Final Exam Study Guide Flashcards
In a non energized relay coil there is a path thru________
the NC contacts
A switch pole is the_________
internal conductor
What file contains the main program
Program file 2
In a TON timer when ACC and PRE what is the status of the EN and DN bits
EN-ture
DN-flase
Why would we put a one shot devise in a ladder logic
They are used with counter reset instruction when the counter must start a new count before the reset input contacts return to their normal state
In a up counter when is the OV bit high
When the counter increments above the maximum positive value.
What is the SUS instruction used for
used to trap and identify specific conditions during system troubleshooting and program debugging
What is the hysteresis range for a ladder
19-26; 26 turns on 19 turns off
Networking standard that takes advantage of commercial off the shelf hardware
Ethernet I/P
How do you name a subroutine in an SLC500
JSR, SBR, RET
Should a jump instruction be programmed into a MCR zone?
NO?
Jump instruction must have the same ________ number to be used on different rung
reference
_______________made has the memory address of the data supplied in the instruction
Direct addressing
Indirect addressing mode is identified how
[ ]
Indexed addressing mode is identified how
and the logical address referred to as the base addresss
___________can be used to determine if two bits are the dame in different words of data
AND logic
How does an FLL instruction transfer data
copies the contents of one register location to a specified number of other register loctioans
What is the starting address for SQO and SQC instructions
N7
Analog modules
Voltage and current sensing Inputs
Temperature Sensors etc.
Ladder logic is based on traditional
relay ladder logic
What is the structured text language
BASIC, C, or PACAL
What is sequential function chart
GRAFCET this is a graphical language used most often for sequential control problems.
SFC is often used for the basic sequential program flow
Function block diagrams inputs are the______ and outputs are on the _________
Left
Right
A for-do loop
allows you to efficiently write a loop that needs to execute a specific number of times.
in proportional control how are error and proportional gain related
The control effort is proportional to the error in a proportional control system, and that’s what makes it a proportional control system. If it doesn’t have that property, it isn’t a proportional control systems.
