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Review 2
1. Pushbuttons, limit switches, and relay contacts are
examples of devices that may be connected to PLC
____________ inputs.
2. Solenoids, relay and contactor coils, and indicator lamps
are examples devices that may be connected to PLC
___________ outputs.
3. The _____ contains the system memory and makes
decisions based on instructions stored in program
memory.
4. ______ _____ is a PLC programming language that
incorporates programming functions that are graphically
displayed to resemble symbols used in hard-wired
control diagrams.
5. _________ ____ and ________ _____ ________ are also
common examples of ways to program a PLC.
6. A PLC program is executed as part of a repetitive
process referred to as a ____.
7. When talking about computer or PLC memory, 1k refers
to ______ bits, bytes, or words.
8. Software that is burned into EPROM is called
____________.
9. An RS-232/PPI Multi-Master cable or a USB/PPI-Multi-
Master cable may be used to connect a personal
computer to an S7-200 PLC’s __________ connector.
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