10
rate value table.
check code
table.
4.3 Input “06” to write the command of register
Input “06”to write single command, below is the command to change the baud rate as 19200：
01
06
00 21
00 04
D8 03
ModBus
address
To write
command
Write in 40034 register
The write value of 40034
is 4, the corresponding
baud rate is 19200, see
more details in baud rate
table
CRC parity code
If the revision is successful, module will return 01 06 00 21 00 04 d803.
4.4 Factory default value
Device address
Baud rate
Voltage for
reference
Parity check code
40033 address is 1
9600，that is, 40034
address is 3
2400
No parity check：40035 address is 0
5. Software instructions
5.1.MoBusCRC16 calculator
Ebyte will provide the MoBusCRC16 calculator for your convenience, which will automatically add the
CRC16 parity check code after the input data. Please pay attention to the format, if it’s less than f, then should
add 0 in the front, such as 01, 06, and each digit should followed by a blank.
5.2.E820 testing software
In the upper monitor software, the start address of register is set in the address column, the length should
be from start address to end address. For example, address is 1, which means to read from 40001. The length
of 49 should read 49 registers from 40001-40049. Analog quantity input(1,2,3,4) should be the real current
value input by the current channel. Channel (1,2,3,4) conversion value shows that the analog signal of current
channel converted to the original value after collection.
