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Today, Tuesday, February 9, 2010
Flame is disappearing during start-up of GT frame6B.
New Replies:
excuse me how you know 10 second as i know the ignitor establish the flame for 1 minute for all...
Flickering flame indication after establishment of flame is typically caused by low fuel flow-rate...
Any risks to connecting ODH to DeltaV .
need to capture some very short signal length IO, like clicker wrenches, and such
Convert GE MarkV TMR panel into simple panel
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If you mean is it possible to convert a TMR Mark V Speedtronic control system to a SIMPLEX control...
Frequent failure of stop solenoid coil.
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Have the failures occurred on the same units? Or have they occurred on different units? In other...
how to design telemetering a electric motor for fault detect
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I would install a very inexpensive PLC at the remote motor site and have it read an auxiliary...
How do I calculate the average value of the wind direction when 0° and 360° are the same?
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Ville,
IMO, Bob Peterson has the best solution (and it's one of the simplest approaches, too).
...
By Pete on 8 February, 2010 - 6:02 am -
>First convert for Degrees to Radians.
>Then take the SIN of the Radians.
>Next Average...
Upgrading from frame-6B GE gas turbine with Mark V control system to GE <HMI>
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> We discussed with GE regarding the ARCNET card, whether it to be replaced or not, the said...
By Nair on 8 February, 2010 - 8:23 am -
Our Mark V control has DOS based <I> and we are planning to upgrade Windows-XP <HMI>.
...
By Nair on 7 February, 2010 - 11:50 pm -
Thanks for your reply
Yes, we have DOS <I>, How HMI will be an advantage than DOS...
You really haven't given us much useful information as an HMI is not necessarily an HMI when...
By DAMENE Amar on 7 February, 2010 - 8:11 am -
Hi Mr.
The GT Frame-6B is a big machine and needs a big HMI hard and soft.
I am faced the...
how many I/O does MARK VIe software have?
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Effectively, the Mark VIe I/O capacity is unlimited because of the architecture that's used to...
We are using Triconex PLC in our Plant Emergency Shutdown Systems. As we know Triconex is Fault Tolerant and a very rugged PLC but costlier as compared to other make PLCs
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By Yogesh on 8 February, 2010 - 1:39 pm -
Dear Ravi,
I am also working on the Safety Systems. But what i found is, there are also other...
By Claude Lovell on 27 January, 2010 - 8:15 pm -
Wow, that is a really hard question to answer.
In general, you can expect to pay 2-3 times the...
By Claude Lovell on 27 January, 2010 - 8:01 pm -
I have to differ with you on this one Roy. I am a turbomachinery consultant with Triconex and have...
Input on how to connect a S7-300 PLC to NI OPC server via USB.
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By Fred Loveless on 8 February, 2010 - 12:42 pm -
The S7-300 MPI driver in the NI OPC Server does not support the USB to MPI adapter at this time. It...
By Wassim Daoud on 8 February, 2010 - 11:31 am -
Hello,
Have you tried this OPC Server. it's auto-configurable and it detects the PLCs...
By DanJack on 6 February, 2010 - 8:54 pm -
Hmm. Basically the entire setup hinges on whether or not the Siemens drivers that come with the NI...
By Tech4All on 6 February, 2010 - 11:43 am -
Dan Jack,
Allen Bradley makes an HMI called PanelView Plus, in various models with a basic part...
from the PML or Modbus, one or the other department...
3710 ACM Power Measurement Electric Meter ModbusNeed modbus rtu card for 3710
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By Andy on 8 February, 2010 - 12:11 pm -
Joe,
Can you fix one??
What are you offering?...
method of connecting a DCS system to GE Mk6 using Modbus serial...
New Replies:
By Wassim Daoud on 8 February, 2010 - 12:01 pm -
You can use OPC for this. Here is an OPC server for Modbus:
...
By Capriconian on 6 February, 2010 - 12:37 pm -
Hi Markvguy,
I am looking for these manual very desperately. Can you please send me the manuals...
can I communicate between Speedtronic MKVI and MKV with Kepserver
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By Wassim Daoud on 8 February, 2010 - 11:27 am -
Hello CS,
No, you don't need to have the GSM application running on the OPC Server machine. the...
