Operator Interface (OI) Clause Samples

Operator Interface (OI). The PLC shall be equipped with a direct interface to a programmable OI display in combination with switches and pushbuttons. The OI shall be a flat panel color touch screen display with programmable screen views. The OI shall contain graphical (programmable) pushbuttons and data displays as required for an operator to manually control and view all processes required for safe nitrogen producer operation such as failure messages and diagnostic information to assist in operation and troubleshooting. The OI shall have separate screen views for alarming, trending, operator control and process monitoring of the nitrogen producer. Furthermore, the following OI are required (combination OI display, switches, and buttons): Power ON/OFF, Auto/Manual, Start, Stop, and indicators for Power ON, Warm-up Mode, Running, Standing By, etc. The PLC shall be capable of accepting input from the operator to allow for emergency operation. The operator shall be able to monitor and modify maintenance requirement messages, access troubleshooting test functions and monitor alarm set points and incident histories. The controller shall also be capable of interfacing with a computer and/or a touch screen display to enable transmission of real time data when prompted. The data recorder shall be able to download and record information from the controller processor via a suitable and portable communication interface (e.g. an RS-232 or RJ-45 port).