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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
Quick, sing me the BUDAPEST NATIONAL ANTHEM!!
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Posts from...
Tuesday, November 27, 2007
We are in the middle of design for one of the most complex fish hatcheries ever to be built in North America. Our engineering consultant is recommending standard PLC and SCADA alarm and control system but one of our staff is really pushing a WinPLC based system...
New Replies:
By Jim_AK on 27 November, 2007 - 11:59 pm -
By Jim_AK on 27 November, 2007 - 11:59 pm -
And again, we maintain that there is indeed an abundant and varied track record and history to...
By Jeff on 27 November, 2007 - 12:32 am - All,
I posted my question and promptly left town on a trip. I was amazed to return and find so...
Need advice about generation and load...
We are retro-fitting the existing Mark 2 DCS of a GE Frame 5 turbine with a Siemens T3000 DCS...
New Replies:
By cc on 27 November, 2007 - 11:57 pm -
By cc on 27 November, 2007 - 11:57 pm -
Contact Gas Turbine Controls. I have used them before, they have a full Library of MKII system...
By CSA on 27 November, 2007 - 11:26 pm - When you say, "We are retrofitting...", are you the owners/operators of the turbine? Or,...
How do you print the logic written in Modsoft ver2.6.2 on a computer running Windows XP?
New Replies:
By Benoit on 27 November, 2007 - 11:55 pm -
By Benoit on 27 November, 2007 - 11:55 pm -
In Modsoft, go to Tools, then Print and select your program. Go to Printer and select "Flat...
By IDX on 27 November, 2007 - 11:51 pm - Hi,
Do you have the UPF.exe at the Modsoft directory? That small program should help you to...
By Miguel Lage on 27 November, 2007 - 11:50 pm - You can print to a file. You have to select Flat File as printer and Modsoft.out or whatever as the...
This problem is about the interpretation stored by a Modbus slave client. It is about the byte order the data is stored.
New Replies:
By David on 27 November, 2007 - 11:53 pm -
By David on 27 November, 2007 - 11:53 pm -
Honeywell's HC900 hybrid controller uses floats (exclusively?), so it offers all four options for...
By Fred Loveless on 27 November, 2007 - 11:48 pm - The byte order is very important in the way a Modbus Master and a Modbus Slave talk to each other....
I was referred over here from www.MrPLC.com. We are developing a PC application in C/C++ and need to communicate to one or more Omron PLCs (CJ1M CPU12).
New Replies:
By CSTSOFT on 27 November, 2007 - 11:53 pm -
By CSTSOFT on 27 November, 2007 - 11:53 pm -
As a matter of fact, you need not write driving for each PLC. Please visit http://www.cstsoft.com
...
By Michael Griffin on 27 November, 2007 - 11:20 pm - If you are using the Ethernet module, you might want to look at the "socket services"...
By Nathan Boeger on 27 November, 2007 - 11:13 pm - I'm the culprit. He has technical requirements and is a C/C++ programmer. The usual OPC or ActiveX...
By KPressley on 27 November, 2007 - 1:04 am - Take a look at http://www.softwaretoolbox.com. They offer many different communications tools that...
How to use the xxmit block?
New Replies:
By Miguel Lage on 27 November, 2007 - 11:47 pm -
By Miguel Lage on 27 November, 2007 - 11:47 pm -
I have been using this function in a lot of different cases and places, and I think I can help you....
MKV Cores Not at A7 status
New Replies:
By Danno on 27 November, 2007 - 11:45 pm -
By Danno on 27 November, 2007 - 11:45 pm -
Thanks again for all the information... it is much appreciated. Yes, looking back I guess I didn't...
HMI touch screen using Modbus
New Replies:
By Fred Loveless on 27 November, 2007 - 11:44 pm -
By Fred Loveless on 27 November, 2007 - 11:44 pm -
If the HMI Touch Screen is PC Based (Embeded XP) then you could use Kepware's OPC Server with...
I appreciate any guidance from people exposed to greenhouse control, and PC coding for PIDs
New Replies:
By Michael Batchelor on 27 November, 2007 - 11:25 pm -
By Michael Batchelor on 27 November, 2007 - 11:25 pm -
Well, I've got both greenhouse and PID experience. And so do dozens of other people on this list....
Handling non-linearity of butterfly valve in a PID loop
1. Considering two axis model for generator, should there be any value for load angle and imaginary part of voltage during start up/no load?
2. Should speed changes effect voltage?
2. Should speed changes effect voltage?
What best motion drives to use?
