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
Earth is a beta site.
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.
Posts from...
Thursday, September 4, 2008
If we increase time delay for shutdown to 30 secs, fuel changeover valve would change position & there would be no shut down BUT m/c would run on furnace oil without additive dosing for approx. 20 seconds...
New Replies:
By CSA on 4 September, 2008 - 1:26 am -
By CSA on 4 September, 2008 - 1:26 am -
It would seem that you have done your homework on the fuel transfer timing issue, and that a simple...
Modbus TCP/IP data concentrator. Need a device that can receive data from mutliple Modbus TCP/IP slaves, stores them and can act as a MModbus TCP/IP slave for the DCS controller.
New Replies:
By Syed Hussain on 4 September, 2008 - 1:23 am -
By Syed Hussain on 4 September, 2008 - 1:23 am -
Thanks to all the people who provided very valuable information. I have found the device that I was...
By CH on 4 September, 2008 - 1:14 am - Syed Hussain...
I'd have a look at Prosoft Technology's Prolinx line of products.
...
We are going to carry out wiring from live +24VDC system to our PLC system. We are being forced to carry out this operation with out shutdown.
New Replies:
By CSA on 4 September, 2008 - 1:22 am -
By CSA on 4 September, 2008 - 1:22 am -
Do you really need an IEC reference to explain the inherent dangers of working on a live system?...
By James Ingraham on 4 September, 2008 - 1:16 am - "wiring from live +24VDC system to our PLC system... exact references of IEC or other...
By bob peterson on 4 September, 2008 - 1:09 am - If you are only exposed to 24V it is not an issue. In the US, I think the standard is 60V. Even...
By Hugo on 4 September, 2008 - 12:36 am - Your message is difficult to understand. Are you in fact the technical expert entrusted by the...
By Roy Matson on 4 September, 2008 - 12:24 am - It's not unreasonable to expect you to work on live 24 VDC, electricians work on live wiring all...
Procedure to take project back-up and procedure to restore required for FISHER PROVOX and EMERSON RS-3 DCSs.
Can any one please help?
Can any one please help?
Require YSF6 630A Schematic of movable switch
I use TelepermXP DCS with om650 su system. How can I save process information in CD or copy MOD data on CD and use it?
Requesting member feedback for the replacement selection of an existing petrochemical control system "DCS".
New Replies:
By dsiler on 4 September, 2008 - 1:13 am -
By dsiler on 4 September, 2008 - 1:13 am -
I have been programming PLCs & DCS systems for 15 years. Over that time I have worked with a...
By Y.K.JARIWALA on 4 September, 2008 - 12:30 am - Would you give us break-up of IO counts
a] Process IO
AI/AO
DI/DO
b] MCC DI/DO
C]...
UnityPro XL is running slow, V3.1-SP1.
New Replies:
By Anonymous on 4 September, 2008 - 1:11 am -
By Anonymous on 4 September, 2008 - 1:11 am -
What is your computer?
Maybe your computer is slow....
Toggling a DIO when an alarm condition is set with out the interaction of the master.
Creating an enmurated state and adding to a user defined display
New Replies:
By CSA on 4 September, 2008 - 12:51 am -
By CSA on 4 September, 2008 - 12:51 am -
Well, this is an interesting case. I'm going to have to take some time and think through how this...
How does Derivative Control work?!
New Replies:
By Peter Nachtwey on 4 September, 2008 - 12:48 am -
By Peter Nachtwey on 4 September, 2008 - 12:48 am -
>As I understand it, Derivative action
>reduces overshoot <
Yes, in theory the...
we experience the following alarm diagostic alarm on VPRO Z: The solenoid voltage 06 mismatch request state.
New Replies:
By CSA on 4 September, 2008 - 12:47 am -
By CSA on 4 September, 2008 - 12:47 am -
I'm extremely confused now. Because the original post said this was a Mark VI SIMPLEX application,...
Does anyone know where on the web I can find resources for learning Intools?
New Replies:
By Sam on 4 September, 2008 - 12:45 am -
By Sam on 4 September, 2008 - 12:45 am -
OK or good living...
I'm making good and don't know why you said OK....
In 210 MW turbogenerator in 6th no. bearing (horizontal) there is an increase in vibration with an increase in VAR required by the generator.
New Replies:
By CSA on 4 September, 2008 - 12:36 am -
By CSA on 4 September, 2008 - 12:36 am -
There are several possibilities. Increased current flow means increased heating of the generator...
I have some questions about protection of blocks
in SIMATIC Manager in step 7
in SIMATIC Manager in step 7
New Replies:
By Barry P Fowler on 4 September, 2008 - 12:33 am -
By Barry P Fowler on 4 September, 2008 - 12:33 am -
Hmmm, locked blocks! You buy a machine, go in to work on a machine or inherit a machine with an S7...
What's the best approach to network security in a control system environment?
New Replies:
By Michael Griffin on 4 September, 2008 - 12:31 am -
By Michael Griffin on 4 September, 2008 - 12:31 am -
If he has physical access to the system, he can do pretty much anything he wants. You can put any...
<I> Dos screen freezes frequently
New Replies:
By CSA on 4 September, 2008 - 12:31 am -
By CSA on 4 September, 2008 - 12:31 am -
This question has been asked here and answered before. IDOS was written for specific BIOSs; it does...
How to replace a failed hard disk in a running Mark V unit?
The GTs in the plant I work at fails frequently on vibration, which leads to shear pin failure and high temp. on both the driven and non-driven end of the turbine.
Delay program will be in Assembly Language. This is to be used for PIC16F84A project (microcontroller).
During parallel operation, trip of another GT, enabled the load pick up in GT with mark V. Soon this GT start rejecting the load with speed dropping.
New Replies:
By Iqbal on 4 September, 2008 - 12:20 am -
By Iqbal on 4 September, 2008 - 12:20 am -
Thanks CSA. I will post the outcome after our investigation....
Circuit for humidity sensor for detection of the dryness of rice grains.
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 © 1999-2008 Control Technology Corporation. All rights reserved.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!