<html><body><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000"><div>Dear Pablo,<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>To help keep a better record of what limits we changed in the PLC code to try and remove interlock trips, below are the changes we made the afternoon of October 3, 2016.<br data-mce-bogus="1"></div><ul style="list-style-type: undefined;"><li>Changed threshold for all comparators from 0.1 V to 1.2 V.<br data-mce-bogus="1"></li><li>Changed Source B for ramp rate comparison from 0 to 1<br data-mce-bogus="1"></li><li>Changed Nitrogen Liquid Level limit from 90 to 95<br data-mce-bogus="1"></li><li>Added "always off" tag to Soft_Overcurrent logic<br data-mce-bogus="1"></li></ul><div>Best regards,<br data-mce-bogus="1"></div><div>Tyler<br data-mce-bogus="1"></div></div></body></html>