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- 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
If you pick up a starving dog and make him prosperous, he will not bite
you. This is the principal difference between a dog and a man.
-- Mark Twain
you. This is the principal difference between a dog and a man.
-- Mark Twain
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What are the difference between PLC and motion controllers
New Replies:
This is like opening a can of worms. My opinion is those who were historically Motion Control...
By James Ingraham on 21 September, 2009 - 10:37 am -
> What all are the main difference between PLC and motion controllers? <
Well, the line is...
from the Vendors coin the phrase proprietary open department...
How important is multivendor interoperability to you?
Industry open standards versus vendor proprietary open. As the President of the OPC Foundation I'm trying to assess the importance of secure reliable interoperability, and the value proposition of interoperability from the end-user perspective.
New Replies:
I agree with Mr Griffin on this topic.
OPC is by no means an open standard.
OPC has failed by...
By M Griffin on 21 September, 2009 - 1:24 am -
In reply to Ken Crater:
The original OMAC documents from 10 years ago are still on their web...
By M Griffin on 20 September, 2009 - 3:18 pm -
In reply to Jeremy Pollard: I think there were several problems with IEC-61131. First, vendors...
Jeremy mentioned...
>Ken Crater tried this with an independent lab and there was no interest...
By Jeremy Pollard on 19 September, 2009 - 9:35 pm -
Hi Tom,
As the former Managing Director of PLCopen (IEC-61131), I have fought for general...
By M Griffin on 17 September, 2009 - 5:11 pm -
In reply to Dan Muller: You said "Remember that Compuserve et al used closed standards in an...
By Dan Muller on 17 September, 2009 - 11:32 am -
M Griffin's example is correct, of course, but the question is how does his analogy apply to the...
By William Sturm on 16 September, 2009 - 5:08 pm -
I am in complete agreement with Mr. Griffin on this one. I couldn't have said it better myself.
...
By curt wuollet on 16 September, 2009 - 4:55 pm -
Hi Michael
Yes, exactly.
I define the problem as convincing big automation that growth will...
By M Griffin on 16 September, 2009 - 12:11 pm -
What's wrong with simply having open protocols? I don't have anything against the OPC Foundation,...
communications protocol for modbus ASCII.
New Replies:
By M Griffin on 16 September, 2009 - 8:48 am -
"http://www.modbus.org/tech.php" The link to the download area is at the top of the page....
Hi, I assume that you are writing the software in a PLC, only ask as most PLC's have modbus...
Hi Lewis,
www.modbus.org have all the info. I have in front of me 'Modbus over Serial Line...
indirect addressing which includes both analog as well as digital tags
New Replies:
By Danny on 14 September, 2009 - 5:19 pm -
Yes it is very possible and very easy to do. Perhaps you could tell me a little more about what...
from the Automation List department...
Profibus communication problem between Beckhoff IPC and Siemens PLC
An IPC connected to a Siemens PLC as a slave module. When I restart the PLC while IPC running then PLC can't find the IPC hardware on the Profibus network.
New Replies:
By Jeff Chang on 13 September, 2009 - 1:59 am -
Hi everybody,
I use IPC with Beckhoff Profibus cards and TwinCAT I/O software for communication...
Any guess as to how many automation professionals there are in the world today?
New Replies:
By M Griffin on 12 September, 2009 - 6:02 pm -
What about maintenance personnel? What about production engineers? What about people who integrate...
ControlWiki.com is launched as an information resource for automation professionals.
New Replies:
> I think a good way for people to contribute to this is if they think they have written a...
By M Griffin on 10 September, 2009 - 1:32 pm -
It's good to hear that the ControlWiki is available. I think that we see a lot of repeats of the...
I know everyone has their personal preferences, but I think it would be more interesting to discover which software is the worst...
New Replies:
By Harry on 7 September, 2009 - 11:00 am -
I have over 8 years experience with PARAGON. I am specialized in Fermentation and Bioreactor...