By Fred Loveless on 8 February, 2010 - 11:21 am -
Actually you can. Both devices support EGD or Modbus TCP which are protocols that Kepware has...
By CS on 8 February, 2010 - 12:44 am -
Wassim,
With OPC server for GSM, do we need GSM application running on the OPC server machine? ...
By Fred Loveless on 18 January, 2010 - 3:04 pm -
We do not have any drivers that specifically support these devices at this time. You could use our...
By Wassim Daoud on 18 January, 2010 - 2:34 pm -
You can do that easily and without GSM with this server:
...
Developing the best tools and practices to develop a new Generic PLC Ladder Editor.
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By Ken E on 8 February, 2010 - 10:34 am -
I have to re-iterate that I think reverse engineering a PLC download is ill advised. Doing what...
By curt wuollet on 7 February, 2010 - 2:39 am -
> As I think about this some more, I have a few other suggestions about an implementation. <
...
By curt wuollet on 6 February, 2010 - 5:54 pm -
Hi Dave
> In my opinion the only way you have any chance of doing this is browser based....
By M Griffin on 6 February, 2010 - 5:02 pm -
As I think about this some more, I have a few other suggestions about an implementation.
As I...
By M Griffin on 6 February, 2010 - 3:07 pm -
In reply to curt wuollet:
> I propose to look at their DL06 and friends first as this is a sort...
By Dave Ferguson on 6 February, 2010 - 1:06 pm -
In my opinion the only way you have any chance of doing this is browser based. Otherwise you will...
By Steinhoff on 6 February, 2010 - 5:29 am -
Hello,
In reply to KEJR.
DACHSview-SDL doesn't support SFC ... it supports function block...
By M Griffin on 6 February, 2010 - 2:49 am -
In reply to Anonymous: If you are worried about what Rockwell might do if they found out who you...
By curt wuollet on 6 February, 2010 - 2:11 am -
If you have hardware, ControlLogix could certainly be a target. I don't and only would if, by...
By curt wuollet on 6 February, 2010 - 2:02 am -
Actually I have begun, but a wise man said "The sooner you start coding, the longer it will...
By M Griffin on 5 February, 2010 - 8:21 pm -
In reply to Ken E: I think it's a lot easier to write your own soft logic system than it is to...
By Anonymous on 5 February, 2010 - 6:23 pm -
M. Griffin asked:
> The question is do you know how to compile and download a single rung of...
By David Ferguson on 5 February, 2010 - 3:28 pm -
OK I'll bite.....................for one thing, if you think that I need to see Control Magazine to...
By Ken E on 5 February, 2010 - 2:44 pm -
In reply to Armin Steinhoff:
You mention your system can develop an outline for overall top...
By Ken E on 5 February, 2010 - 1:50 pm -
I admit that for "simple" to intermediate projects that a web interface
ladder editor...
By Steinhoff on 5 February, 2010 - 9:20 am -
In reply to KEJR:
> [ pseudo code deleted :) ]
> What CAN be difficult is that non RTOS...
By curt wuollet on 4 February, 2010 - 11:48 pm -
And I promise to rev it every year or so, so he can pay for it again. But really, Dave has a role...
By curt wuollet on 4 February, 2010 - 11:28 pm -
Yes, but it's hard to do with someone else's PLC. Not a problem with a Linux PLC. It doesn't solve...
By M Griffin on 4 February, 2010 - 8:39 pm -
In reply to Curt Wuollet:
> I don't find that remarkable, since none is offered by any...
By William Sturm on 4 February, 2010 - 7:22 pm -
> put the editor on the "PLC" and pull it up remotely using a Web browser. <
I...
By M Griffin on 4 February, 2010 - 4:59 pm -
In reply to Vladimir E. Zyubin:
>> put the editor on the "PLC" and pull it up...
By Ken E on 4 February, 2010 - 11:35 am -
In reply to Armin Steinhoff:
If my interpretation of your on/off example is correct a version if...
By anonymous on 4 February, 2010 - 6:03 am -
On Dave Ferguson's post:
TA> What is the market share for Linux supported Pc...
By anonymous on 4 February, 2010 - 5:20 am -
Hello,
In reply to James Ingraham:
> put the editor on the "PLC" and pull it up...