New Replies:
By marko_PLC on 27 November, 2007 - 11:17 pm -
By marko_PLC on 27 November, 2007 - 11:17 pm -
Thanks B,
I was considering putting a DeviceNet card on the SLC and then going with any reliable...
By B on 27 November, 2007 - 12:13 am - I have a lot of the 1394 GML controlled systems, multi axis though... fairly reliable system...
...
Can I change out a 220 3-phase electric motor
for a 220 S-Phase motor?
for a 220 S-Phase motor?
New Replies:
By Tom Chubb on 27 November, 2007 - 11:15 pm -
By Tom Chubb on 27 November, 2007 - 11:15 pm -
By a single phase to three phase inverter....
By Gerald Beaudoin on 27 November, 2007 - 12:14 am - From your post, it looks like you already have single phase and have acquired some 3 phase...
Please confirm if each channel of an analog or digital input/output module for a PLC is provided with earth fault detection...
New Replies:
By Michael Griffin on 27 November, 2007 - 11:08 pm -
By Michael Griffin on 27 November, 2007 - 11:08 pm -
Most PLC manufacturers offer both relay and solid state outputs. Many customers prefer 24VDC...
I have been encountering high neutral to earth voltage in the UPS output. Would like to understand the cause and remedy?
New Replies:
By jojo on 27 November, 2007 - 11:03 pm -
By jojo on 27 November, 2007 - 11:03 pm -
I would recommend you check also the live to earth voltage, together with the neutral to earth...
By Prakash on 27 November, 2007 - 1:01 am - Hi,
Only sharing my experience.
We had also same experience in our 250kVa UPS. We connect the...
GE DS 200 TCEA Overspeed Card replacement
Is it mandatory to have same X/R ratio of the transformers meant for parallel operation apart from same %impedance, voltage ratio and vector group?
New Replies:
By Phil Corso, PE on 27 November, 2007 - 10:54 pm -
By Phil Corso, PE on 27 November, 2007 - 10:54 pm -
KDX, I apologize for not responding earlier. If you are still interested in an answer to your...
By mani on 27 November, 2007 - 12:33 am - How do I calculate the circulating current for the following problem:
I have 2 transformers in...
Communication between OP27 and Siemens PG M
New Replies:
By dchartier on 27 November, 2007 - 12:58 am -
By dchartier on 27 November, 2007 - 12:58 am -
Hello;
The PG has 2 com ports, a 9-pin for RS-232 and a 25-pin for TTY communications. On the...
By Bryce Gillan on 27 November, 2007 - 12:32 am - The port IF2 on OP27 has pinout:
2 TTY RxD-
6 TTY TxD+
7 TTY TxD-
9 TTY RxD+
The port on the...
Magelis Error Message
#203 Dialogue Table Reading Impossible.
Is this a communication error?
This is my first Magelis XBT N401 project.
#203 Dialogue Table Reading Impossible.
Is this a communication error?
This is my first Magelis XBT N401 project.
New Replies:
By Screw on 27 November, 2007 - 12:57 am -
By Screw on 27 November, 2007 - 12:57 am -
Hi everyone,
I have a problem with a Magelis display and a PLC Momentum. How can I make the...
I am thinking of developing the HMI/SACDA as a VB.exe animated with ActiveX objects... What software do you recommend?
100m distance sensor
New Replies:
By Anonymous on 27 November, 2007 - 12:26 am -
By Anonymous on 27 November, 2007 - 12:26 am -
40m is a long distance! Laser is the only reliable sensor to detect that far. If you have...
famouse sensors company
New Replies:
By syurish on 27 November, 2007 - 12:23 am -
By syurish on 27 November, 2007 - 12:23 am -
Try also Sensors Web Portal:
http://www.sensorsportal.com/HTML/Sensor.htm
Each of sensors...
I am trying to find out exactly who leads the terminal block industry in the US, their market share, and total 2006 sales.
ControlNet Scheduling via RSnetWorx
Fluctuation in the GCV
New Replies:
By CSA on 27 November, 2007 - 12:17 am -
By CSA on 27 November, 2007 - 12:17 am -
This is one of those questions that begs the answer: Why isn't GE contacted to resolve this issue...
new with modicon micro
New Replies:
By Benoit on 27 November, 2007 - 12:08 am -
By Benoit on 27 November, 2007 - 12:08 am -
Have a look at PLC-Workshop by FastTrack Softworks at http://www.fast-soft.com/page.php?22.
We...
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