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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
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-- Sydney J. Harris
-- Sydney J. Harris
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Posts from...
Friday, October 19, 2007
The big question is to select the proper field communication system for a STP (Sewage Treatment Plant)...
New Replies:
By Jonas Berge on 19 October, 2007 - 5:03 pm -
By Jonas Berge on 19 October, 2007 - 5:03 pm -
In my personal opinion PROFIBUS-DP is excellent for drives and motor starters. When it comes to...
Please can someone tell me how to caculate motor power?
How do you show WinCC user groups in Runtime?
Webclient vanishes with no errors
New Replies:
By DF on 19 October, 2007 - 4:59 pm -
By DF on 19 October, 2007 - 4:59 pm -
Thank you Gustavo.
I do suspect it is a sp2 issue. But dcom wizard I understood addressed issues...
Polling with large SCADA with 33 PLCs/DCSs
New Replies:
By BCG on 19 October, 2007 - 4:59 pm -
By BCG on 19 October, 2007 - 4:59 pm -
Dear Adel,
I would like to suggest the following:
1. Use OPC servers in Station levels for...
I need information about a servo amplifier ABB, the model is BHL 12/30/300 RR
A dc motor of torque 1kg-cm is to be rotated from 1 to 150 r.p.m based on the speed mentioned in that range
New Replies:
By Greg Parrott on 19 October, 2007 - 4:56 pm -
By Greg Parrott on 19 October, 2007 - 4:56 pm -
Your selection will be dictated in part by the level of precision needed at each end of the speed...
Can anyone show me the Modbus RTU souce code in PIC ASM file?
New Replies:
By Roy on 19 October, 2007 - 4:54 pm -
By Roy on 19 October, 2007 - 4:54 pm -
Is this the source code from the Modbus.PL website?
http://www.modbus.pl/downloads.htm
Thanks,
...
Need help printing a Modicon Concept software
New Replies:
By Bradley Hite on 19 October, 2007 - 4:54 pm -
By Bradley Hite on 19 October, 2007 - 4:54 pm -
If you still need the file printed you can send it to me.
Bradley G. Hite
Intertech Inc
...
from the Confused in simple issues department...
Basic difference between Zone-2 and Zone-1 equipment
Exd/Exe equipment for Zone-2 and Zone-1
New Replies:
By Ingrid M. Gilstrap on 19 October, 2007 - 4:52 pm -
By Ingrid M. Gilstrap on 19 October, 2007 - 4:52 pm -
Bruce,
Thanks for your response to my question about Zone 1 flameproof approved product use in...
I have the problem: bad checksum on response modbus error code 120...
Controlling a valve using digital outputs
New Replies:
By Joao Paulo Massignan on 19 October, 2007 - 4:48 pm -
By Joao Paulo Massignan on 19 October, 2007 - 4:48 pm -
A valve on/off has only 2 discrete states, open or closed, so you can't use PID control because the...
Would u suggest any institution for embedded systems in hyderabad?
New Replies:
By naveen on 19 October, 2007 - 4:38 pm -
By naveen on 19 October, 2007 - 4:38 pm -
Hi Suresh,
Better approach Pantech Solutions for Embedded training, because they are involved in...
tell about the learning centers offering embedded course in chennai.
New Replies:
By surendar on 19 October, 2007 - 4:33 pm -
By surendar on 19 October, 2007 - 4:33 pm -
Hai friend,
Instead of joining any institute, you can get the embedded development tools from...
By Chandra Rao on 19 October, 2007 - 4:31 pm - Hi Budding Engineers,
We are using Pantech Solutions, Embedded Development tools in our R&D...
I want to learn Binary code...
New Replies:
By mel on 19 October, 2007 - 4:29 pm -
By mel on 19 October, 2007 - 4:29 pm -
#1, you have too many digits. Binary code is octadecimal... What you actually have is two...
We are looking for alternatives to the traditional "Taylor" pneumatic controller...
New Replies:
By Rich on 19 October, 2007 - 4:23 pm -
By Rich on 19 October, 2007 - 4:23 pm -
Gordon Instrument Lab, Inc. repairs and sells remanufactured Taylor, Foxboro, Rosemount, etc....
Can someone explain the whole 4-20mA thing to me?
New Replies:
By GLM on 19 October, 2007 - 4:17 pm -
By GLM on 19 October, 2007 - 4:17 pm -
Basically, milliamps are transmitted in common wire, so it can be measured. 0 miliamps is the...
By Bruce on 19 October, 2007 - 4:08 pm - The 4-20 mA is typically sent through a 250 ohm load. The logic being read is therefore 1 - 5...
By Issac on 19 October, 2007 - 4:01 pm - See this thread from awhile back...
http://www.control.com/thread/1026235722#1026235739
Issac...
