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Archive for the ‘PLC’ Category

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Top 10 PLC Manufacturers

Below, we will list the top PLC manufacturers that are leading the PLC market at the moment. This should give a lot of insight to what are the most important trends and what is the actual path that they are building.

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SLC 500 Troubleshooting: Appendix

Downloading SLC 500 User program: To download user program to an SLC 500 controller, the user must open the user program that is intended to be downloaded to the controller. Proceed with the configuration of RSLinx and define the driver to be used to communicate with the controller.   1. Configure RSLinx: Launch RSLinx. Click […]

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SLC 500 Processor Selection Guide

I. Introduction Central Processing Units (CPU) or processors are considered the most important and expensive component of a Programmable Logic Controller (PLC) assembly. Processors not only execute the downloaded user program but also manages communication between devices. It may also be operated as a stand-alone device for the purpose of testing, familiarization and learning. II. […]

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Troubleshooting Tutorial: Common SLC 500 Faults – Part 1

I. Introduction Programmable Logic Controllers (PLC) such as Allen-Bradley’s SLC 500 Modular or Fixed style hardware are designed with capability of self-diagnostics. With Self-diagnostics, the controller is able to detect the operational status of every member module and report this externally through varying behavior of built-in LED indicators and internally via the diagnostic buffer. II. […]

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PLC vs DCS: How to Choose?

This might be one of the most common questions between automation engineers and technicians that are starting their way into the industry: “What is the best option for my project? A PLC or a DCS?” Well, as with everything else in the field of automation, it depends. But in the case of PLCs and DCSs, […]

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