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New PLC Student requesting professional insight

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peavey_wolfgang_2000

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Can anyonw with PLC programming experience help me with a few minor questions...First of all I am studying at george brown Tech College, and Some questions that I need answered or insight on are;

#1. Allen bradley Processors do not have which communciation connection? my choice s are D Shell, 9-Pin, 9-Bit, Data Highway Plus, Programming Terminal.

My inital feeling is 9-bit, I think they are 16-Bit?, and I do believe they have all the rest!!

#2.The output interface
(a) Converts the CPU to signal from a process
(b) Allows the program in memory to be output in the CPU
(c) Connects the CPU to the process and produces the control signal
(d) connects to perpheral devices such as printers
(e) provides data for the cpu to analyze

Any help would be great and a direct e-mail if someone would like to help a new student out.

by the way I am leaning towards C for my answer but I want to make sure!!!!
 

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