Ebyte E851-RTU User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd E851-RTU(4440-ETH) User Manual
Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd
20
Modbus TCP protocol reads differential analog input:
Transmit
00 01
00 00
00 06
01
03
00 10
00 01
Transmission
identifier
Protocol
identifier
length
element ID
Function
code
Analog start address
Read quantity
Receive
00 01
00 00
00 05
01
03
02
26 DA
Transmission
identifier
Protocol
identifier
length
element ID
Function
code
Return bytes
Input value of
differential
analogue
Function code 0x04, read AI1 input, assuming AI1 input is 9946uA, the corresponding value should be 0x0x26DA
Modbus RTU protocol reads differential analog input:
Transmit
01
04
00 10
00 01
30 0F
Device ModBus
address
Function code
Analog Start Address
Read quantity
CRC check code
Receive
01
04
02
26 DA
22 CB
Device ModBus
address
Function code
Return bytes
Differential analog input
value
CRC check code
Modbus TCP protocol reads differential analog input:
Transmit
00 01
00 00
00 06
01
04
00 10
00 01
Transmission
identifier
Protocol
identifier
length
element ID
Function
code
Analog Start
Address
Read quantity
Receive
00 01
00 00
00 05
01
04
02
26 DA
Transmission
identifier
Protocol
identifier
length
element ID
Function
code
Return bytes
Differential analog
input value

Ebyte E851-RTU Specifications

General

Brand	Ebyte
Model	E851-RTU
Category	Modem
Language	English