Although there are quite a few Electrical Automaton brands and product We will discuss top 3 PLC manufacturers from around the world on this post.

As technicians, engineers and programmers, we have several choices when it comes to choosing a brand of PLC. depending on where you work, you may have to familiarize yourself with many different brands. Some places use more than one manufacturer in a single facility.

Probably the biggest name out there in automation and PLC in the world is Siemens. Siemens offers their Simatic line of controllers. Giving users of all performance needs an option. Simatic stands for Siemens automatic. The name itself should be an indicator of its role in manufacturing lines. Simatic controllers have some pretty great standard features, including Ethernet, TCP, IP, easy connections and Profinet as IO Communications. Profibus is included or easily added with a module. When it comes to the Simatic software, Siemens claims that they offer maximum efficiency throughout the automation process. Their Simatic S7 classic and TIA version lets users configure, program, test and diagnose the PLC.

One of the largest PLC manufacturers used in the United States is Rockwell Automation and their Allan Bradley line of controllers. Alan Bradley offers controllers for all different sized projects, their large control systems are being referred to as programable Automation Controllers, or PAC. These are made with a complete automated project in mind, and the network of their large controllers can essentially run an entire plant with proper design and planning. This is accomplished with their ControlLogix controllers and Guard PLC for safety systems. Alan Bradley also offers systems for smaller applications, most popular are Micro Logics, SLC 500 and CompactLogix systems. All of these are still extremely powerful for the needs of almost any industry, every manufacturing facility that I have ever worked in had several of each of these controllers installed in their equipment. The programing for Alan Bradley comptrollers comes in the form of RSLogix 5000 and RSLogix 500, The newer version is studio 5000.

Another PLC manufacturer is ABB. They offers there a 500 line up that caters from small to large, high end applications. One aspect of the AC 500 line that sets it apart from some of the other brands is their concept of any module in any CPU. This means that no matter what CPU you have for your AC 500 PLC, you can use any ABB AC 500 module. This makes finding replacement parts easy and affordable.

One common factor between all three manufacturers that we have discussed is the option of modular devices, all of these brands let the customer set up their system as they see fit. And add as many input cards or output cards or a combination of cards as you need for your application. They also offer fixed units in their smaller applications. This means that the fixed p.l.c. may have a set number of inputs and outputs built into the unit. These are usually less expensive and great for small applications.

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	Siemens	AB	ABB	Schneider	Beckhoff	Omron
PLC	S7-200	SLC500	AC-500	M22	P20	CS
	S7-300	Micrologix 800		M24	P30	CJ
	S7-400	CompactLogix		M25	P40	CP
	S7-1200	ControlLogix			P50	CPM
	S7-1500				…
Touchscreens	WinCC Basic Panel	PanelView 800 series	CP600	GTU	CP62xx	NYP
	WinCC Comfort Panel	PanelView Plus 7 Standard		GTO	CPxxxx	NA series
		PanelView Plus 7 Performance		STU		NS15/NS12/NS10/NS8
				STO		NS5
						NS5 Handheld
						NB series
SCADA	WinCC Advanced	FactoryTalk View ME	SCADAvantage	Intouch ME	TwinCAT	InduSoft (Partnership)
	WinCC Professional	FactoryTalk View SE Station		Wonderware
	WinCC OA	FactoryTalk View SE Site Edition
Drive	V20	Powerflex 4M		Altivar
	G (Series)	Powerflex 52x		Altivar
	S (Series)	Powerflex 75x
Servo	V70	Kinetix		Lexium
	V90
	S210
	S120

https://docs.google.com/spreadsheets/d/e/2PACX-1vQak7D6xKfNQJOrROoJIkpOk_JueSwIQMgmxwTY13Egge8BWQXvCr7tXO1a0ousS29IHxK6D_42bJqI/pubhtml