You are not registered yet. Please click here to register!

plc storereviewsdownloads
This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
Try our online PLC Simulator- FREE.  Click here now to try it.

New Here? Please read this important info!!!

Go Back - Interactive Q & A > - Interactive Q & A > LIVE PLC Questions And Answers

Thread Tools Display Modes
Old May 4th, 2021, 11:14 AM   #1
United Kingdom

Manglemender is offline
Join Date: Jul 2007
Location: Lancashire
Posts: 1,198
Rockwell PLC socket comms


I have a machine in Missouri where the PLC communicates with two Intellisys Throttle valves via TCP socket comms on port 503. It's a fairly simple ascii text based interface where the PLC sends a command and the valve responds. Twice recently, the comms has stopped working and will only re-establish by when the CPU is switched to stop and then back to run.

There are also TCP comms to a pulse generator and they are completely bomb proof.

Has anyone else seen this problem/know a solution?


CPU = L81
Tools = Studio5000 V30
  Reply With Quote
Old May 5th, 2021, 12:05 AM   #2
Matthew Modar
Lifetime Supporting Member
United States

Matthew Modar is offline
Matthew Modar's Avatar
Join Date: Feb 2008
Location: Tulsa, OK
Posts: 23
You may need to periodically delete all sockets. Maybe some are getting created and never properly removed.
  Reply With Quote
Jump to Live PLC Question and Answer Forum


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Topics
Thread Thread Starter Forum Replies Last Post
Open socket comms to from PLC taward31 LIVE PLC Questions And Answers 10 June 26th, 2019 01:04 PM
Cheap Rockwell PLC for learning? Ozpeter LIVE PLC Questions And Answers 8 August 3rd, 2018 07:02 AM
[Rockwell] PLC to PLC comms using Generic Ethernet Module Powerchamp LIVE PLC Questions And Answers 9 July 5th, 2018 04:22 PM
PLC 5 Comms Help The Plc Kid LIVE PLC Questions And Answers 4 March 16th, 2015 12:19 PM

All times are GMT -4. The time now is 08:50 AM.