PLC Basics
True/False
PLC stands for Programmable Logic Computers
False
PLC is an abbreviation for Programmable Logic Controllers.
What is the voltage reading across two closed contacts?
ZERO Volts
The RSLinx __________ contains shortcuts to the most commonly used menu functions.
Toolbar
This is the date of the next exam, PLC 1
October 16, 2020
The basic operation of a PLC is to __________ instructions, monitor the status of input devices and produce outputs based on the status of the inputs.
Scan
Undervoltage protection in a two wire control system
Disables automatic restarts after a power loss
The Who Active utility can be used to __________ the operation of a PLC.
Monitor
The final Day of Classes
December 4th, 2020
Communications drivers are software programs that connect software to __________.
The purpose of the NEC (National Electric Code) is to
Provide practical safeguarding of persons and property from the hazards arising from the use of electricity.
In the module tag Local:1:I.Data, Local refers to the module's __________.
Location
The nickname of Bethlehem, the town in which your hotel resides.
The Christmas City
Programmable Logic Controllers (also called PLCs) are industrial __________ that control machines and other industrial applications.
Computers
As frequency of an AC source decreases...
Capacitive Reactance will increase
The two basic types of input instructions used by the ControlLogix 5000 are __________ and __________.
XIC, XID
New per diem cards will be presented when?
Today! (Monday, October 5!)
1756-L7x PLCs use a(n) __________ memory to back up memory when power is off.
Non-volatile
What is the total power of 4 quarter watt resistors wired in Parallel
1 Watt
Boolean tags are __________ memory locations used to store the status, such as the on/off condition, of a device or instruction.
1 Bit
True/false
In actuality, Pennsylvania is not a state.
True, it's a commonwealth