Author Topic: What does "i" and "r" mean  (Read 13051 times)

seitech

  • Newbie
  • Posts: 7
    • View Profile
What does "i" and "r" mean
« on: September 30, 2003, 07:33:08 PM »
I couldn't find in manual what the little i and r meant in the ladder diagrams (i.e. next to start, relay symbols, etc.)  I'm new to all this so need to ask this simple question.

Thanks
« Last Edit: December 31, 1969, 04:00:00 PM by 1076562000 »

support

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 3174
    • View Profile
    • Internet Programmable PLCs
Re: What does "i" and "r" mean
« Reply #1 on: October 01, 2003, 11:59:47 AM »
A little "i" means that the contact is an input, "o" means output, "r" means internal relay, "t" means timer and "c" means counter.

You can press the <F3> key to toggle whether to display this little "i","r" etc.
« Last Edit: December 31, 1969, 04:00:00 PM by 1076562000 »
Email: support@triplc.com
Tel: 1-877-TRI-PLCS

seitech

  • Newbie
  • Posts: 7
    • View Profile
Re: What does "i" and "r" mean
« Reply #2 on: October 01, 2003, 04:38:45 PM »
Thanks, I appreciate the info.
« Last Edit: December 31, 1969, 04:00:00 PM by 1076562000 »