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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
Veni, Vidi, Visa.
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Posts from...
Tuesday, August 12, 2008
Is anyone using Modbus RTPS protocol?
New Replies:
By Dick Caro on 12 August, 2008 - 10:53 pm -
By Dick Caro on 12 August, 2008 - 10:53 pm -
RTPS is part of the now aging iDA protocol that can still be downloaded from the Modbus-iDA...
Redundancy feature of AC800M controller from ABB
New Replies:
By bng on 12 August, 2008 - 10:52 pm -
By bng on 12 August, 2008 - 10:52 pm -
Hello,
Where are you getting your data from >5sec
I do not think so....
from the IT department...
Receiving data via Ethernet from IND560 Interface scale using RS232 with VB 6 AppRetrieving weights from IND560 interface via ethernet
New Replies:
By Tomas on 12 August, 2008 - 10:51 pm -
By Tomas on 12 August, 2008 - 10:51 pm -
Hi Samuel,
You can easily do this with the software BillRedirect...
from the Help with encoder and PLC program bascis department...
Is anyone experienced with Omron PLC?
I saw a previous post of somebody wanting help with using an encoder with a PLC
New Replies:
By Jim Miller on 12 August, 2008 - 10:49 pm -
By Jim Miller on 12 August, 2008 - 10:49 pm -
I haven't had any experience with Omron controllers, but I programmed AB SLC-500s and PLC-5s for a...
I need to choose a suitable PMdc motor for a flywheel (Diametre = 0.38m, m =10kg).
New Replies:
By Interesting on 12 August, 2008 - 10:46 pm -
By Interesting on 12 August, 2008 - 10:46 pm -
I now understand what you’re trying to explain. You’re right about the voltage decreasing with the...
By Jiri Baum on 12 August, 2008 - 10:13 pm - Hello,
It depends on the shape of the flywheel: for a solid disk, it's 8907J; for a spoked...
By Robert Scott on 12 August, 2008 - 2:18 am - In theory, you are right. It can be done. However that assumes there is no loss due to friction...
What will be the effect on capacitance if the insulation value decreases?
New Replies:
By Jim on 12 August, 2008 - 10:46 pm -
By Jim on 12 August, 2008 - 10:46 pm -
You would check capacitance with a capacitance meter, or DMM that has that setting. You have to...
Is there any professional software for the electrical engineer to do the electrical design like schematic and wiring diagram?
New Replies:
By this guy on 12 August, 2008 - 10:44 pm -
By this guy on 12 August, 2008 - 10:44 pm -
I am using EPLAN P8 at the company I'm working for, and I am having trouble getting other function...
from the what does 1Vpp mean? department...
how much is the amplitude of sin/cos encoder of heidenhain ern1387 I design a interface circuit of sin/cos encoder,
but i don't know the amplitude of its output. Do different companies produce this kind of encoder with the same output voltage amplitude?
but i don't know the amplitude of its output. Do different companies produce this kind of encoder with the same output voltage amplitude?
New Replies:
By Jim Miller on 12 August, 2008 - 10:43 pm -
By Jim Miller on 12 August, 2008 - 10:43 pm -
We manufacture a sin/cos encoder that provides a differential 1Vpp signal. This seems to be...
Can I convert 0-10V directly by resistors to 0-1v?
New Replies:
By Roy Matson on 12 August, 2008 - 10:38 pm -
By Roy Matson on 12 August, 2008 - 10:38 pm -
Short answer - Yes.
Just use 2 resistors in series to give the correct voltage.
You might want...
Modbus Mini-din
New Replies:
By Tom Tran on 12 August, 2008 - 10:38 pm -
By Tom Tran on 12 August, 2008 - 10:38 pm -
What is the make and model of the device or comms card that you are using?
Comm ports from...
By Miguel Lage on 12 August, 2008 - 1:32 am - I think that what you need is a Multi-function cable, ref. TSXPCX1031. This is the cable for...
What makes a generator coupled to a gas turbine increase load when load raise command is issued to Mark V
New Replies:
By Mikas on 12 August, 2008 - 10:36 pm -
By Mikas on 12 August, 2008 - 10:36 pm -
That is great explanation CSA.
I'd like to extend this story on steam turbines. I believe that...
By Jesus Santos on 12 August, 2008 - 2:36 am - What is rated to 120MW, the turbine or generator?...
By Enric_Tgn on 12 August, 2008 - 2:34 am - In essence, you are increasing the torque applied on the generator shaft (power, but speed is...
By CSA on 12 August, 2008 - 1:01 am - Isn't it obvious? It does so because it is commanded to do so, you said so yourself. All good...
link for the free Down loadable PDF book for Basics of Control and instruments?
New Replies:
By Marc Sinclair on 12 August, 2008 - 10:22 pm -
By Marc Sinclair on 12 August, 2008 - 10:22 pm -
> What's the world coming to? <
The world has changed, and I think for the better. ...
By yoga on 12 August, 2008 - 10:14 pm - Try this:
http://www.artikel-software.com/blog/ebooks/control-and-instrumentatio n/...
By CSA on 12 August, 2008 - 12:06 am - Walt,
I've been waiting for someone to say this. I've been considering writing a book myself,...
