Chengdu Ebyte Electronic Technology Co.,Ltd.
E150-400T30S user manual
Copyright ©2012–2022
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
14
voltage value of dac1 to 1.2V.
01
10
00 00
00 02
04
3F 99 99 9A
C5 AF
Device MODBUS
address
Function
code
Register
head
address
Number
of
registe
rs
Number of
bytes
written
Data written
CRC check
code
Note: the CRC check code of the last two bytes of the sending instruction needs to be calculated by
the user.
Serial port sending: 01 10 00 00 00 02 04 3F 99 99 9A C5 AF
Remote wireless transmission: 01 06 07 E8 00 00 F8 8A
After sending the above command to the device via serial port or wireless, the device will return the
following values to the serial port or wireless:
01
10
00 00
00 02
41 C8
Device MODBUS
address
Function
code
Register address
Number of registers
CRC check
code
Phenomenon: The DAC1 pin of the module outputs a voltage of 1.2V.
Serial port receiving return value: 01 10 00 00 00 02 41 C8
Remote wireless reception return value: 01 10 00 00 00 02 41 C8
5.6 Broadcast address
When the module receives commands in non MODBUS format, it will send the received data as transparent
data.
For example: set the address of module a to 0xFFFF and the channel to 0x04.
When module a is used as the transmitter (the same mode, transparent transmission mode), all
receiving modules under 0x04 channel can receive data to achieve the purpose of broadcasting.
5.7 Listening address
For example: set the address of module a to 0xFFFF and the channel to 0x04.
When module a is used as the receiver, it can receive all the data under channel 0x04 to achieve
the purpose of monitoring.
