Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Contorl panel x distance

Contorl panel x distance

Contorl panel x distance

I have one big skid (in one oil rig) with a lot of instruments (level and pressure transmitters, control valves, on-off valves, etc). I was planning to install one control panel in this skid and rout all instrument cables to this panel, and use optical fiber to connect this remote panel with the PLC located in the Master Control Room. Now I received the information that my panel cannot be installed in this skid/module. It shall be installed in another module, in a electr./instrument. panel room located around 75 meters far from my skid. My doubt is, what is the maximum distance that my instrument cable (I have analog and digital signals) can cover without problems? My concerned is the distance.
Replies continue below

Recommended for you

RE: Contorl panel x distance

You will need to calculate the voltage drop on the cables to analyze how it affects your system.

David Baird

Sr Controls Designer
EET degree.
Journeyman Electrician.

RE: Contorl panel x distance

I don't worry much about 4-20 mA signals up to about one mile.

RE: Contorl panel x distance

Distance is usually not the issue; noise and power usually are.  Your signals and power need to be properly driven, distributed, routed, shielded, etc.  But, you knew that...


FAQ731-376: Eng-Tips.com Forum Policies

RE: Contorl panel x distance

leomiranda;  Please do not cross post.  It's confusing to members.  Most check all related fora anyway.

Keith Cress
kcress - http://www.flaminsystems.com

RE: Contorl panel x distance

itsmoked, it was my mistake! I discovered that I create this topic in a wrong Forum, so I did the same question in another forum, but I forgot to delete this one.
 But thank you for all answers!!!

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close