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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
Our policy is, when in doubt, do the right thing.
-- Roy L. Ash, ex-president Litton Industries
-- Roy L. Ash, ex-president Litton Industries
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Doubts about "generic" instrument
New Replies:
Hi DaveMH,
Thanks for your reply.
Now I realize that SIL is not a simple stuff. What I...
Marlon,
> So my question is do we need a SIL 2 rated instruments for the SIL1 loop? <
...
Hi Guys,
Im facing similar scenario as Ricardo had. Our automation guys did a SIL study and the...
Connecting KingFisher to Wonderware
Selection of CTs for REF Protection of Transformers
New Replies:
By Hitesh Patel on 15 September, 2009 - 10:21 am -
>1) What is Knee-point voltage of CT's & how to calculate it? <
Firstly, The...
Automatically restore an XYZ "robot" to the position that the motor was in when the safeguard was opened
New Replies:
Michael -
Sorry, I just read this one.
I was referring to manually moving it if required....
By M Griffin on 14 September, 2009 - 3:21 pm -
In reply to Davis Gentry: When you said "The operator could potentially manually the robot if...
By William Sturm on 14 September, 2009 - 2:00 pm -
Setting up a PMAC has gotten much easier in the recent years with the TurboSetup program. It walks...
By Ken Emmons Jr. on 14 September, 2009 - 9:31 am -
Hello,
Thank you, this sounds like exactly what we need. I will be in contact regarding the next...
By Ken Emmons Jr. on 14 September, 2009 - 9:20 am -
Hello,
I'm not proposing anything toward automatic recovery (that is without an operator...
By Ken Emmons Jr. on 14 September, 2009 - 9:10 am -
This is an interesting idea. You could probably just drop flags or increment a counter based on...
By M Griffin on 12 September, 2009 - 6:16 pm -
This is all really application dependent. I can remember going through all this (although with...
By curt wuollet on 12 September, 2009 - 1:11 pm -
If one were to write it like a state machine, recovery could be fairly simple and this could be...
By William Sturm on 12 September, 2009 - 10:30 am -
I think Ken is asking the robot to move back to the last commanded point using the inverse of the...
By curt wuollet on 11 September, 2009 - 11:23 pm -
Yes, I see that from later comment. You'll have to excuse me, you wouldn't believe some of the...
No, I'm not talking about auto-restart. The restart is initiated by the operator, hopefully once...
By curt wuollet on 11 September, 2009 - 2:08 pm -
The conflict that comes to mind is:
Robot does something socially unacceptable. Robot wrangler...
Using our Turbo controllers this is a fairly easy problem. The only wrinkle is that you have to...
By Ken Emmons Jr. on 11 September, 2009 - 9:20 am -
Hello,
Thanks for the reply. Solenoid/air cylinder locks are attractive for the case where the...
By Ken Emmons Jr. on 11 September, 2009 - 7:48 am -
I had talked to our Delta Tau distributor briefly but no ideas came to mind. Getting ahold of them...
By M Griffin on 10 September, 2009 - 10:30 pm -
I'm not sure of your exact application, but I assume the problem is operators opening the guard...
By William Sturm on 10 September, 2009 - 9:13 pm -
I don't remember the details, but I recall something about the Turbo PMAC lookahead buffers and...
Need professional people to post their experiences in any problems they faced in ge frame 5 gas turbine start-up or operation.
New Replies:
This is true:...
> Could someone please tell me the differences between Mark VI and Mark VIe? <
The MKVI...
You don't have a problem because your turbine(s) have Mark VI, or even if they have Mark VIe....
Could someone please tell me the differences between Mark VI and Mark VIe?
How much improvement...
PLCS Project required
New Replies:
By P.KUMAR on 14 September, 2009 - 9:29 am -
Nice to reply thru mail engr,
First of all I have to make clear one thing that PLC is control...
I need to design an RTU which measures a analog signal, processes it and then sends it over to a control room via GPRS network.
New Replies:
By Rajiv on 14 September, 2009 - 5:51 am -
> I have a similar problem. In my project, I have a GPRS modem (with a SIM card) <
The...
Online Gas Chromatograph Parameter definitions
Problem with receive data form PLC to the buffer using C# or VB language.
PID pump controller for VSD constant pressure water booster system.
I have ring main unit which one side is connected with 11 KV bus A and second side is connected with 11 KV bus B. bus A power feeding from 01no. 35 mw generator and bus B power feeding from another 35 MW generator and both generator are paralled with busc
New Replies:
By Phil Corso on 12 September, 2009 - 1:40 pm -
Vimal,
are you interested in knowing how the additional generators will impact:
...
Licensed-FREQ Ethernet Radio for USA SCADA application.
New Replies:
By John D Quandt on 11 September, 2009 - 6:39 pm -
I am the regional sales manager for GE MDS and we do have the SD9 available that is an ideal fit...
Log data from serial ports.
New Replies:
By M Griffin on 10 September, 2009 - 11:58 pm -
As for manipulating the Modbus packets, that is what the links to libmodbus and pvbrowser were for....
I justed wanted to post the code that I have so far and get some feedback. Go easy on me, I am not...
Thank you for the link.
I implemented this process and it is working fine. But now I am trying...
I made a mistake on the link. Try this one...
http://scadametrics.com/blog/?p=22
...
Glad that my solution was helpful, Vaneeth.
My snooper program was written in C and compiled in...
from the instrumentation department...
One HART Communicator to communicate with different manufacturers terminalpurchase only one manufacture HART terminal for configure different manufacturers' transmitter
New Replies:
By Carl on 10 September, 2009 - 2:17 pm -
I've found that virtually each firmware rev of each transmitter model needs its own DD, device...
Version control software for ControlLogix ladder
New Replies:
Hi,
Why not take a look at tortoisegit instead? Git is imho a better vcs system since its...
By George Grecu on 10 September, 2009 - 9:19 am -
I am also interested to implement such versioning control system. Did you have any luck? Could you...
ABB CDP312r control panel
Can I change displacer level switch with float level switch?
New Replies:
By sd on 9 September, 2009 - 11:33 pm -
Any suggestion for HRSG blow down pit level application?...
Need copy of Seriberco AIM 5000 Schematic
New Replies:
By ALVIN BOTELHO on 9 September, 2009 - 10:31 pm -
To M.Griffin
Thanks for going out of your way to help me I really appreciate it.
I have a...
By M Griffin on 8 September, 2009 - 12:52 am -
I have a bit of experience with their older models, but not the 5000. However, with the 4000 and...
to have a clear idea about the signal transmission from a field instrument to the dcs module in a power plant
New Replies:
By Roy Matson on 8 September, 2009 - 11:22 am -
In a power plant you have many thermocouples in close proximity to the control system so it may be...
Hi,
I agree with other replies. These signals must be treated in a different way from other...
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