Introduction to OMNIS - Variables

Introduction

OMNIS software uses variables to create flexible, repeatable and traceable workflows across methods, operating procedures and system configurations. Variables allow key parameters to be defined once, stored by category, and reused wherever they are needed. This reduces manual entry, minimizing errors and improving consistency across analyses. 

Within OMNIS, variables exist at multiple levels, including system, method, command and equipment variables. These variables can also be incorporated into calculations, enabling dynamic method behavior that adapts to sample-specific or system-specific inputs. This article introduces the different types of variables available in OMNIS. 

Types of Variables

1. System Variables
   1. Variables that are defined across the whole system including methods and operating procedures. 
   2. Defined in the samples work area. 
   3. Blank values can be saved as system variables. 
2. Method Variables
   1. Method specific variables. 
   2. Not commonly used.
3. Command Variables
   1. Variables that are generated by individual commands in the process sequence. 
   2. The endpoint of a titration command will be a command variable. 
4. Equipment Variables
   1. Assigned work systems, sensor variables, rack variables and solution related variables. 
   2. The titer value written to the RFID chip of a bottlecap is one example. 

Additional Support

If you encounter any issues or need additional help, please submit a support ticket through Metrohm Technical Support. 

For additional training on any of these topics, explore our available Metrohm Titration Training courses or learn more about our Metrohm Custom Training options.