
Chengdu Ebyte Electronic Technology Co.,Ltd
E851-RTU(4440-ETH) User Manual
Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd
11
DO 4
Relay 4 output indication
Green LED,lights up when NO 4, COM 4 closed
NET
Network indication
Yellow LED, long bright after entering the network
DATA
Serial data indication
Yellow LED, lights up when there’s data transmitted in RS485
interface (expressively flashes)
WORK
Work/reset indication
Yellow LED, flashing regularly / flashing after successful reset
PWR
Power indicator
Red LED, long bright
Note:
Grounding: It is recommended to connect the housing to the ground.
2.3. Reload touch button description
Long press 5S is valid, after the reset is successful, the WORK lamp flashes quickly, and the Modbus device address,
RS485 serial port baud rate and check digit are restored to the factory settings.
3. Modbus
3.1. Modbus address table
Register address table
(
function code
:
0x01H
、
0x05H
、
0x0FH
、
0x03H
、
0x06H
、
0x10H
)
Register address
Register
quantity
Register attribute
Register type Register value range
Support
function code
00017 (0x0010)
1
DO1 Switch Output
Read / write
0x0000 or 0xFF00
(
0x05function code
)
0-1
(
0x01
、
0x0Ffunction
code
)
0x01
0x05
0x0F
00018 (0x0011)
1
DO2 Switch Output
Read / write
00019 (0x0012)
1
DO3 Switch Output
Read / write
00020 (0x0013)
1
DO4 Switch Output
Read / write
Reserve
10017 (0x0010)
1
DI1 Switch input
Read only
0-1
0x02
10018 (0x0011)
1
DI2 Switch input
Read only
10019 (0x0012)
1
DI3 Switch input
Read only
10020 (0x0013)
1
DI4 Switch input
Read only
Reserve
30017 (0x0010)
1
AI1 input value
,
Unit(uA)
Read only
0-20000
0x03
0x04
30018 (0x0011)
1
AI2 input value
,
Unit(uA)
Read only
30019 (0x0012)
1
AI3 input value
,
Unit(uA)
Read only
30020 (0x0013)
1
AI4 input value
,
Unit(uA)
Read only
Reserve
40049 (0x0030)
1
DI1 pulse counting value
Read only
0-65535
0x03
40050 (0x0031)
1
DI2 pulse counting value
Read only
0-65535
40051 (0x0032)
1
DI3 pulse counting value
Read only
0-65535
40052 (0x0033)
1
DI4 pulse counting value
Read only
0-65535
Reserve
Содержание E851-RTU
Страница 1: ...E851 RTU 4440 ETH User Manual...