Quite strange findings on my flow orifice, which is affecting my differential pressure and my oil flow measurement.
New Replies:
By Roy Matson on 12 August, 2008 - 10:19 pm -
By Roy Matson on 12 August, 2008 - 10:19 pm -
That's why you should have a 3 valve manifold so you can zero the transmitter at line pressure....
Addressing of the data in the master and slave.
I have a DCS system of Foxboro that its HMI is very old. I want to upgrade this HMI without change...
New Replies:
By anonymous on 12 August, 2008 - 10:01 pm -
By anonymous on 12 August, 2008 - 10:01 pm -
You should upgrade to Foxboro I/A system only. Today's CP of I/A system is more powerful &...
I need help settling an argument!
Can a valid Modbus register ever be a size different from 16 bits?
Can a valid Modbus register ever be a size different from 16 bits?
Mk4-auto_synch_int_00xx
To query the status of the Registers of an energy meter using MODBUS RTU protocol
New Replies:
By sonachalam on 12 August, 2008 - 9:56 pm -
By sonachalam on 12 August, 2008 - 9:56 pm -
Hi all,
Thanks for your replies and suggestions.
I have tested the Power meter using the...
Specification of Digital Output of Eurotherm Controller
Selecting the components to interface... done with the mechanical aspects.
Java J2ee training in Kolkata and Bangalore with Live Project and Placement Opportunities...
New Replies:
By DHS on 12 August, 2008 - 9:47 pm -
By DHS on 12 August, 2008 - 9:47 pm -
Hi,
DHS Informatics is the best place to learn Java and j2ee because we have group of corporate...
I can not get my ML1100 to communicate with my honeywell 8010m comms module.
New Replies:
By Evandro Carlos Vizicato on 12 August, 2008 - 2:32 am -
By Evandro Carlos Vizicato on 12 August, 2008 - 2:32 am -
Hi Joe,
You need to change the Control Line in the Channel Config to No Handshaking (RS485...
looking for an Instrument of some sort that can show me the Mud Level inside a Thickener
New Replies:
By Roy Matson on 12 August, 2008 - 2:30 am -
By Roy Matson on 12 August, 2008 - 2:30 am -
Walt,
I share your lack of faith in ultrasonics especially if the interface layer is not well...
What constitutes a higher-level language?
New Replies:
By Barry Barnreiter on 12 August, 2008 - 2:28 am -
By Barry Barnreiter on 12 August, 2008 - 2:28 am -
There is now an OPC client library available for Python language, making it usable for many...
Please advise an appropriate motor and “how to” control (forward/backward) for reverse rotation of a brushless DC motor.
New Replies:
By Leonid on 12 August, 2008 - 2:27 am -
By Leonid on 12 August, 2008 - 2:27 am -
You simply change motor's mode of operation - from motor to generator one. As you may any PMBL...
I want to simulate a boost converter using fourth order Runge-Kutta.
Safety Valve Maintenance
I'm programming in Unity Pro and I want to know: how many sections I can create in a project?
AVR having slow response.
New Replies:
By shahbaz on 12 August, 2008 - 1:57 am -
By shahbaz on 12 August, 2008 - 1:57 am -
Dear,
Can you send me that manual? I am trying to upgrade my AVR.
Thanks....
I am looking for software to calculate Foundation Fieldbus H1 microcycle.
Our goal is replacing the controller of some old 6 DOF robots
New Replies:
By B on 12 August, 2008 - 1:37 am -
By B on 12 August, 2008 - 1:37 am -
Again the Delta Tau Data Systems has NC capabilities and is a fairly common system for use as you...
I am trying to calibrate the voltage and current transducer, but I'm not able to do it.
Mark-V <I>(IDOS) screen freezes every three/four hours.
New Replies:
By CSA on 12 August, 2008 - 1:28 am -
By CSA on 12 August, 2008 - 1:28 am -
You haven't said how you unfreeze the screen. Do you re-boot the computer? Is it just the data that...
By Bob Johnston on 12 August, 2008 - 1:12 am - First question, has it frozen or has it lost Arcnet comms....
Part-time embedded training
New Replies:
By Elegance on 12 August, 2008 - 1:26 am -
By Elegance on 12 August, 2008 - 1:26 am -
All,
It is our friend's company, where the working people joined together to make a better...
(Originally posted Tue, 25 Aug 1998) I am interested if anyone in the group has any specific reasons why they are still buying PLCs and not PC based controllers.
New Replies:
By tugalsan karabacak (Turkey) on 12 August, 2008 - 1:25 am -
By tugalsan karabacak (Turkey) on 12 August, 2008 - 1:25 am -
PLC code runs smoothly, it is so old, and cannot do complex algorithms. And it takes too much time...
Can anyone give me the cable connection diagram to connect laptop serial port (9 pin RS232) to B&R system 2005 - PLC CP260?
New Replies:
By Aj on 12 August, 2008 - 1:15 am -
By Aj on 12 August, 2008 - 1:15 am -
It's a RS232 null modem cable: pins 2,3 cross connected....
Need to reverse a 6RA70
On why restarting Mark V HMI is not advisable.
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