Closed-Loop Control Is Now Standard.Closed-loop control of pressure and velocity; along with a graphical touch-screen operator interface, are new standard features on a 300-ton hydraulic injection press from Hull/Finmac Inc., Warminster, Pa. The closed-loop control is designed to allow inexperienced in·ex·pe·ri·ence n. 1. Lack of experience. 2. Lack of the knowledge gained from experience. in operators to run and monitor machine functions effectively. The touchscreen See touch screen. allows for easier machine set-up and operation, and it provides access to PLC and machine control diagnostics (1) Software routines that test hardware components (memory, keyboard, disks, etc.). Diagnostics are often stored in ROM chips and activated on startup. (2) Error messages in a programmer's source code that refer to statements or syntax that the compiler or assembler . Each control screen displays a picture of a machine function (such as clamping clamping (klamp´ing) in the measurement of insulin secretion and action, the infusion of a glucose solution at a rate adjusted periodically to maintain a predetermined blood glucose concentration. ), along with function keys for settings. |
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