Analog Output Setup

The controller has the option of two analog outputs. The outputs are ranged for a 4 – 20 milliamp signal or a 0 – 20 milliamp signal. Each output comes with a factory default configuration dependent on the application. Each output can be modified prior to shipment to your facility or in the field by a supervisor.

 

Analog Output Terminals

Analog output 1 – terminals 24 and 25

Analog output 2 – terminals 25 and 26

 

Assignment

The analog output assignment can be modified depending on your system requirements. To change the Assignment first select which analog output you want to change by selecting it in the pull-down menu just below the main menu list.  Clicking on this value will display an input box, and then you can use the pull-down menu to select the desired parameter. Once selected, click OK and the displayed assignment under Value will be the current assignment type. The following is a list of the options:

PV 1 retrans        Input 1 retrans        

Loop 1 inc        Input 2 retrans        

Loop 1 dec        Input 3 retrans        

Loop 1 combo        PV1 retrans w/ expo range        

PV 2 retrans        O2 offset log        

Loop 2 inc        SP1 retrans        

Loop 2 dec        SP2 retrans

Loop 2 combo        DP retrans

Disassociation

Nit_Pot

Hydrogen

 

Note – If a blank line is displayed, DO NOT select it.  The will only display an error for the output assignment field.

 

Offset

This is the starting point, the Process Variable value at which you get 4 milliamps.  Clicking on this value will display an input box from which the user can select a new value.  The range is –32768 to 32767.

 

Range

This is a Process Variable value between 4 and 20 milliamps.  Clicking on this value will display an input box from which the user can select a new value.  The range is –32768 to 32767.

 

Current Selection

This option will display the output option that is currently selected.  The options are: 4 – 20 mA or 0 – 20 mA.

 

O2 Exponent Range

This will set the exponent range for Oxygen.  The range is 0 – 10.