RUT955 Current Measurement with Analog Input: Difference between revisions

Revision as of 14:35, 3 March 2025

Main Page > EOL Products > RUT955 > RUT955 Hardware Application Examples > RUT955 Current Measurement with Analog Input

If you want to measure the current with RUT955 you need to connect a resistor as shown in the picture below. Note that voltage on pin 9 must never exceed 24V.

Configure resistor value and analog input name in the router's WebUI (see here).

This is commonly used with 4-20mA standard sensors. If your sensor has linear characteristics, you can also configure a sensor slope and offset to directly get measured values. To have correct value in WebUI, the resistor needs to be 1200ohm, if 24 V power supply is being used. If different voltage is used, an Ohm's law formula can be used to calculate the correct value (U/I=R).

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 Configure resistor value and analog input name in the router's WebUI (see [[RUT955 Input/Output#Custom_Labels|here]]).
-This is commonly used with 4-20mA standard sensors. If your sensor has linear characteristics, you can also configure a sensor slope and offset to directly get measured values.
+This is commonly used with 4-20mA standard sensors. If your sensor has linear characteristics, you can also configure a sensor slope and offset to directly get measured values. To have correct value in WebUI, the resistor needs to be 1200ohm, if 24 V power supply is being used. If different voltage is used, an Ohm's law formula can be used to calculate the correct value (U/I=R).
 [[Category:RUT955 Hardware Application Examples]]