Is Modicom 140NOE211 Quantum Ethernet TCP/IP Module i full duplex or half duplex
New Replies:
By chud on 7 September, 2009 - 10:49 am -
I'm speaking under correction but I'm sure it is both. It automatically detects half or full...
Are there software applications on the market that can compile and test Honeywell CL (control language) programs.
New Replies:
By SD on 6 September, 2009 - 2:21 am -
> Take a look at CL Check at http://www.sandiforduk.com <
This link is not available. Can...
We are facing problem while downloading tag number details on line in Experion PKS DCS.
New Replies:
By Peter on 4 September, 2009 - 4:54 am -
I just wanted to add my 10 cents worth on this issue. First of all your server really needs to be...
Industrial Automation Company Survey for Academic project
6ES5 734-1BD20 works when my notebook runs on battery. It does not work when I plug in the power to my notebook. In fact it burns out the MAX232 chip in a minute.
Relay : 7VE63
Make : SIEMENS
Project:Electrical control system for BPCL/Kochi Refinery.
Make : SIEMENS
Project:Electrical control system for BPCL/Kochi Refinery.
Difference between PLC & DCS
New Replies:
By anynomous on 24 August, 2009 - 2:02 am -
Taking this discussion in slightly lighter mood the difference between DCS & PLC is , the same...
By P Khurana on 21 August, 2009 - 10:44 am -
I seriously think that there is not much difference left between the SCADA and DCS now a days. But...
I want to procure IS passive barriers for analog inputs like pressure, temp and flow transmitters. Flow transmitters are basically vortex type transmitters with local display cum tantalizer in a separate enclosure.
what's the difference?
New Replies:
By A.ZUBAIDY on 17 August, 2009 - 8:20 am -
Hi all
I have system certifcate as SIL2 (Yokogawa DCS). I want to install the sensor is SIL 3...
Are there reliable alternatives available to measuring slurry density except for the Gamma radiation method?
New Replies:
By Roy Matson on 11 August, 2009 - 7:41 pm -
1.00 - 1.50 is easily achievable with a differential pressure transmitter using diaphragm seals,...
By Suvit Lee on 11 August, 2009 - 4:37 pm -
Craig, I am interested in this. Give me more details.
suvit.lee [at] jameshardie.com
...
Pulse output from flow meter given to plc DI LED indication always glowing.what is the reason
New Replies:
Hi Gents,
Thank you all for yur replies, just exploring this site don't know whether this goes...
By david mertens on 6 August, 2009 - 11:56 pm -
Hi,
Check the frequency that is generated by the flow meter. most flow meters can easily have an...
from the A presentation of the title. department...
Ship's Alarm Control and Monitoring System (ACMS) for commercial vesselsResources for Ship's Alarm Control and Monitoring System (ACMS)
New Replies:
what kind of smart industrial devices are you using like PLC and other hardware....
ISA is presenting a conference for industry sales and marketing professionals.
What type of cable can be used for Gas Detectors in Zone 0.
New Replies:
By arun on 3 August, 2009 - 2:03 am -
Fire resistant cables are intended for use in inter panel connections of electrical, electronics...
Need help with some numbers about boiler drum level control
New Replies:
By Chandrakant Prajapati on 2 August, 2009 - 1:15 pm -
Dear Bruce,
In the Equation
FIC0101_SP = FT0112_OP + LIC0105_OP - 50 %.
You have asked...
Linux increasingly adopted by Fortune 500 companies
I'd like to create system which can approximate number of available space in the parking for people from the outside of the company :-).
New Replies:
Check the web...there are commercial off the self products that already perform this function....
I've just automated a 50 foot long rotary kiln for the drying of
coal. Now I am deeply researching PID loops. I need to adjust a
gas valve to maintain a set point temperature coming out of the
dryer...
coal. Now I am deeply researching PID loops. I need to adjust a
gas valve to maintain a set point temperature coming out of the
dryer...
New Replies:
By tleeth on 27 July, 2009 - 1:55 pm -
> I think you can use PID controller with autotuning function. In this method your controller...
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