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I specialize in SCADA programming and have a good knowledge of PCS 7, BUT HELP!!! I'm Lost I started a new project on S7 and have no clue as to where to start!
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By curt wuollet on 8 December, 2009 - 7:58 pm -
Welcome to the much revered S7 world. This is the standard first reaction. Don't worry, it'll get...
Getting PC (master) to talks with my rabbit 3000 card (slave) using RS485 and Modbus RTU
I have a website with examples of 'C' code under Linux to Communicate with modbus PLC's
Premium configuration for Modbus over GPRS
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when the Schneider Premium (Master) stops communicating, if I restarting the Premium, it work...
After the system stops communicating, can you get it to start working again by restarting the...
pl7/07 program not available. solutions?
A question that has been on my mind for some time...
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By David Ferguson on 8 December, 2009 - 8:29 am -
No, we choose to use it because Windows is everywhere and people are familiar with it, so companies...
By giovanni on 8 December, 2009 - 8:28 am -
the thread that won't go away.....i love it
Why do I pay for programming software?
Because I...
By Ken E on 8 December, 2009 - 7:17 am -
While these are valid points for simple projects I'm not sure they are valid for larger projects....
Simple answer: I don't.
A lot of people complain about the monopoly of automation software and...
By curt wuollet on 6 December, 2009 - 6:51 pm -
I agree, at some point the cost of keeping up with MS designed obsolescence and dragging all that...
By curt wuollet on 6 December, 2009 - 6:29 pm -
Yes, but as usual, their partnership with Microsoft means they will be leaving the XP stability...
By M Griffin on 6 December, 2009 - 4:11 pm -
There is no real technical advantage for using MS Windows for GUI work as compared to any other OS....
By Bob Peterson on 6 December, 2009 - 10:13 am -
I've been using Rockwell software since before it was RS.
I will grant that their history of...
By curt wuollet on 5 December, 2009 - 10:57 pm -
The advantages all relate to it's monopolistic omnipresence. If there are any technical advantages,...
By Jon Lamb on 5 December, 2009 - 10:11 pm -
Thar's a fascinating story if ever...
Here I am, studying Ladder logic, PLC's etc at college...
By William Sturm on 3 December, 2009 - 10:31 am -
criders said:
"If the cost of the software is that much of a problem, learn to program them...
Hi All,
Just browsing and I read the entire post. It took several hours! I studied PLC's in...
I want to use the PID temperature controller block of SIEMENS S7 PLC for my temperature controls.
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By Darko Dobrijevic on 8 December, 2009 - 7:35 am -
Dear Mr. Nielsen,
As a novice in PLC programing I have had some trouble understanding PID block...
To connect the CompactLogix to Modbus, when should I use the Prosoft card (MVI69-MCM) and when shall I use the Allen Bradley card (1769-SM2)?
Getting partially updated data using CIP over Ethernet
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By Gilles Allard on 7 December, 2009 - 5:29 pm -
ccervp wrote:
> What gives? Isn't the CIP transfer of a tag supposed to be atomic? How can I...
Adding new fast analog module in Rslogix 500 project, need guidance
Solution for display and alarm technology to monitor temperature.
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Hi Sanjib,
Eurotherm has an upgrade for the 6380 called the T640, which can fulfill all your...
I have some problems on the TCI.
it stops when the operating system of the HMI start.
it stops when the operating system of the HMI start.
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eng_ahmad,
i think there is a problem in the dongle try to remove it and return it again then...
Looking for a RLL (LD) code sample of a block that can scan an array of INT variables and compare with limits stored in another array, setting and latching a bit if limit exceeded.
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Clarification: on 90-70s, I can use the @R1001 to indicate that R1001 holds the address of where to...
All card failure in Mark VIe panel
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>Can you tell us exactly what GE did to
>solve this problem. We are in contact
>with...
>we got same problems. you must contact
>Ge to install the last switches version.
Can you...
By lemed on 3 December, 2009 - 2:21 pm -
we got same problems. you must contact Ge to install the last switches version....
In a Power Generation System, why would you use ModBus - ModPus Plus and LONWorks together?
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By Fred Loveless on 4 December, 2009 - 9:44 am -
I see this all the time. Now that the industry is using standardized communications between servers...
By Wassim Daoud on 3 December, 2009 - 5:23 pm -
Hello,
what kind of issues are you experiencing? are you using OPC?
Looking forward to...
I think that this issue arises because Cummins uses compressor controls with LonWorks protocols....
Missing Diagnostic alarm from MKV Panel
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Thanks for the feedback! It really is the most important contribution here at control.com.
...
Ok the problem in the end has been solved. It was because the file in the Prom Directory didn't...
Need help Programing TWIDO PLC to create alarms
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By Ramu on 4 December, 2009 - 5:50 am -
Hello Wasim,
I was trying to install your Matrikon software downloaded from the link that you...
By Wassim Daoud on 3 December, 2009 - 5:31 pm -
Hello,
there is an easy way to use generate alarms. You can use opc technology. you can...
By Syed Irfan Ahmed on 3 December, 2009 - 1:42 pm -
Dear Andrey
If you want you can send your program on following address
irfanelectrical [at]...
GSM/GPRS modem for ABB AC500 PLC
DB addressing DataType as S5timer conversion to Proface.
Needing information about the TSX80
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By Schneider Italy on 2 December, 2009 - 4:23 pm -
Did you contact Schneider Electric?? What did they answer?...
help on choice of an Ethernet-MPI interface
What software and cables are needed to upload program from Hitachi PLC
Handling simultaneous multiple connections (TCP/IP) on a slave using Modbus protocol
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By Mark on 2 December, 2009 - 9:54 am -
Hello,
> Is this really necessary? Modbus TCP is already available as Open Source. <
...
Is this really necessary ?
Modbus TCP is already available as Open Source.
We have this:
...
Read slave modbus from CPU Quantum.
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107 Transmit message time-out (This error is generated when the UART cannot complete a transmission...
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