PLC SACA Study Guide Questions And
Answers
If a network is not available, what type of connection can be used to configure the
controller's IP address? - ANSWER -USB
Two addresses are used for Ethernet communications, Media Access Control
(MAC) and _____ - ANSWER -Internet Protocol (IP)
Th...
If a network is not available, what type of connection can be used to configure the
controller's IP address? - ANSWER -USB
Two addresses are used for Ethernet communications, Media Access Control
(MAC) and _____ - ANSWER -Internet Protocol (IP)
The IP address of a CompactLogix PLC that already has an IP address is viewed
and edited using __________ communications software. - ANSWER -RSLinx
The 1769-L16ER controller's USB port is USB __________ compatible and
operates at 12 Mbps. - ANSWER -2.0
A PLC and PC are connected in a(n) __________ network using a single Ethernet
cable. - ANSWER -Point to point
What is the purpose of configuring the IP address and subnet of a PC and PLC? -
ANSWER -Enable communication between them
What is each group of numbers separated by periods or dots in an IP address
called? - ANSWER -Octet
What is the purpose of the last three digits of an IP address? - ANSWER -
Identifies a single device
What is a USB Type B connector most likely connected to? - ANSWER -PLC
USB communication port
The IP addresses of a PC-PLC point-to-point connection will be ______ -
ANSWER -Different IP addresses
, A problem with identifying a controller's firmware revision by examining the
hardware's __________ is that it is often inaccessible once installed. - ANSWER -
Product label
What applied voltage level would cause the input indicator to turn on in an Active
Hi 24 VDC input module? - ANSWER -+24 VDC
All PLCs must have a(n) __________ to operate. - ANSWER -User developed
project
In the RUN mode the programmable controller __________ the ladder logic and
sets outputs on or off. - ANSWER -Scans
What should be noted when the programmable controller processor displays a
solid green RUN indicator? - ANSWER -Processor is functioning properly -
program is being executed
A(n) __________ is used to download hardware configurations and programs to a
PLC. - ANSWER -PC
What does the absolute I/O address identify on a PLC input module? - ANSWER -
Actual physical location
_____ is an embedded operating system that controls how microprocessor-
controlled hardware devices operate. - ANSWER -Firmware
______ displays networks and devices in a similar manner to Windows Explorer. -
ANSWER -Whoactive
A (n) __________ is a file that contains a hardware configuration and control
program. - ANSWER -Project
A PLC requires much less __________ than a hardwired relay panel that could do
the same job. - ANSWER -Space
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