Welcome to Control.com, the global online community of automation professionals.
Control.com - Nerds in Control
Member Login
Search
Jump to a Date
Sponsored Communities
Cool stuff
Neat Stuff
Visit our shop for nerds in control lifestyle products.
Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
The cost of living hasn't affected its popularity.
RSS Feed
Use this link to get an RSS feed of the Control.com article flow, for private, non-commercial use only:www.control.com/rss/
To get a personalized feed, become a member at no cost.
from the Forum department...
Altus NOC problems
Greetings.
I am using an Emerson meter with an attached Altus net oil computer (NOC) to test the output of oil wells. I have six sites that will be running identical PLC code and configuration. Four of these sites are currently operational. For the most part, 75% of the time, the tests run as they should and the data retrieved is within a norm for that well. The other 25% of the time the data from a previous test remains in the registers. This problem starts without provocation and clears itself without operator intervention. Also, the data that the NOC displays (read by the PLC using MODBUS) for a bad test is not the data recorded in the NOC history registers. Any ideas?
I am using an Emerson meter with an attached Altus net oil computer (NOC) to test the output of oil wells. I have six sites that will be running identical PLC code and configuration. Four of these sites are currently operational. For the most part, 75% of the time, the tests run as they should and the data retrieved is within a norm for that well. The other 25% of the time the data from a previous test remains in the registers. This problem starts without provocation and clears itself without operator intervention. Also, the data that the NOC displays (read by the PLC using MODBUS) for a bad test is not the data recorded in the NOC history registers. Any ideas?
From Control Engineering magazine...
Related articles from Control
Engineering magazine
- Automation pioneer Nels Tyring dies at 77, coined term: control system integrator
- Ethernet Direct offers industrial IP66 cameras with Power over Ethernet
- Budget-friendly temperature control unit
- Upgrading control for better polymer performance
- Software pinpoints process interactions
- BP selects SIS for UK deployment
- Here's what you need to know about controls, says Automation Federation, U.S. government
- Electrical product safety: Are testing labs needed or is a supplier's declaration enough?
Above articles copyright 2009 Reed Business Information.
Subject to its Terms of Use.
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2009 Control Technology Corporation. All rights reserved.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!