New in the Community? Get started here

Schneider Electric Exchange Community

Discuss and solve problems in energy management and automation. Join conversations and share insights on products and solutions. Co-innovate and collaborate with a global network of peers.

Register Now
Knowledge Base
Showing results for 
Search instead for 
Did you mean: 

- Who are the top users of September? Discover them here!

- Check out the ESS Active Energy Management Blog now! 

- Join us on October 23rd for a live Panel session to discuss The Power of a Sustainable Ecosystem with Hervé Coureil, Chief Digital Officer of Schneider Electric and other great speakers. Register here!

Coefficient table is full when adding a MR-VAV to an SLI controller


Coefficient table is full when adding a MR-VAV to an SLI controller.

Product Line



I/NET Site with MR-VAV


Coefficient table is full when adding a MR-VAV 


An MR-VAV needs 7 Conversion Coefficients in order to complete the update MCI, but it can re-use coefficients which already exist in the table,e.g.0.018 and -148 for thermistors. If your table is full, see if you have duplicates of values in your Coefficient table. If you do re-direct, the points that have the same values. For example if 4 and 15 are the same values then select coefficient 4 for all of the points using coefficient 15 and change 15 to 0 and 0. That will open up one coefficient at line 15.

See if their are more to open up. If not and you have close values, you might merge the values that are close together. Check to see how much it changes your actual output value. If it isn't much then that will probably work fine. I change some of my CFM Coefficient tables to make an 8 in. duct to match a 10 in. duct and the actual CFM did not change enough to worry about.

If the value is close but not close enough, try adjusting the hardware coefficients for those points to fine tune them.

If you then get an error indicating that your engineering table is full, open that one up to do the same as above. Point CFM, percentages, etc. to one CFM and one percentage.

Tags (1)
Labels (1)
No ratings