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Chengdu Ebyte Electronic Technology Co.,Ltd.
【4AI+2DO】 MA02-XACX0420
User Manual
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd.
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Figure 3-5-1 Installing positioning holes
4.Product features
4.1 The analog input AI
4.1.1 Analog input AI description
Analog input AI measurement current signal, acquisition range 0 ~ 20mA or 4 ~ 20mA, accuracy
3‰, resolution 12 bits. Single-end input, sampling frequency 10Hz, input impedance 100
ohm.
Figure 4-1-1 Analog input AI interface
4.1.2 Simulate input AI filtering parameters
The filtering parameters of the AI channel can be set. The value ranges from 1 to 16, and the default
value is 6.
Note:
(1) The filtering parameter of AI channel is the same filtering parameter shared by all AI
channels. The larger the filter parameter is, the stronger the anti-interference ability of AI sampling is,
but it has the delay.
(2) The address of AI channel filter parameter is 0x04B0, and the register type is hold register.
Function codes 0x06 and 0x10. When AI filtering parameter is written, if the parameter value is not
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