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StarTalk™ DTM Help for StarPac 3 System
© Flowserve Corporation
Version 1.0.0 – Printed November 1, 2013
Local Interface vs. LC/DCS Conflicts
The StarPac 3 allows the user the ability to control and program a field device remotely through
a PLC or DCS interface. Since the StarPac 3 has a local interface, it is important to remain
cognizant of who has command of the StarPac 3 control system. If the StarPac 3 is being
commanded by a PLC or DCS it is possible that any calibrations or mode changes being made
at the local user interface will be overwritten by the supervisory PLC or DCS.
Be sure to disable or suspend communications with the supervisory system while using the local
user interface. It is recommended that an “off line” feature be programmed into the supervisory
system to only monitor the system so that the local user interface can be used. This will prevent
someone from modifying the StarPac 3 without permission of the control room.