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Understanding Analog Inputs and Transducers in Enbase

Learn how Enbase uses analog inputs and transducers, which signal types are supported, and what to review when an analog value does not look correct.

Analog inputs allow Enbase to monitor continuously changing measurements such as pressure, temperature, level, or other process values when those measurements are provided by a compatible analog sensor or transducer.

What Is a Transducer?

A transducer converts a physical measurement into an electrical signal that the Enbase Expansion I/O Module can read. Enbase then converts that raw signal into an engineering value that can be displayed as a Tag.

For example, a pressure transducer may convert pressure into a 4 to 20 mA signal. Enbase reads that signal and scales it so the Tag displays the corresponding pressure value.

Supported Analog Signal Types

Compatible Enbase Expansion I/O Modules support common industrial current and voltage signals, including:

  • 4 to 20 mA current
  • 0 to 20 mA current
  • 0 to 5 V voltage
  • 1 to 5 V voltage

The channel configuration must match the signal type used by the connected sensor. The specific channel and configuration for an installation should be confirmed using the panel drawings or Enbase documentation provided for that site.

 How Enbase Displays the Analog Value

The analog input is represented in Enbase by a Tag. The Tag configuration defines how the raw signal is interpreted and displayed, including items such as:

  • Minimum and maximum values
  • Unit of measure
  • Scaling information
  • Alarm limits when applicable
  • Data logging and scan settings

Correct scaling is important because an incorrectly configured range can cause the value shown in Enbase to differ from the actual field measurement.

Two Wire 4 to 20 mA Transducers

On supported Enbase Expansion I/O Modules, analog input terminals can provide power to compatible two wire 4 to 20 mA transducers. The exact wiring and channel configuration depend on the installation, so use the drawings provided for the panel rather than applying a generic wiring method.

 What If the Analog Value Looks Wrong?

If an analog Tag is displaying an unexpected value, review the following information before making configuration changes:

  • The Tag name and current value
  • The expected measurement range for the sensor
  • The configured minimum and maximum values
  • The Scan Status for the Tag
  • Any related Scan Errors or System Events

Incorrect signal type, scaling, wiring, or a failed sensor can affect the reported value. If the cause is not clear, contact Enbase Support and provide the asset name, Tag name, expected value, and value currently shown in Enbase.