Product Function Introduction; Ai Input; Analog Quantity Range; Trigger Mode - Ebyte ME31-XAXX0600 User Manual

I/o networking module

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Chengdu Ebyte Electronic Technology Co.,Ltd

4 Product function introduction

Analog input AI measurement current signal, with a collection range of 0-20mA or 4-20mA, an accuracy of

3 ‰, and a resolution of 12 bits. Adopting single ended input, sampling frequency 10Hz, input impedance 100 Ω.

Set the sampling range for all AI channels, with valid values of 1 and 0 (default 0).

Configuration is 0: represents 0-20mA

Configuration is 1: represents 4-20mA

[Note] AI Configuration Description

(1) The AI sampling range for each channel can be set. When the AI channel sampling range is configured to

4-20mA sampling, 0 is displayed if the current signal is below 3.5mA, and 4 is displayed if it is above 3.5mA and

below 4mA. There is no conversion limit for signals greater than 20mA, but it cannot exceed 25mA (exceeding

25mA may pose a risk of equipment damage).

(2) The starting address of the AI channel sampling range parameter is 0x04B2, the register type is holding

written parameter value is not within the range of 0-1, the closest value will be automatically taken for writing. If

the writing sampling range parameter is 2, the device takes 1 as the sampling range parameter, and Modbus does

not return an error command.

(1) Not triggered: mode off.

(2) Rising trigger: When the AI input value becomes greater than the set AI trigger high value, the AI trigger

becomes high (i.e. the output state is 1), generating a rising edge trigger. After triggering, as long as the AI value is

not lower than the set AI trigger low value, the current output value remains 1 (can be combined with DO linkage).

(3) Descending trigger: When the AI input value becomes less than the set AI trigger low value, the AI trigger

becomes low (i.e. the output state is 0), generating a falling edge trigger. After triggering, as long as the AI value is

not higher than the set AI trigger high value, the current output value remains 0 (can be combined with DO

linkage).

(4) Bilateral trigger: When the AI input value becomes greater than the set AI trigger high value, the AI trigger

becomes high (i.e. the output state is 1), generating a rising edge trigger. After triggering, as long as the AI value is

not lower than the set AI trigger low value, the current output value remains 1; When the AI input value becomes

less than the set AI trigger low value, the AI trigger becomes low (i.e. the output state is 0), generating a falling

edge trigger. After triggering, as long as the AI value is not higher than the set AI trigger high value, the current

output value remains 0 (can be combined with DO linkage).

ME31-XAXX0600_UserManual_CN

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