With reference to the below mentioned lead time. Kindly, kindly request Ms. Murphy to expedite the application modification works considering this is resulting in revenue loss due to unplanned shutdown of the skid.
Moreover, the logic modification is being carried out in already commissioned PLC and HMI application by vendor, and we as the end-user will be receiving the updated PLC and HMI applications only, with no information of actual modification activities performed. Kindly request Ms. Murphy to share the modification activities log elaborating the logic routines wherein the software changes have been performed and provide application design level software access so that we are comfortable in identifying relevant commissioning checks post download of the updated applications.