Chengdu Ebyte Electronic Technology Co.,Ltd.
ME31-XAAX0440_UserManul_EN
Copyright ©2012–2021,Chengdu Ebyte Electronic Technology Co.,Ltd.
19
4.9 MODBUS parameter configuration
4.9.1 DO related registers
Register function
Register
address
Register
type
Number Operation
Data range/remarks
Related function
codes
DO status
0x0000
Coils
4
RW
Write to change the
current DO status, read
to get the current DO
status
R
：
0x01
W
：
0x0F,0x05
Status when DO is
powered on
0x0064
Holding
register
4
RW
The default state of the
coil after power-on
R
：
0x01
W
：
0x0F,0x05
DO working mode
0x0578
Holding
register
4
RW
0x0000 level no follow
mode
0x0001 pulse without
follow mode
0x0002 follow mode
R
：
0x03
W
：
0x06,0x10
DO pulse width
0x05DC
Holding
register
4
RW
Range: 50
～
65535ms
R
：
0x03
W
：
0x06,0x10
4.9.2 AI register list
Register function
Register
address
Register
type
Number Operation
Data range/remarks
Related function
codes
AI raw value
0x0000
Input
register
4
R
Raw sample value of
analog input
R
：
0x04
AI engineering quantity
integer value
0x0064
Input
register
4
R
16-bit integer type, unit
uA
R
：
0x04
AI engineering quantity
floating point value
0x00C9
Input
register
4
R
32-bit floating point type,
unit mA
R
：
0x04
AI filter parameters
0x04B0
Holding
register
1
RW
Analog input filter
parameter, range 1-16,
the smaller the number,
the more sensitive, the
larger the more stable,
the default is 6
R
：
0x03
W
：
0x06,0x10
AI sampling range
0x04B2
Holding
register
1
RW
Sampling range of all AI
channels
0x0000: 0
～
20 mA
0x0001: 4-20mA
R
：
0x03
W
：
0x06,0x10