By Steinhoff on 4 February, 2010 - 5:17 am -
> I just don't see that type of SFC programming being easier to write than text programming...
By curt wuollet on 4 February, 2010 - 4:03 am -
Hi Dave
> So I just read the Control Engineering magazine annual awards. Not one category of...
By M Griffin on 4 February, 2010 - 3:28 am -
Dave Ferguson said:
>I will NEVER get a large client to deviate from an unproven, unbacked...
By Dave Ferguson on 3 February, 2010 - 6:42 pm -
So I just read the Control Engineering magazine annual awards. Not one category of a non Windows...
By curt wuollet on 3 February, 2010 - 6:06 pm -
Hi Michael
No, I don't know if it's feasible yet. That would require owning or at least...
By Ken E on 3 February, 2010 - 9:57 am -
In response to Armin Steinhoff:
I just don't see that type of SFC programming being easier to...
By Steinhoff on 3 February, 2010 - 6:20 am -
> Do you have examples/screenshots of function block code running a detailed sequence? <
...
By M Griffin on 2 February, 2010 - 9:43 pm -
In reply to Curt Wuollet: You said "Imagine using rockwell without the big bucks". Do you...
By Ken E on 2 February, 2010 - 8:36 am -
In reply to M. Griffin:
I'm not talking about typical PLC racks I suppose. Currently I use a lot...
By Ken E on 2 February, 2010 - 8:25 am -
In reply to Armin Steinhoff:
Do you have examples/screenshots of function block code running a...
By Steinhoff on 2 February, 2010 - 6:09 am -
KEJR wrote:
> [ clip ]
>
> For the text based RTOS your actual code can be very...
By curt wuollet on 1 February, 2010 - 10:26 pm -
Hi Ken
> I'm not trying to be difficult, but what really is the point to having a free (as in...
By M Griffin on 1 February, 2010 - 3:48 pm -
In reply to Ken E: Typical PLC rack style hardware isn't up to sub-millisecond scan rates. The...
By Ken Emmons Jr. on 1 February, 2010 - 10:14 am -
Armin,
In response to Graphical vs. C/C++ text editing:
I think we are describing two...
By Ken E on 1 February, 2010 - 9:51 am -
In reply to M. Griffin regarding embedded hardware:
I always thought it would be cool to use a...
By Ken E on 1 February, 2010 - 9:41 am -
Curt,
I'm not trying to be difficult, but what really is the point to having a free (as in...
By curt wuollet on 31 January, 2010 - 5:10 pm -
Hi Armin
I think I missed a tick here. What editor are you talking about? As far as the rest, I...
By Steinhoff on 31 January, 2010 - 4:38 am -
Hi Curt,
so what we need isn't an editor for ladder logic at first.
We need a *standard* for...
By curt wuollet on 30 January, 2010 - 11:12 pm -
Hi Armin
> Do you believe that the PLC vendors would open up their proprietary design of...
By Steinhoff on 30 January, 2010 - 5:57 am -
> I don't think you are getting what I'm doing. From the users perspective, it's a ladder...
By curt wuollet on 30 January, 2010 - 3:22 am -
Whem they used OTS components, you could simply dump the ROM and disassemble the contents and you...
By M Griffin on 30 January, 2010 - 2:50 am -
In reply to Curt Wuollet: I think you are jumping into the middle of the problem instead of...
By curt wuollet on 30 January, 2010 - 2:14 am -
Hostile takeover :^) of a commercial PLC is certainly not the easiest way or the best. But it's...
By M Griffin on 29 January, 2010 - 11:28 pm -
In reply to Curt Wuollet:
>I was thinking along the lines of: Can
>we define a struct or...
By M Griffin on 29 January, 2010 - 10:32 pm -
In reply to Ken E.: If you aren't going to use the PLC OEM's complete system, then there is no...
By Bruce Durdle on 29 January, 2010 - 10:25 pm -
Back in the days of the Modicon 484/584, the programming manual (I think) came with a detailed...
By William Sturm on 29 January, 2010 - 8:04 pm -
cww said: "Only the PC is running Linux and the editor works for all your PLCs"
I...
By curt wuollet on 29 January, 2010 - 7:41 pm -
I agree with all of that, but then we're back to new hardware.