By sridhar juluri on 19 October, 2007 - 3:36 pm - As there is a leakage current so 0 to 3 MA, so we consider as 4-20MA. But in some cases we will...
Is HART wireless HART without wires? or forced obsolescence?
New Replies:
By Jonas Berge on 19 October, 2007 - 4:14 pm -
By Jonas Berge on 19 October, 2007 - 4:14 pm -
You should have come to the ISA show in Houston a few weeks ago to see the HART booth... The ISA...
Detect when an IO module has an error
Finding a solution for expensive D-I/O for Foundation Fieldbus
New Replies:
By James Powell on 19 October, 2007 - 4:10 pm -
By James Powell on 19 October, 2007 - 4:10 pm -
Dear Hamid,
Your best choice for a mixed system that you described is PROFIBUS.
PROFIBUS DP...
I need the automatic ph dosing system. i want to maintain the ph of 10 of neutral solution (ph 7)by adding caustic solution...
New Replies:
By kumar on 19 October, 2007 - 4:08 pm -
By kumar on 19 October, 2007 - 4:08 pm -
Process is ph is 10, do I want to use any special type of ph electrode for this application? If so...
I need a Vibration Measuring System (sensor and transmitter)...
New Replies:
By sathish on 19 October, 2007 - 4:07 pm -
By sathish on 19 October, 2007 - 4:07 pm -
Contact Shinkhawa Electrical Co.
for more details details visit...
http://www.sec-america.com
...
How precise was temp instrumentation 150 yrs ago?
New Replies:
By Grishma on 19 October, 2007 - 4:06 pm -
By Grishma on 19 October, 2007 - 4:06 pm -
I am sorry. It was not my intention to be critical or biased of capabilities of people of...
Looking to automatically drain a tank that currently does not fully drain. Need Level transmitter, plc, and pump.
New Replies:
By otit on 19 October, 2007 - 4:04 pm -
By otit on 19 October, 2007 - 4:04 pm -
My ideas are:
1. For sensor you can use float switch which has 3 foot (I have reference branch:...
I'm having trouble establishing comms between RSView and an SLC 5/03
New Replies:
By SmallHydroGuy on 19 October, 2007 - 4:01 pm -
By SmallHydroGuy on 19 October, 2007 - 4:01 pm -
Thanks everyone. I was able to establish communications using OPC, over my existing RS232...
Can you tell me about connection server ETZ 510 to LAN and connection ETZ 510 to TSX Micro 3710?
New Replies:
By Nereida Calderon on 19 October, 2007 - 3:45 pm -
By Nereida Calderon on 19 October, 2007 - 3:45 pm -
Hi everybody.
I have a problem with connection ETZ 510 with PLC TSX 3722. I have reviewed some...
Address field
I would like to know how to redirect printer output (from an AC450)to a textfile.
New Replies:
By Bob on 19 October, 2007 - 3:42 pm -
By Bob on 19 October, 2007 - 3:42 pm -
You are in luck. Now there is a UNIX software extension to your AdvaControl software for exactly...
The parameters gotten from Trane BCU on the Bacnet and LON. Also on Comm5.
How can I upload an OP35 (COROS) program to a file?
Function of Turbine – Compressor set
Active power transducer required
GE gas turbine parameters fluctuations
New Replies:
By B.E on 19 October, 2007 - 3:37 pm -
By B.E on 19 October, 2007 - 3:37 pm -
Thanks for your replay, The problem is solved.
Since the turbine was running on speed control...
By Radhakrishnan on 19 October, 2007 - 3:31 pm - In a 2-shaft turbine it will be a bit time-consuming to correct a problem like this. We can provide...
I want some detailed information about the relation between Honeywell C200 and Allen Bradley ControlLogix...
What is the difference between managed network switch and unmanaged network switch?
New Replies:
By Deepak Zilogic on 19 October, 2007 - 3:33 pm -
By Deepak Zilogic on 19 October, 2007 - 3:33 pm -
Managed switch - Allows to configure the switch by the user through command line or web interface....
I want to have a training in embedded systems in India.
New Replies:
By Dr. Shyam on 19 October, 2007 - 3:25 pm -
By Dr. Shyam on 19 October, 2007 - 3:25 pm -
We have an extensive program on embedded systems training.
...
would it cause delay to mix several networks on the same switch?!
New Replies:
By Deepak on 19 October, 2007 - 1:13 am -
By Deepak on 19 October, 2007 - 1:13 am -
Using different networks through a single switch is not a problem, but it's not advisable, two...
from the Are there any decent ones anywhere??? department...
PL7 Pro guide for using bridging and FIP, etc.I'd like to be able to assist vendors with setting up the PLCs
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