Table of Contents 

Interrupts 3

Immediate I/O 8

Subroutines 11

For/Next Loops 15

Jumps 19

Sequencers 22

Indirect Addressing 27

Analog Signals 34

Analog Inputs 44

Analog Outputs 49

Encoders 53

Incremental Encoders 56

Absolute Encoders 61

Gray Code 65

PID 71

RS-232 Communications (Hardware) 78

RS-232 Communications (Software) 83

Using RS-232 With Ladder Logic 89

You CAN get the job you want and start earning ‘plc programmer money’.

Learn Intermediate level PLC Programming… step by step.

        Plain English text… no confusing tech talk.

        Short and to the point. Read through it quickly and easily.

        18 quizzes (with answers!!) to check your progress.

You WILL learn:

Interrupts. Recognize when you actually ‘need’ to use them.

Immediate I/O. Do today’s plcs actually need this function?

How Subroutines can be a plc programming consultants dream come true…

Caution: A loop in your plc program can bring down the entire system. Avoid this potential nightmare and service call.

How to use one single plc program on different machines. It really is possible!

Sequencers are simple once you understand them. Honestly

Indirect addressing can save tons of programming time.

How to use analog inputs and outputs to talk to sensors and measurement tools.

Figure out where a product is at all times on your assembly line!

PID loops can be easy to use… without math!

How your plc can send/receive data to/from your computer

… and more!!

This book picks up where our beginners book stopped. It is intended for an intermediate level programmer and ideally one who has read our beginners book.

What stops you from learning?

Learn today because tomorrow never comes.

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