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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
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Is there a way to call or set variables in the PID_ISA block from cimplicity like the Integral or Proportion ?
how a flow meter communicate
New Replies:
By Steve on 17 October, 2009 - 7:46 pm -
Hi,
I am looking for a water meter and a gas meter that can output Modbus, LonTalk, or BACnet. Do...
Problem reading weight using an rs232 serial port on a pc using VS2005 C#.
New Replies:
By Ian Finlay on 17 October, 2009 - 5:44 pm -
Hi Carlos,
post you string manipulation code here or send to me and see what can be done.
Do...
time synchronization in DCS system
New Replies:
By Ketan Lakhani on 17 October, 2009 - 4:29 am -
I feel that it is firstly required to understand as to why the synchronization is required. ...
By Y.K.JARIWALA on 16 October, 2009 - 2:00 am -
We are not very sure , but time synchronization plays very critical role in Multiple Node system we...
jianjian2112,
the target of time synchronization in DCS from GPS that if we have more than one...
A computer virus caused serious problems recently for an Australian electric utility.
New Replies:
By M Griffin on 16 October, 2009 - 4:37 pm -
In reply to Matt Warshawsky: I don't want to flog this issue to death, but there are a couple of...
By Matt Warshawsky on 15 October, 2009 - 4:24 pm -
It was never my intention to simply pass the same traffic over serial, but instead to use a simple...
By M Griffin on 15 October, 2009 - 2:06 pm -
In reply to Matt Warshawsky: I don't think we need to go to the lengths of installing serial...
Michael,
I think that I am more or less in agreement with your sentiment. The problem I have is...
By Andrey Romanenko on 15 October, 2009 - 8:08 am -
>OK, here is an idea to solve the problem: instead of connecting the business network and the...
By Matt Warshawsky on 15 October, 2009 - 3:32 am -
OK, here is an idea to solve the problem: instead of connecting the business network and the...
By Matt Warshawsky on 15 October, 2009 - 3:18 am -
Yes, you are correct on everything you said. In my opinion, the reason there are so many security...
By M Griffin on 14 October, 2009 - 8:19 pm -
In reply to DaveMH: You said: "Ultimately the responsibility for security lies with those on...
By M Griffin on 14 October, 2009 - 7:17 pm -
In reply to Matt Warshawsky: It's just as well that you added those remarks in your second reply,...
By Matt Warshawsky on 14 October, 2009 - 12:35 pm -
I guess I should add:
A firewall is actually just a piece of software running on an embedded...
By Matt Warshawsky on 14 October, 2009 - 12:14 pm -
In response to the various posts:
A firewall with no open ports (i.e. doesn't let any traffic...
By DaveMH on 14 October, 2009 - 8:21 am -
Michael
I don't think it is entirely fair to say that all vendors wash their hands and say it is...
By M Griffin on 13 October, 2009 - 9:35 pm -
In response to various posts: I was aware of the Sydney Morning Herald report, but that was one of...
By M Griffin on 13 October, 2009 - 8:45 pm -
In reply to Dilip: Standard routers and firewalls can help somewhat with older types of worms, or...
Hello Michael,
Thank you for posting this as I am trying to keep some kind of log on incidents...
And here
...
We are also a 24x7 manufacturing unit having three standalone SCADA running on Windows platform. I...
By Andrey Romanenko on 13 October, 2009 - 8:30 am -
Hello,
I agree with Michael's ideas on the replacement of the bridge with a more robust OS and...
By M Griffin on 13 October, 2009 - 3:06 am -
In reply to RK Sastry: I can imagine a number of ways to improve your system. However the fact that...
I am also interested in knowing the details about this case. In our installation, the SCADA/PLC...
need help ASAP
Is it possible to use any RS232 to TCP converter or should I use a specific converter for Modbus?
New Replies:
By Harvard on 15 October, 2009 - 11:27 am -
I use a B&B ESP901 Single Port RS-232/422/485, as an example, and it can be used with any...
By Fred Loveless on 15 October, 2009 - 10:04 am -
Modbus over TCP is what you get when you use a straing serial to ethernet converter. This is...
RTU / TCP mapping
New Replies:
By M Griffin on 14 October, 2009 - 6:34 pm -
In a typical Modbus RTU to TCP gateway the data stays the same. It's just the wrapper around the...
By Fred Loveless on 14 October, 2009 - 2:32 pm -
Yes it will remain the same. The address structure is exactly the same....
Abb station does not get "enter" command
Customer has an old (30+yr) system with Cutler Hammer D800 Message Displays and needs software.
Vijeo and windows xp sp3 wont play nice.
New Replies:
By Chimwana on 13 October, 2009 - 9:32 am -
Hello Cliff would you please send me the solution as well my address is chimwana [at] gmail.com...
Can anybody told me how to tune Baldor Linear motor .
Addressing patterns for Quantum Digital Output Module
We need to understand how works AND voting for 2 channels in a relay module of 3500 system.
Need a PLC that runs on 12 volts and supports IEC 1131-3 Structured Text.
New Replies:
Beckhoff has a large range of controllers that use their Twincat IEC 6-1131 software, allow you to...
Does TwinCAT have Function Blocks for TCP/IP?
Using an old DOS program that relies on serial ports on a new PC without one.
New Replies:
If you want to print reports from the DOS program you can play with network printers assignments...
I am Having a program back up of device XBT-PM 027110. when I am trying open this with XBT L100 ver 4.2 then it is saying it is not XBT L file
Interested in anyone's experience with Alarm Notification Software
New Replies:
Thanks to all who responded to my post.. the comments were very helpful...
Operate MODSOFT under Vista.
New Replies:
By keberharter on 7 October, 2009 - 7:52 am -
Without a lot of grief MODSOFT will not run under Vista. Even if you get it to run downloading...
(Originally posted Tue, 25 Aug 1998) I am interested if anyone in the group has any specific reasons why they are still buying PLCs and not PC based controllers.
New Replies:
By moosty on 7 October, 2009 - 3:51 am -
Windows is not stable at all, there is an article in the link below:
...
Comparison
New Replies:
By Mohammad on 7 October, 2009 - 3:21 am -
all products from PAS passed away from our company due to lack of support and lack of resources...
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