Analog Inputs

Few variants of ZENYX support direct analog read inputs. ZENYX supports 4 channels of 0-20mA read. The terminals A1 to A4 terminals are available for 4 channels of analog.

In most of industrial applications, 4-20mA values are mapped to given process values. ZENYX has advanced data scaling features to handle process values of different applications.

While user can perform scaling within Analog Inputs, we recommend using generic Data Scaling section of ZENYX/LYNX for analog data interpolation.

Analog Input Settings

Analog Inputs Settings has 4 buttons for 4 channels, which can be enabled/disabled and configured independently.

Analog Inputs feature has to be enabled (check box) in LYNX Feature Settings to process analog channels.

Analog Input Configuration

  1. A given analog channel (A1 to A4) has to be enabled by clicking the checkbox.

  2. Output values ranges [minOutVal, maxOutVal]: These are the output value ranges (minimum and maximum) of the analog module. These can be used for basic linear scaling of inputs. If set to [0, 100], the analog output will be 0 to 100 for given input mA range (0-20).

  3. Input current range [minmA, maxmA]: This is the range of input milli Amperes to be read. For most of the applications, this should be 0 and 20. For instrument calibration, the maxmA may be set lower than 20 (say 19.8) to map to real-world process values.

  4. varName: The variable name in which output value will be stored.

  5. varName2: For analog inputs, this is optional additional variable name in which analog output will be stored. Keep it blank unless necessary.

  6. varFactor: The output value will be multiplied by the varFactor. We will keep it 1.

Analog Input Source Wiring

There are 4 analog inputs (A1, A2, A3 and A4) terminals along with two GND terminals.

Sample connection of 4 analog sources connected to ZENYX. This is a typical scenario of ZENYX connected to environmental sensors with multiple analog outputs.

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