What are the famous types of PLC?

define types!!if you mean the brands,then you have Siemens ,Hitachi,Shneider,Mitsubishi,Allen bradley..etcif the word "types " is based on programming then we have ladder diagram,SFC,HMI programming and even traditional programming 

if we are talking about arcitecture ,there are compact,modular and mount rack PLCs

Different Types Include Ladder Logic, Traditional Programming, State Logic, and Remote Terminal Unit. Different Brand name of PLC are ABB, Siemens, Omron, Mitsubishi etc

The most famous brands are: Siemens, Allen Bradley, Schneider, ABB, Mitsubishi and Fanuc.

There are some rare and unkonwn PLC brands like: Omron, Panasonic, B&R 

Siemens, Allen Bradley, Mitsubishi, Omron.. 

the most famous with respect to me is (Siemens).

Hitachi,Shneider,Mitsubishi,Allen bradley

Alan Bradley with diffrent type

SIEMENS  , OMRON  , DELTA  , LS , SCHNEIDER , ALLEN BRADELY , ABB , PANASONIC , MISUBISHI

I have come across following types

Allen Bradley,

Europe

Siemens

Mitsubishi

AB

Omron

Rockwell

Modicon

SIEMENS

ALLEN BRADELLY

Omron

Mitsubishi, 

ABB

FOR PROCESS AUTOMATION THE LEADING ONES ARE SIEMENS,ALLEN BRADLEY, ABB,HONEYWELL,EMERSON ETC.. IF ITS FOR MACHINE AUTOMATION THEN ITS MITSUBISHI,DELTA, FANUC ETC..

Siemens in different model