PLC Program for Cylinder Extension

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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?

15K words

8K words

10K words

12K words (correct)

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?

File 0 Signup and view all the answers

What type of numeric information is stored in the Data Files of the SLC 500?

Integer numeric information Signup and view all the answers

What is the main function of the Power Supply in a PLC?

Converts AC line voltage to suitable DC levels for operation of the controller Signup and view all the answers

Which component of a PLC controls the entire PLC and is immune from electrical noise?

Processor Signup and view all the answers

In a PLC, where is the user program entered?

USER Program area of the memory Signup and view all the answers

What type of programming devices is most commonly used with a PLC?

Personal computer (PC) Signup and view all the answers

Which component of a PLC allows the PLC to affect the outside world by controlling output devices?

Output Modules Signup and view all the answers

What year did GM write the design criteria for a computer-based 'relay replacer'?

1968 Signup and view all the answers

Why were relay control circuits deemed too large and unwieldy?

They became too complex with automated systems Signup and view all the answers

What is the primary purpose of a PLC (Programmable Logic Controller) in machine control?

To control and monitor industrial processes Signup and view all the answers

What led to the development of PLCs as a replacement for relay control circuits?

The increasing complexity of automated systems Signup and view all the answers

What is the most widely used industrial process control technology today?

Programmable Logic Controllers (PLCs) Signup and view all the answers

What is the purpose of ladder logic in a PLC program?

All of the above Signup and view all the answers

Which language uses a symbolic set of instructions to create the controller program in PLC?

Ladder logic Signup and view all the answers

What is the function of the Examine If Closed (XIC) instruction in a ladder program?

To determine if a bit is On Signup and view all the answers

What does the Examine If Open (XIO) instruction in a ladder program look and operate like?

A normally closed relay contact Signup and view all the answers

Which of the following symbols are the basic symbols of the logic ladder diagram instruction set?

Normally open contacts Signup and view all the answers

What is the primary purpose of programming a PLC?

To control outputs based on inputs Signup and view all the answers

What are the two main types of symbols used in programming a PLC?

Contacts and Coils Signup and view all the answers

How does a PLC work in terms of its scan cycle?

By checking input status and updating counter values Signup and view all the answers

What do contacts describe in a control system?

The information available to the control system Signup and view all the answers

In ladder logic, what happens if all input bits on a rung are 'True'?

Output will be 'ON' Signup and view all the answers

What is the purpose of a one-shot [timed pulse] in SLC 500 programming?

To eliminate conflicts between control signals Signup and view all the answers

In SLC 500 programming, what is the function of a latching circuit?

To eliminate conflicts between control signals Signup and view all the answers

Which type of circuitry could be used to eliminate conflicts between control signals in SLC 500 programming?

One-shot [timed pulse] Signup and view all the answers

In SLC 500 programming, what is the main advantage of using an additive sequencer?

Solving conflicts between control signals quickly Signup and view all the answers

What is the purpose of using consecutive memory bits for steps in SLC 500 programming?

To solve conflicts between control signals quickly Signup and view all the answers

What is the standard value for T R in Integer Files?

6 Signup and view all the answers

In Integer Files, how many word elements can be assigned by the user?

Three Signup and view all the answers

What is the range of files that can be assigned by the user in Integer Files?

9-255 Signup and view all the answers

Which basic programming instruction is used to examine if a bit is closed?

Examine If Closed Signup and view all the answers

Which basic programming instruction is used to turn a bit OFF or FALSE?

RESET a bit OFF Signup and view all the answers

Which basic programming instruction cannot be used on Input or Status bits?

OTE, OTL, OTU Signup and view all the answers

What is the standard value for T R in required files?

7 Signup and view all the answers

In required files, how many word elements can be assigned by the user?