Practical Tips and Techniques
All programmable logic controllers (PLC) have the same numbering system at their core. This is the same with all computers as well. The status of any memory location can be either on or off. A one (1) will represent an on or “True” status and zero (0) will represent an off or “False” status. This … Read more
EasyPLC Software Suite is a complete PLC, HMI, and Machine Simulator Software package. This PLC learning package includes the following: Easy PLC – PLC Simulation that will allow programming in Ladder, Grafcet, Logic Blocks, or Script. HMI System – Easily create a visual human-machine interface (HMI) Machine Simulator – A virtual 3D world with real-time … Read more
PLC memory is very similar to personal computer memory. There is the operating system and firmware of the processor and connected modules. PLC programs and data that are used by the program are also stored in the memory. We will now look at the basic understanding of memory in the PLC. Looking at two examples … Read more
PLC outputs are the next component of our PLC block diagram. The PLC program will control the outputs of the PLC. Controlling outputs is one way to get the inputs to change. We will be looking at digital and analog outputs that can be wired to the programmable logic controller. PLC troubleshooting outputs will also … Read more
You can add a remote PLC slave rack of productivity 1000 series modules using a P1-RX. Up to 4 remote I/O base controllers can be added to the P1000 system. We will update our P1-540 CPU unit to a P1-550 CPU to take advantage of remote IO. A P1-RX remote IO-based controller will be added … Read more
Many questions come from serial communications using the Click PLC. Most of these questions deal with communication timing when using multiple send-and-receive instructions. We will show you how to deal with serial communication timing in the Click PLC. Receive and Send instructions will allow you to send and receive serial data to an external device. … Read more