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Search: Posts Made By: Friedrich Haase
Forum: LIVE PLC Questions And Answers January 17th, 2005, 06:23 AM
Replies: 14
Views: 4,914
Posted By Friedrich Haase
Moin all, instead of using an IEC 61131-3...

Moin all,

instead of using an IEC 61131-3 interpreter you can have compiled code on your standard PC or PC104 or else.

Look at www.61131.com
There is a complete programming environment. Free...
Forum: LIVE PLC Questions And Answers January 17th, 2005, 06:12 AM
Replies: 5
Views: 3,299
Posted By Friedrich Haase
Moin Tarar, moin all, practically all PLC...

Moin Tarar,
moin all,

practically all PLC programming goes to IEC 61131.

For your education you could use OATs.
www.61131.com

regards
Friedrich Haase
Forum: LIVE PLC Questions And Answers December 23rd, 2004, 11:47 AM
Replies: 14
Views: 2,084
Posted By Friedrich Haase
Moin all, just as a tiny completion. There...

Moin all,

just as a tiny completion. There is a functional difference in state diagrams and SFC networks (IEC 61131.)

In state diagrams the actions are usually part of a state. When a state...
Forum: LIVE PLC Questions And Answers December 23rd, 2004, 11:33 AM
Replies: 2
Views: 781
Posted By Friedrich Haase
Moin bone, maybe they used the Microsoft...

Moin bone,

maybe they used the Microsoft FILETIME definition.

<snip MS>
The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. ...
Forum: LIVE PLC Questions And Answers December 23rd, 2004, 10:46 AM
Replies: 3
Views: 822
Posted By Friedrich Haase
Moin Rich1955, I'd really like to review it....

Moin Rich1955,

I'd really like to review it. But I cannot figure out what it is. Ladder? Basic? other?

Friedrich Haase
Forum: LIVE PLC Questions And Answers November 29th, 2004, 01:29 PM
Replies: 5
Views: 5,397
Posted By Friedrich Haase
The textual IEC 61131-3 languages are quite easy...

The textual IEC 61131-3 languages are quite easy to port. Often little more than a copy and paste. I have done this with good success.

But the IEC did not define a standard format to port the...
Forum: LIVE PLC Questions And Answers November 5th, 2004, 02:56 PM
Replies: 9
Views: 1,963
Posted By Friedrich Haase
Moin Txema, moin all, I have used VNC and...

Moin Txema,
moin all,

I have used VNC and PC Anywhere in the past and tried the remote XP desktop recently. I would always choose VNC, even for a much higher price.

Friedrich
Forum: LIVE PLC Questions And Answers October 21st, 2004, 03:28 AM
Replies: 2
Views: 6,507
Posted By Friedrich Haase
Moin drplc, the FESTO FPC 101B use compiled...

Moin drplc,

the FESTO FPC 101B use compiled code. So the chance to reverse engineer it, is very small. And it's less work to design a complete new program.

BTW, as far as I know, the FPC 101 or...
Forum: LIVE PLC Questions And Answers September 17th, 2004, 01:39 AM
Replies: 3
Views: 2,464
Posted By Friedrich Haase
Moin all, don't know how you program your PC....

Moin all,
don't know how you program your PC. If you use C/C++ or Basic you could open a TCP socket and send/receive MODBUS/TCP datagrams. Works fine, is faster and less CPU load.
Forum: LIVE PLC Questions And Answers July 15th, 2004, 02:56 AM
Replies: 3
Views: 944
Posted By Friedrich Haase
Moin dandrate, currently you need to install...

Moin dandrate,

currently you need to install the OATs kernel on another PC (or PC104 or else) to run a PLC kernel which in turn executes the project your are testing.

This way you can develop...
Forum: LIVE PLC Questions And Answers July 13th, 2004, 05:09 PM
Replies: 3
Views: 1,260
Posted By Friedrich Haase
Moin fransancho, moin all, just to get...

Moin fransancho,
moin all,

just to get your feet wet?

If you have a spare PC in the basement, you could use it as your PLC. Even if it is a very old box.

You can get the required IEC 61131...
Forum: LIVE PLC Questions And Answers July 13th, 2004, 04:57 PM
Replies: 41
Views: 6,642
Posted By Friedrich Haase
Moin all, meanwhile we have seen several...

Moin all,

meanwhile we have seen several solutions. I used the problem to show how to program the toggle in all 5 IEC 61131 languages.

Different from my first post I have used a rising edge...
Forum: LIVE PLC Questions And Answers July 7th, 2004, 12:41 PM
Replies: 41
Views: 6,642
Posted By Friedrich Haase
Re: Latched relay?

Here a sample in IEC 61131 ladder diagram. Hope it helps.

Friedrich
Forum: LIVE PLC Questions And Answers June 23rd, 2004, 04:24 PM
Replies: 71
Views: 12,560
Posted By Friedrich Haase
Philosophical Illusion?

Moin AK,

<quote>
Take the binary number 10000000000000000, how "even" is that? 110110000000000000000 is "just as even," to use your terminology. But, in the end one of the divisions (the...
Forum: LIVE PLC Questions And Answers June 23rd, 2004, 10:36 AM
Replies: 19
Poll: More PID?
Views: 2,794
Posted By Friedrich Haase
PID controller

Moin Peter,

I missed your poll, but I am interested. Especially I would like to see how the controllers handle limitations of the control action, anti-integrator wind-up and manual to automatic...
Forum: LIVE PLC Questions And Answers August 24th, 2003, 03:31 PM
Replies: 59
Views: 23,888
Posted By Friedrich Haase
SMC - RSLogix 500 Version

Moin Peter,
moin all,

I am having difficulties getting the link to work.
Goto http://www.deltacompsys.com/out/smc%20slc.rss

Maybe the blank in the filename (%20) is not a good idea.

This...
Forum: LIVE PLC Questions And Answers August 24th, 2003, 11:18 AM
Replies: 2
Iec
Views: 1,005
Posted By Friedrich Haase
Moin rockmastez, moin all, the last number...

Moin rockmastez,
moin all,

the last number 3 in "IEC 61131-3" is not a step number or edition number.

IEC 61131-1+2 PLC hardware
IEC 61131-3 PLC languages
IEC 61131-5 communications
IEC...
Forum: LIVE PLC Questions And Answers August 24th, 2003, 11:10 AM
Replies: 59
Views: 23,888
Posted By Friedrich Haase
old stuff

simulation results - 2
Forum: LIVE PLC Questions And Answers August 24th, 2003, 11:08 AM
Replies: 59
Views: 23,888
Posted By Friedrich Haase
old stuff

simulation results - 1
Forum: LIVE PLC Questions And Answers August 24th, 2003, 11:06 AM
Replies: 59
Views: 23,888
Posted By Friedrich Haase
old stuff

Moin all,

have done some simulations and "programmed" the SMC in ST.

There is nothing new in a Sliding Mode Controller. Non-linear control is old, old stuff. Get any book about non-linear...
Showing results 1 to 20 of 20

 
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