Chengdu Ebyte Electronic Technology Co.,Ltd.
E831-RTU(8080T-485) User
Manual
12
Copyright ©2012–2022
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
Notice: Grounding: It is recommended to connect the case to the ground
2.3 Instruction reset description
Within 3 seconds of power-on, send the command to the 485 serial port: AT+RESTORE\r\n to reset the MODBUS address of
the machine, the serial port baud rate, and the parity parameters are the default parameters (1, 9600, no parity).
3 Modbus
3.1 Modbus address table
Register address table (function code: 0x01H, 0x05H, 0x0FH, 0x03H, 0x06H, 0x10H)
registe
r address
N
umber
of
registe
rs
register properties
re
gister
type
register
value range
Supp
ort
function
code
00017
(0x0010)
1
DO1 digital output
re
ad/writ
e
0x0000 or
0xFF00
(0x05
function code ) 0-
1 (0x01, 0x0F
function code)
0x01
0x05
0x0F
00018
(0x0011)
1
DO2 digital output
re
ad/writ
e
00019
(0x0012)
1
DO3 digital output
re
ad/writ
e
00020
(0x0013)
1
DO4 digital output
re
ad/writ
e
00021
(0x0014)
1
DO5 digital output
re
ad/writ
e
00022
(0x0015)
1
DO6 digital output
re
ad/writ
e
00023
（
0x0016
）
1
DO7 digital output
re
ad/writ
e
00024
（
0x0017
）
1
DO8 digital output
re
ad/writ
e
reserve
10017
(0x0010)
1
DI1 digital input
re
ad only
0-1
0x02
10018
(0x0011)
1
DI2 digital input
re
ad only
10019
(0x0012)
1
DI3 digital input
re
ad only
10020
(0x0013)
1
DI4 digital input
re
ad only
10021
(0x0014)
1
DI5 digital input
re
ad only
