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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
Jacquin's Postulate on Democratic Government:
No man's life, liberty, or property are safe while the
legislature is in session.
No man's life, liberty, or property are safe while the
legislature is in session.
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I'd like to pull data from the Telemecanique Zelio Logic Relay.
New Replies:
By chud on 6 November, 2009 - 1:15 am -
If you want to use modbus you must buy a modbus expansion unit to plug on the side of the zelio...
If you need a Modbus and OPCServer converter, check out the FieldServer OPCServer from...
By DanMuller on 5 November, 2009 - 8:47 am -
I would be surprised if you find a freeware server that will do the job. If the one you have is not...
Thanks Wassim for your response,
I regret to inform you that the link you posted is reported as...
By Wassim Daoud on 30 October, 2009 - 3:06 pm -
Try this OPC Server... and let me know how it goes
...
Whenever I start Simatic Manager, a message windows "server busy" always pop out.
Spurious diagnostic alarms from MKV panel
need to scale down the voltage in to 0 - 9 for running the motor in safe side
New Replies:
By M Griffin on 2 November, 2009 - 2:07 pm -
The normal method of doing this is to use a signal conditioner module with a DC input and a DC...
Any demo-software available?
Is there a limit to how many onscreen controls Intouch 9.5 can have?
Want to replace my DR Seufert MXT Graphics Server with a Linux PC
I need ideas for my project on Automated Control of Manufacturing Systems
What is the advantage of using duplex type RTDs in HV Motor protection
New Replies:
By Phil Corso on 25 October, 2009 - 8:28 pm -
Kunal... typically, RTD's used to monitor motor temperature are embedded in the winding slot. Thus,...
By Carl on 25 October, 2009 - 3:10 pm -
Without knowing the application of High Voltage motor protection, let me state some basics of...
controlling a 220v motor from siemens s5 100 u plc
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...
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....
We have LANNER & SIERUG-C SoftAS Controllers for our Captive Power Plants. We are forced to buy SIERUG-POWER as offered by Siemens Gurgaon.
New Replies:
Rahulji,
His problem is frequent migration.
When did u had installation? Doesn't they commit...
Parashari Ji,
I would suggest instead of buying another problematic controller better go for...
Abb station does not get "enter" command
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?
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