What measures are required to operate the analog inputs?

What measures are required to operate the analog inputs of this module without errors?

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Top answer

The following conditions must be met to operate this module without error:

Set a low resistance connection between the reference point of the analog measuring circuit and the CPU connection.
If the sensors are equipped with external voltage, you must connect the external voltage mass to the CPU mass.
Skip unused COMP + and COMP- inputs
Connect all M- unused channels by ground
Connect ground and M- isolated transmitters
If you do not have isolated transmitters, connect the ground to a ground conductor.
Using a thermometer and resistance, M- should be connected to ground
To measure current, an external resistor of a 50 ohm sensor must be connected to the analog inputs between M + and M-

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