Command Reset; Modbus; Modbus Address - Ebyte E831-RTU User Manual

16 NO2
17 COM2
18 NC2
19 NO3
20 COM3
21 NC3
22 NO4
23 COM4
24 NC4
DAT Serial port data indication
A
I/O I / O status indicator
PWR Power indication
Note：
Grounding: it is recommended to connect the housing to the earth

2.3. Command reset

Within 3 seconds after power on, send a command to 485 serial port: AT+RESTORE\r\n to reset the MODBU
address, serial port baud rate and parity parameters of the machine as default parameters (19600, no check).

Modbus

3.

3.1. Modbus address

Register address （function code：0x01H、0x05H、0x0FH、0x03H、
Register Register
address quantity
00017 1
(0x0010)
00018 1
(0x0011)
00019 1
(0x0012)
00020 1
(0x0013)
10017 1
(0x0010)
10018 1
(0x0011)
Relay 2 normally open pin
Relay 2 common terminal
Relay 2 normally closed pin
Relay 3 normally open pin
Relay 3 common terminal
Relay 3 normally closed pin
Relay 4 normally open pin
Relay 4 common end
Relay 4 normally closed pin
LED lamp
Dual color light, green indicates data reception, blue
indicates data transmission
Dual color light, the green indicator light of any input
signal is on, and the blue indicator light of any output
signal is on. When there are both outputs and inputs, it is
on at the same time, and the indicator light is cyan。
Red LED, long on
0x06H、0x10H）
Register attribute
DO1 Switching output
DO2 Switching output
DO3 Switching output
DO4 Switching output
Retain
DI1 Switching input
DI2Switching input
Used in conjunction with the common
end of relay 2
Used with relay 2 normally open pin /
normally closed pin
Used in conjunction with the common
end of relay 2
Used in conjunction with the common
end of relay 3
Used with relay 3 normally open pin /
normally closed pin
Used in conjunction with the common
end of relay 3
Used in conjunction with the common
end of relay 4
Used with relay 4 N.O. pin / N.C. pin
Used in conjunction with the common
end of relay 4
Register Register
type value range
Read / Write
0x0000 or
0xFF00
Read / Write
（0x05
function
Read / Write
code） 0-1
（0x01、
Read / Write
0x0F
function
code）
Read-only
0-1
Read-only
Support
function
code
0x01
0x05
0x0F
0x02