# Converting ClockedSum and Accumulate Functions from In-Sight Explorer to In-Sight Vision Suite

The ClockedSum and the Accumulate functions differ in the following way:

- The ClockedSum function Functions are tools that are available in Spreadsheet for processing and analyzing acquisitions or other results. You can add functions to your Spreadsheet job to create tool chains and produce results for specific applications. sums the referenced value before that value is updated by the function specified in Event.

- The Accumulate function sums the referenced value after that value is updated by the function specified in Event.

The functionalities of the Accumulate and ClockedSum functions are reversed in In-Sight Vision Suite compared to In-Sight Explorer.

The Job A job is a user-configured program in Spreadsheet consisting of functions and designed for specific applications. You can create and edit jobs using the Spreadsheet interface, and load them on a vision system for deployment in a live environment. Converter tool still converts these functions correctly. This means that if there is a ClockedSum function in In-Sight Explorer, after the job conversion, it shows up as an Accumulate function in In-Sight Vision Suite. Therefore, Cognex strongly recommends using the Job Converter tool to convert jobs from In-Sight Explorer to In-Sight Vision Suite, especially if the In-Sight Explorer job uses the ClockedSum function or the Accumulate function. For more information, see Convert In-Sight Explorer Jobs into In-Sight Vision Suite Jobs.