Encoder
--User Manual
RS485
深圳布瑞特科技有限公司
BriterEncoder
1

Product Advantages
● RS485 digital communication signal output, the digital output signal
has multi-turn value and single-turn absolute value.
● Adopt standard ModBus-RTU communication protocol, support
Kingview, Intouch, FIX, synall and other popular software, and can
realize data communication with equipment and systems of
international famous brands such as AB, Siemens, Schneider, and GE.
● Full-scale true multi-turn encoder composed of precision reduction
gears, no battery needed, power-off memory; any position within the
range is unique, even if there is interference or power-off movement,
the number of turns will not be lost .
● A simple multi-turn encoder with a single code disc + precision
reduction gear, multi-turns are 0-99 turns, single-turns are 0-
32768P/R absolute values, and a resolution of 0.35 degrees can be
achieved within the range.
● All parameters can be set through the RS485 communication of the
computer, and the zero point can be set at any position. Therefore,
when the encoder is installed, the device can be left at any position,
and the connecting shaft can be fixed without considering the rotation
position of the encoder. After power-on, it can be automatically
corrected by performing a zero-setting operation at the external lead
or through RS485 communication.
● Especially suitable for reliable/accurate measurement of the height,
stroke, angle and speed of tower cranes, mine cranes and
construction hoists.
2

Electrical Parameters
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3

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Mechanical Size
4
The an gle relationship
between the wire exit
direction an d th e 3 M3
moun ting holes is ran dom
D shape shaft
size ratio 5:1
Threa d hole
depth 6mm

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深圳布瑞特科技有限公司
Address: Building A2, Anle Industrial Park, No.172 Hangcheng Street, Xixiang
Street, Banan, Shenzhen. 518101
地址: 深圳市宝安区西乡街道航城大道 172 号安乐工业区 A2 栋6层
邮编：518101
Website: www.briterencoder.com
Technology support: Tel: [phone] Email: [email protected]
Shop: https://www.aliexpress.com/store/900241184
Product warranty and disclaimer
Contact Us
5

Appendix 一
Encoder RS485 TCP（Standard MODBUS-RTU）
This encoder uses MODBUS-RTU (National Standard GB/T19582-2008) TCP for
communication, supports one master station to control multiple slave stations, and 127
slave station addresses can be configured through the built-in host computer. The
master station can be a single-chip computer, PLC or PC, etc.
1.1 Communication parameters
The default configuration of the serial port at the factory, the baud rate is 9600bps
by default, the data bit is 8, no parity, and the stop bit is 1. The baud rate can be
configured in the range of 9600~115200bps, and the encoder default communication
address (station number) is 1.
1.2 MODBUS-RTU Frame format
This encoder supports 0x03 (read holding register), 0x06 (write a single register)
function codes of MODBUS。
1.2.1 0x03 Read holding register
Host send：
Byte
1
2
3
4
5
6
7
8
Content
ADR
0x03
Start
register
high
byte
Start
register
low
byte
High
byte of
register
number
Low
byte of
register
number
CRC
High
byte
CRC
low
byte
The 1st byte ADR：
Slave address code（1～127）
The 2nd byte 0x03 ：
Read register value function code
The 3rd.、4th. byte：
Start address of the register to be read
The 5th.、6th. byte：
Number of registers to be read
The 7th.、8th. byte：
CRC16 checksum from byte 1 to 6
Return from station：
Byte
1
2
3
4、5
6、7
M-1、M
M+1
M+2
Content
ADR
0x03
Total
byte
Register
data 1
Register
data 2
…..
Register
data M
CRC
High
byte
CRC
Low
byte
The 1st byte ADR：
Slave address code（1～127）
The 2nd byte 0x03 ：
Return to read function code
The 3rd byte：
The total number of bytes from 4 to M
(including 4 and M)
The 4th. ~ M byte：
Register data

The M＋1、 M+2byte：
CRC16 checksum from byte 1 to M
1.2.2 0x06 Write a single register
Host send：
Byte
1
2
3
4
5
6
7
8
content
ADR
0x06
Start
register
high
byte
Start
register
low byte
High byte
of
register
number
Low byte
of
register
number
CRC
High
Byte
CRC
Low
byte
When the slave station receives correctly, the slave station sends back：
Byte
1
2
3
4
5
6
7
8
Conte
nt
ADR
0x06
Registe
r high
byte
Regist
er low
byte
High
byte of
register
number
Low byte
of register
number
CRC
high
byte
CRC
low
byte
1.3 Register definition
1.3.1 Encoder register
Register
address
description
Value ranges
Support
function
code
Remarks
0x0000~
0x0001
Encoder
value
0~0xFFFFFFFF
（0~4294967295）
0x03
0x0002
Encoder coil
value
0~0xFFFF
（0~65535）
0x03
0x0003
Encoder
singe turn
value
0~0xFFFF
（0~65535）
0x03
0x0004
Encoder
address
1~127
0x06
Communication
address
0x0005
Baud rate
0x0000~0x0004
0x06
0x00： 9600
0x01：19200
0x02：38400
0x03：57600
0x04：115200
0x0008
Encoder reset
zero mark
0x0001
0x06
Write 0x0001，the
encoder takes the
current position as
the zero point
0x0009
Encoder
value
increasing
direction
0x0000~0x0001
0x06
0x00：clockwise
0x01：
counterclockwise
7

1.4 Example of Encoder communication
1.4.1 Read encoder value
Tx:01 03 00 00 00 02 (C4 0B)
Rx:01 03 04 00 01 76 3B (CC 40)
Note: The CRC check digit is in the brackets, the return data of the encoder value is 00 01 76 3B
(decimal: 95803)
1.4.2 Read encoder circle value + single circle value
Tx:01 03 00 02 00 02 (65 CB)
Rx:01 03 04 00 08 02 7A (FB 72)
Note: The CRC check digit is in the brackets, the return data of the encoder circle value is 00 08
(decimal: 8 circle)
The return data of the encoder single-turn value is 02 7A (decimal: 634)
1.4.3 Read encoder coil value
Tx:01 03 00 02 00 01 (25 CA)
Rx:01 03 04 00 08 (59 83)
Note: The CRC check digit is in the brackets, the return data of the encoder circle value is 00 08
(decimal: 8 circle)
1.4.4 Read encoder single-turn value
Tx:01 03 00 03 00 01 (74 0A)
Rx:01 03 04 02 7A (D8 C6)
Note: The CRC check digit is in the brackets, the return data of the encoder single-turn value is
02 7A (decimal: 634)
1.4.5 Set the encoder address
Tx:01 06 00 04 00 02 (49 CA)
Rx:01 06 00 04 00 02 (49 CA)
Note: The CRC check digit is in the brackets, and the set address is 02 (HEX:0x0002)
1.4.6 Set the encoder baud rate
Tx:01 06 00 05 00 02 (18 0A)
Rx:01 06 00 05 00 02 (18 0A)
Note: The CRC check digit is in the brackets, and the set baud rate is 38400 (0x02)
1.4.7 Set encoder zero
Tx:01 06 00 08 00 01 (C9 C8)
Rx:01 06 00 08 00 01 (C9 C8)
Note: The CRC check digit in the brackets, set the current point of the current encoder as the
origin
1.4.8 Set the increment direction of the encoder value
Tx:01 06 00 09 00 01 (98 08)
Rx:01 06 00 09 00 01 (98 08)
Note: The CRC check digit in the brackets, set the current encoder to increase counterclockwise
(default clockwise)