Podcast
Questions and Answers
What type of information is stored in the Program Files of the SLC 500?
What type of information is stored in the Program Files of the SLC 500?
- Status of input terminals and output terminals
- Information for shift registers and sequencers
- Subroutines accessed from the main program
- Controller operating information and user ladder logic program (correct)
What is the maximum size of Program File 2 in the SLC 500?
What is the maximum size of Program File 2 in the SLC 500?
- 15K words
- 8K words
- 10K words
- 12K words (correct)
Where is the information for shift registers and sequencers stored in the SLC 500?
Where is the information for shift registers and sequencers stored in the SLC 500?
- System Program Reserved Main Ladder
- Subroutine 255 Ladders
- Data Files (correct)
- Program Files
Which type of file in the SLC 500 stores the state of input terminals and output terminals?
Which type of file in the SLC 500 stores the state of input terminals and output terminals?
What type of numeric information is stored in the Data Files of the SLC 500?
What type of numeric information is stored in the Data Files of the SLC 500?
What is the main function of the Power Supply in a PLC?
What is the main function of the Power Supply in a PLC?
Which component of a PLC controls the entire PLC and is immune from electrical noise?
Which component of a PLC controls the entire PLC and is immune from electrical noise?
In a PLC, where is the user program entered?
In a PLC, where is the user program entered?
What type of programming devices is most commonly used with a PLC?
What type of programming devices is most commonly used with a PLC?
Which component of a PLC allows the PLC to affect the outside world by controlling output devices?
Which component of a PLC allows the PLC to affect the outside world by controlling output devices?
What year did GM write the design criteria for a computer-based 'relay replacer'?
What year did GM write the design criteria for a computer-based 'relay replacer'?
Why were relay control circuits deemed too large and unwieldy?
Why were relay control circuits deemed too large and unwieldy?
What is the primary purpose of a PLC (Programmable Logic Controller) in machine control?
What is the primary purpose of a PLC (Programmable Logic Controller) in machine control?
What led to the development of PLCs as a replacement for relay control circuits?
What led to the development of PLCs as a replacement for relay control circuits?
What is the most widely used industrial process control technology today?
What is the most widely used industrial process control technology today?
What is the purpose of ladder logic in a PLC program?
What is the purpose of ladder logic in a PLC program?
Which language uses a symbolic set of instructions to create the controller program in PLC?
Which language uses a symbolic set of instructions to create the controller program in PLC?
What is the function of the Examine If Closed (XIC) instruction in a ladder program?
What is the function of the Examine If Closed (XIC) instruction in a ladder program?
What does the Examine If Open (XIO) instruction in a ladder program look and operate like?
What does the Examine If Open (XIO) instruction in a ladder program look and operate like?
Which of the following symbols are the basic symbols of the logic ladder diagram instruction set?
Which of the following symbols are the basic symbols of the logic ladder diagram instruction set?
What is the primary purpose of programming a PLC?
What is the primary purpose of programming a PLC?
What are the two main types of symbols used in programming a PLC?
What are the two main types of symbols used in programming a PLC?
How does a PLC work in terms of its scan cycle?
How does a PLC work in terms of its scan cycle?
What do contacts describe in a control system?
What do contacts describe in a control system?
In ladder logic, what happens if all input bits on a rung are 'True'?
In ladder logic, what happens if all input bits on a rung are 'True'?
What is the purpose of a one-shot [timed pulse] in SLC 500 programming?
What is the purpose of a one-shot [timed pulse] in SLC 500 programming?
In SLC 500 programming, what is the function of a latching circuit?
In SLC 500 programming, what is the function of a latching circuit?
Which type of circuitry could be used to eliminate conflicts between control signals in SLC 500 programming?
Which type of circuitry could be used to eliminate conflicts between control signals in SLC 500 programming?
In SLC 500 programming, what is the main advantage of using an additive sequencer?
In SLC 500 programming, what is the main advantage of using an additive sequencer?
What is the purpose of using consecutive memory bits for steps in SLC 500 programming?
What is the purpose of using consecutive memory bits for steps in SLC 500 programming?
What is the standard value for T R in Integer Files?
What is the standard value for T R in Integer Files?
In Integer Files, how many word elements can be assigned by the user?
In Integer Files, how many word elements can be assigned by the user?
What is the range of files that can be assigned by the user in Integer Files?
What is the range of files that can be assigned by the user in Integer Files?
Which basic programming instruction is used to examine if a bit is closed?
Which basic programming instruction is used to examine if a bit is closed?
Which basic programming instruction is used to turn a bit OFF or FALSE?
Which basic programming instruction is used to turn a bit OFF or FALSE?
Which basic programming instruction cannot be used on Input or Status bits?
Which basic programming instruction cannot be used on Input or Status bits?
What is the standard value for T R in required files?
What is the standard value for T R in required files?
In required files, how many word elements can be assigned by the user?
In required files, how many word elements can be assigned by the user?