Regards
cww...
By curt wuollet on 29 January, 2010 - 7:32 pm -
Hi Michael
Yes, that sounds like the drill.
I was thinking along the lines of: Can we define...
By curt wuollet on 29 January, 2010 - 4:18 pm -
Hi Michael
We would need the usual boxes and dialogs, etc. But which one would be easiest to...
By curt wuollet on 29 January, 2010 - 4:02 pm -
I don't think you are getting what I'm doing. From the users perspective, it's a ladder editor,...
By curt wuollet on 29 January, 2010 - 3:14 pm -
Hi Russ
> Many years ago I used a programming tool from WRB Associates called...
By Steinhoff on 29 January, 2010 - 2:56 pm -
> I guess I prefer C/C++ syntax (For OOP I actually like C# better than C++) over something like...
By Ken E on 29 January, 2010 - 11:35 am -
I guess I prefer C/C++ syntax (For OOP I actually like C# better than C++) over something like...
By Ken E on 29 January, 2010 - 11:26 am -
I think reverse engineering a commercial PLC is perhaps the wrong way to go. In most cases the...
By Ken E on 29 January, 2010 - 11:11 am -
I think I'm somewhat responsible for pulling the C/C++ element into this discussion so I wanted to...
By Steinhoff on 29 January, 2010 - 4:44 am -
> I agree with most of your points. I do think that particular hardware needs to be tested and...
I think a standard programming language is the best solution.
The basis should be C++ classes.
...
By M Griffin on 29 January, 2010 - 2:31 am -
In reply to Bruce Durdle: I'm the one that said that IEC 61131-3 is a monster of a spec. By that I...
By M Griffin on 29 January, 2010 - 1:02 am -
In reply to Curt Wuollet: When I say that an editor has to be PLC specific, what I mean is that it...
By M Griffin on 28 January, 2010 - 10:58 pm -
In reply to KEJR: You have four main choices for GUI development in Python, and all four are...
By Bruce Durdle on 28 January, 2010 - 7:55 pm -
Hi Curt,
The trouble with the "pull" principle is that the thing on the end of the...
By curt wuollet on 28 January, 2010 - 2:45 pm -
Hi Michael
Excellent and relevant points all.
For the record, no, I don't like IEC 61131-3....
By Russ K on 28 January, 2010 - 12:47 pm -
Many years ago I used a programming tool from WRB Associates called "Ladders". It...
By Ken E on 28 January, 2010 - 11:06 am -
Mr Steinhoff,
I agree with most of your points. I do think that particular hardware needs to be...
By Steinhoff on 28 January, 2010 - 11:04 am -
>> At the risk of being ridiculed, have you thought about Java? You immediately get...
By Ken E on 28 January, 2010 - 10:53 am -
Mr Griffin,
What would be a good toolset to do a quick GUI in python that would be cross...
By Steinhoff on 28 January, 2010 - 5:14 am -
>> CWW Said : "What is needed is a module that does the things common to PLC programming...
By curt wuollet on 28 January, 2010 - 2:56 am -
Hi Ken
You're preaching to the choir :^)
Most of that has been done and you can get the...
By Nathan Boeger on 28 January, 2010 - 12:38 am -
Writing a Linux Ladder editor as a module in the new Ignition platform from Inductive Automation...
By M Griffin on 27 January, 2010 - 10:38 pm -
In reply to James Ingraham:
>At the risk of being ridiculed, have
>you thought about...
By M Griffin on 27 January, 2010 - 10:18 pm -
In reply to Curt Wuollet: I started off by writing a big long reply to address your points...
By M Griffin on 27 January, 2010 - 8:54 pm -
In reply to Bill Sturm: The hardware exists, provided you don't want a shoe box format. Linux is by...
By curt wuollet on 27 January, 2010 - 3:04 pm -
Hi James
I don't often ask a question then ridicule the answer. One problem is I've done very...
By Ken E on 27 January, 2010 - 2:47 pm -
Curt,
I think in a way we are going backwards in our attempt to use sophisticated software tools...
By curt wuollet on 27 January, 2010 - 2:41 pm -
Hi Bill
I quite agree that we could use a truly open hardware platform. And yes, that can be...
