1766-RM001A-EN-P MicroLogix 1400 Programmable Controllers ...

676 GlossarysourcingA term used to describe current flow between two devices. A sourcingdevice or circuit provides a power.statusThe condition of a circuit or system.terminalA point on an I/O module that external devices, such as a push button orpilot light, are wired to.throughputThe time between when an input turns on and a corresponding outputturns on or off. Throughput consists of input delays, program scan, outputdelays, and overhead.trueThe status of an instruction that provides a continuous logical path on aladder rung.uploadData is transferred from the controller to a programming or storagedevice.watchdog timerA timer that monitors a cyclical process and is cleared at the conclusion ofeach cycle. If the watchdog runs past its programmed time period, itcauses a fault.writeTo send data to another device. For example, the processor writes data toanother device with a message write instruction.Publication 1766-RM001A-EN-P - October 2008