Ebyte 66060-ETH Series, Руководство пользователя, Страница: 21 / 37

Chengdu Ebyte Electronic Technology Co., Ltd.
E831-RTU(6060-ETH)
User manual
Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 20
Device ModBus
address
function
code
Return bytes Number
Switch quantity
output value
CRC check code
Modbus TCP Protocol Reads Switch quantity Output
：
Send
00 01 00 00 00 06 01 01 00 10 00 06
Transmissio
n identifier
Protocol
identifier
length
Unit
identificati
on
Function
code
Switch quantity
start address
Read switch
quantity number
Receive
00 01 00 00 00 04 01 01 01 03
Transmission
identifier Protocol
identifier
length
Unit
identificatio
n
Function
code
Return bytes
Number
Switch quantity
output value
Control switch quantity DO output
Function code: 05, write a single coil state; 0F, write multiple coil states
Address range: 00017 (0x0010) ~ 00022 (0x0015)
Description: The passive relay of the equipment relay, the coil is not energized, the NC port of the relay is closed
with the COM port, the NO port is disconnected from the COM port; the coil is energized, the NC port of the relay is
disconnected from the COM port, and the NO port and the COM port are closed. The relay status is controlled by
commands.
example:
Function code 0x05 write DO2 switch quantity output, make NC2, COM2 open, NO2, COM2 close, write value is
FF 00; make NC2, COM2 close, NO2, COM2 open, write value 00 00.
Modbus RTU protocol write switch quantity output:
Send
01 05 00 11 FF 00 DC 3F
Device ModBus address
Function
code
Switch quantity
address
Write value CRC check code
Receive
01 05 00 11 FF 00 DC 3F
Device ModBus address Function code
Switch
quantity
address
Write value CRC check code
Modbus TCP protocol write switch quantity output:
Send
00 01 00 00 00 06 01 05 00 11 FF 00
Transmission
identifier
Protocol
identifier
length
Unit
identificatio
n
Function
code
Switch quantity
address
Write value
Receive 00 01 00 00 00 06 01 05 00 11 FF 00