Chengdu Ebyte Electronic Technology Co., Ltd.
E22-230T22S User manual
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co.,Ltd.
17
7 Register read and write control
7.1 Command format
In configuration mode (mode 2: M1 = 1, M0 = 0), the list of supported commands are as follows (only 9600, 8N1
format is supported when)
：
No.
Command
format
Description
1
Set register
Command: C0+starting parameters
Response: C1+starting parameters
E.g 1: Channel is 0x09
command starting address length parameter
Send:
C0
05
01
09
Returen: C1
05
01
09
E.g 2: Configure module address (0x1234), network address (0x00), serial port (9600 8N1) and
air data rate (1.2K).
Send: C0 00 04 12 34 00 61
Return: C1 00 04 12 34 00 61
2
Read register
Command: C1+starting parameters
Response: C1+starting parameters
E.g 1：Read channel
command starting address length parameter
Send:
C1
05
01
Returen: C1
05
01
09
E.g 2: Read module address, network address, serial port and air data rate.
Send: C1 00 04
Return: C1 00 04 12 34 00 61
3
Set
temporary
registers
Command: C2+starting parameters
Response: C1+starting parameters
E.g 1: Channel is 0x09
command starting address length parameter
