K
Hi,
We are in the process of establishing 10 experimental rigs for teachingpurposes. Each of these rigs will be multipurpose and will be completely automated. We are looking at the possibility of using one data acquisition / control system for each rig. Although in universities people generally use PC based cards, I want to explore the possibility of using PLCs. I would like to identify the best of these so that I can buy 10 units. One of the important requirements of this control system is that I should be able to drive it from linux. Reliability and the ease of use are more important than the cost. Finally, if successful, this experiment may be repeated in other colleges/universities.
I want to know if anyone can answer the following questions:
1. When does one use a PLC as opposed to PC based cards?
2. What are the shortcomings of a PLC?
3. Which PLC meets the requirement that I should be able to drive it from linux - in other words, which PLC already has linux based software written for it?
4. What will be the cost of a PLC if I am looking at something like 24 analog inputs, 24 digital I/O and 6 analog outputs?
Regards.
Kannan Moudgalya
_______________________________________________
LinuxPLC mailing list
[email protected]
http://linuxplc.org/mailman/listinfo/linuxplc
We are in the process of establishing 10 experimental rigs for teachingpurposes. Each of these rigs will be multipurpose and will be completely automated. We are looking at the possibility of using one data acquisition / control system for each rig. Although in universities people generally use PC based cards, I want to explore the possibility of using PLCs. I would like to identify the best of these so that I can buy 10 units. One of the important requirements of this control system is that I should be able to drive it from linux. Reliability and the ease of use are more important than the cost. Finally, if successful, this experiment may be repeated in other colleges/universities.
I want to know if anyone can answer the following questions:
1. When does one use a PLC as opposed to PC based cards?
2. What are the shortcomings of a PLC?
3. Which PLC meets the requirement that I should be able to drive it from linux - in other words, which PLC already has linux based software written for it?
4. What will be the cost of a PLC if I am looking at something like 24 analog inputs, 24 digital I/O and 6 analog outputs?
Regards.
Kannan Moudgalya
_______________________________________________
LinuxPLC mailing list
[email protected]
http://linuxplc.org/mailman/listinfo/linuxplc