How to Troubleshoot a PLC – Ladder Logic

We will look at how to troubleshoot a plc racing condition. Two examples are explained in racing conditions in the PLC. The PLC will update only at the end of the program logic. Items set will not happen until the I/O is refreshed. How to trigger events when you want them is discussed. Your control … Read more

The Secret of Using Counters – PLC Programming

We will now look at the secret of using counters in the PLC. (Secret Using Counters) Counters are used in the majority of PLC programs. This is especially true if part of your SCADA system. Counters like the animated picture above count things. In this situation, we count the number of turns the little guy … Read more

The Secret of Using Timers – PLC Programming

We will now look at the secret of using timers in the PLC. Timers are used in the majority of PLC programs. There are also a wide variety of off-the-shelf industrial timers that you can use. The implementation of timers can be vast; however, it all starts with a TIMING CHART. Timing Chart – Secret … Read more

How to make a Start Stop Jog circuit in a PLC

Looking at a stop-start jog circuit in the PLC will help us understand the differences in hard-wiring the circuit and programming. Basic Start Stop Circuit Let’s start with the primary start-stop circuit. Here is what it looks like hard-wired. (Physical switches wired to outputs devices, such as motor contactors and relays.) When the start pushbutton … Read more

Misc Tips

Video Library (Humix) In Process… Solo SL-SOFT Installation – Temperature Controller Configuration and Monitoring Software – Video Solo Process Temperature Controller – Video (Older Software Version) Analog Input to a Solo Process Temperature Controller Video Implementing Solo Process Temperature Controller AdvancedHMI to Solo Temperature Controller – Video BRX Do-More PLC Modbus RTU to Solo Controller – Video Productivity 1000 … Read more

PLC Basics – Programmable Logic Controller

plc basics programmable logic controller

Learning programmable logic controllers (PLC) include understanding of the basic components, language, numbering systems, program development. PLC Basics will help in your learning of the programmable logic controller. If this is your very first time programming a PLC, we suggest you check out our beginner’s guide to programmable logic controllers. Hardware and Software – PLC … Read more