By James Ingraham on 27 January, 2010 - 10:22 am -
At the risk of being ridiculed, have you thought about Java? You immediately get cross-platform...
By William Sturm on 27 January, 2010 - 8:32 am -
CWW Said : "What is needed is a module that does the things common to PLC programming packages...
Additional to my posting i send you this link
http://www.scicos.org/...
When it comes to traditional hardware PLC i use XP within VMware on a linux host system, because i...
By curt wuollet on 27 January, 2010 - 12:52 am -
Hi Michael
As one of the more ambitious authors of Linux software in automation, I am glad to...
By M Griffin on 26 January, 2010 - 9:37 pm -
Have a look at Beremiz (www.beremiz.org). It's an IEC 61131-3 software system that does ladder, IL,...
Being a Honeywell Engineer, im facing a tough competition from a Chinese made DCS called SUPCON. I want to know if there is anything which makes either of them superior than the other.
Why there is a "byte count" field in the Modbus frame format of function 16 (also in some other functions)?
Difference between EH transducer and EH actuator
IOMA power supply out of limits
create an interface between a Logo PLC and a Pc
Is it possible to communicate between TSX Quantum and Siemens S7-300 via Siemens Industrial Ethernet?
sample program to read in VB for modbus RTU
To upgrade or to substitute the PANEL Mark V
New Replies:
We are still operating MARK-II along with MARK-V on two gas turbines. Both systems are operating...
By DAMENE Amar on 8 February, 2010 - 3:48 am -
Thanks for CSA for this help.
I am the only reader of the end-of-life letter that GE has sent...
By DAMENE Amar on 8 February, 2010 - 3:41 am -
You say that Mark V is OLD now but if you know that we get in the past Mark II and running for...
By DAMENE Amar on 8 February, 2010 - 3:33 am -
Thanks for all,
Yes, this upgrade is for a gas turbine application, a Nuovo Pignone PGT25 (GG...
By G.Rajesh on 8 February, 2010 - 2:53 am -
Dear Otised,
We are appreciating your open command. ...
More information required! First, I assume this is a gas turbine application rather than a steam...
Mark V is OLD now, back from 1998. MarkVI came out in 2003, and in 2007 it was MarkVIe. Spares for...
Your management is probably responding to the end-of-life letter that GE has sent out about the...
Should a Modbus/TCP client get an immediate notification when the server cannot accept any more connections?
New Replies:
I like your reasoning - why try to defeat the built-in retry mechanism of TCP? I think I'll go with...
By M Griffin on 5 February, 2010 - 4:53 pm -
In response to Dick Caro: This example says nothing about Modbus/TCP's suitability for safety...
By M Griffin on 5 February, 2010 - 4:26 pm -
The reason there is a difference between how Microsoft handles connection limits and how everyone...
By Dick Caro on 5 February, 2010 - 2:13 pm -
This is a perfect example why Modbus/TCP was not intended for use in any emergency stop or safety...
Very slow communication between PCS7 and ION7300 Meter & Protection Relay
how to upload data from FCP270 from network host
Reprogram or changing the communication between PLC and Servo-drive.
New Replies:
Hi,
A Control-Logix is to expensive for the application.
The data will be the rate, speed en...
By Trevor Ousey on 6 February, 2010 - 7:47 am -
Hi,
probably need to know a bit more about the data going between the two.
Just some...
flash programming of controller after network failure
New Replies:
By Hamad on 8 February, 2010 - 1:18 am -
Thanks my email is sultanhamad_te [at] yahoo.com
...
By aan - on 7 February, 2010 - 3:32 am -
Hi Hamad,
give me your e-mail address, may be I can help you.
regards,
Aan
...
BBQ smoke measurement
New Replies:
By anonymous on 8 February, 2010 - 12:15 am -
Google is your friend, search for: measure smoke Ringelmann and Hellige.
Hugo...
SRV position in main display is showing "open" when it is closed.
New Replies:
By G.Rajesh on 7 February, 2010 - 11:47 pm -
As per specification LVDT readings should be 0.7001 for open and 3.0 for close.
At present we...
What kind of operator interface do you have? <I>? HMI?
These kinds of things can be done...
So, what has changed? I assume the indication was correct at some time recently.
Are the LVDT...
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