Communication methods

[nettogrisen]

Hi, I troll these forums almost every day trying to pick stuff up about PLC's. I'm an electrician with great interest in PLC's and hope of being a full time PLC programmer some day.
I've written a few programs so far eg. wash robots for boats and factories, pumpcontrol for a drydock, alarmsystems, aux. engine control on boats and stuff like that.
Up untill now I have only worked with Omron and Mitsubishi - mostly Omron, but we are switching to AB in wich I'm attending a course in Sweden soon. I already have all the software installed on my PC and am trying stuff out.

Anyways... My question is:

I often read about all the different types of communication that is involved with PLC's eg. RS232, RS485, DH+ and so on...
I have already found the documentation on this site about RS232 in the "Learn PLC's" section but i want more!!!
So can anybody please direct me to some literature about the different comunication methods, a site or a pdf or even a previous post (I couldn't find any that I thought was relevant, I probably don't know what to look for).

Any help will be appreciated

Jesper

 

[504bloke]

DH+

DH485

Ab's Overview

Profibus ( Siemens and Others )

Devicenet

ASi

 

[rPraveenkum]

Controlnet

Ethernet

Devicenet

DH+

RIO

DH485

 

[nettogrisen]

Thanks alot guys, this is exactly what i was looking for

 

[s7xp.com]

I miss the problably most supported one: MODBUS
Not the fasted but simple and usable for all type of comms.

 

[504bloke]

I miss the problably most supported one: MODBUS
Not the fasted but simple and usable for all type of comms.

Modbus here

 

[nettogrisen]

Sweet, thanks

 

[mordred]

here is this sites previous articles on the subject.

 

[nettogrisen]

Nice, alot of bedtime reading, thanks

 

[mordred]

here is an article on CC-link used with newer Mitsibushi controllers
I was going to add a good article on guidelines for profibus however its too large to upload