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
Twitter Feed
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
Barth's Distinction:
There are two types of people: those who divide people into two
types, and those who don't.
There are two types of people: those who divide people into two
types, and those who don't.
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.
provide input to a Data Acquisition Unit (DA100) requires 5VDC input with 10mA transistor output
New Replies:
By Robert Scott on 20 November, 2009 - 8:36 am -
You are not doing any better at describing what you want. You say that the 10ma. output needs to...
By Hattersuk on 20 November, 2009 - 6:51 am -
Thank you.
I don't think i have described this very well. I need to use a 10mA output that i...
By Carl on 19 November, 2009 - 1:10 pm -
Ohms law says current through a resistor creates a voltage drop.
R = E/I
R = 5V/0.010A
R = 500...
Machine which we are going to do with Rotart shear cutter for cutting metal sheets from 800 mm to 5000 mm
New Replies:
I agree that the rotary cutter should not have to stop between cuts. With a decent controller you...
your customer is correct you should be able to develop a profile for constant motion... you...
CANOpen technologies
New Replies:
By Joe on 15 November, 2009 - 4:48 pm -
Have a look at http://www.canopen.nu.
...
>HBC-radiomatic has a wide range of radio remote controls with CANOpen interface.
...
Beckhoff has wide range products for many popular field buses including of course CANopen one. ...
By Heinz-Jürgen Oertel on 3 September, 2009 - 9:54 am -
> I would assume that drivers normally come with the interface boards. <
Besides some...
By Heinz on 3 September, 2009 - 9:50 am -
Another source is :
http://www.can-wiki.info
at least for boards and drivers and higher layer...
By M Griffin on 31 August, 2009 - 10:33 pm -
The web site for the trade group is: "http://www.can-cia.org/". They have a product guide...
Is there a way to call or set variables in the PID_ISA block from cimplicity like the Integral or Proportion ?
New Replies:
Yes, you can access the registers of the PID_ISA from CIMPLICITY to tune the block. You'll need to...
Need a PLC that runs on 12 volts and supports IEC 1131-3 Structured Text.
New Replies:
Beckhoff has a large range of controllers that use their Twincat IEC 6-1131 software, allow you to...
Using matricon opc datamanager, trying to establish a bidirectional communication with Honeywell APP node OPC server & Siemens simatic S7 OPC server.
New Replies:
By Bill Graham on 24 September, 2009 - 3:52 am -
Have you got a data historian system that can read the data in to first using a true OPC Client ?...
By Adriel Michaud on 23 September, 2009 - 3:34 pm -
If you need a hand, your best bet will be to contact MatrikonOPC's support at www.OPCSupport.com
...
from the application, engineering, automation department...
Interfacing Siemens S7-300 cpu 313C with ABB's compact HMI scadaHow to interface the Siemens S7-300 cpu 313C with ABB's Compact HMI SCADA?
Some technologies have been in development for years, but only a few enjoy commercial success.
New Replies:
By M Griffin on 23 September, 2009 - 4:24 am -
If I knew the answer to all that for sure, then in 3 to 5 years I would probably be pretty rich. I...
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:
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...
Jeremy mentioned...
>Ken Crater tried this with an independent lab and there was no interest...
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 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,...
GT trip during Fuel Change Over
Free/Open Source software project MBLogic now has soft logic.
New Replies:
By M Griffin on 18 September, 2009 - 3:22 am -
Don't forget with the EZAutomation I/O that you also have to include a base. The base contains all...
Thanks for the pointers. EZAutomation does provide good prized and flexible I/O (ModBus RTU; ModBus...
Thanks for the reply. I was thinking maybe I can use a ModBus to I2C converter. Googling for such a...
By William Sturm on 16 September, 2009 - 11:14 am -
Try EZAutomation for low cost Modbus I/O.
Bill Sturm
...
By M Griffin on 16 September, 2009 - 10:32 am -
I haven't implemented any drivers for I2C or X10, as I don't have any suitable hardware to test...
Can the MBLogic software be adapted to also work with I2C (I²C) and X10? I would use it then to...
Our TDC3000 system needs to a high voltage transformer.
New Replies:
Like Western Process Computers, VartechSystems also sells LCD touchscreen replacements for Aydin...
Second hand parts can be bought from: http://www.westernprocess.com/index.asp...
from the Forum department...
difference between Self regulating pressure control valves and filter regulatorWhat is the difference between Self regulating pressure control valves and filter regulator?
New Replies:
Self regulating control valves are valves that regulates the pressure of a line constant by either...
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...
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.
is anybody is interested in an Omron Host Link driver written in Java
New Replies:
By Kosmas on 10 August, 2009 - 12:43 am -
Hello,
I am working on a project to convert from vb to java using this omron. It would be a...
Can I use the Modbus frame size larger than 256 bytes?
New Replies:
The answer is NO
The volume and speed of data you wish to exchange between both the client and...
By M Griffin on 7 August, 2009 - 11:00 am -
It's hard to suggest a good alternate protocol without knowing a lot about the application. So far,...
By Mark on 7 August, 2009 - 8:07 am -
Hi,
Since you are controlling both ends it might be advantageous to create your own.
FTP...
Thanks very much for your reply.
In my case, I am in control of both ends.
I need to transfer...
from the Automation List department...
Mathematical Model or transfer function of Process instrumentsI want to know about the mathematical model or transfer function of elements such as: Needle Valve, Differential Pressure Transmitter, Control Valve, etc.
New Replies:
By any on 4 August, 2009 - 1:40 pm -
moderators note: This request is similar to one made a few years ago. It is not...
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 Nerds in Control, LLC. All rights reserved.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!