James_NZ
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Posts posted by James_NZ
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I would like to be able to lock a PLC so that no program or os of any sort can be read/written.
The purpose would be to stop a malicious coder over-writting a program with a similar 'buggy' version application or messing with the current os version.
Is there, or is it possible to have a passworded upload/lock on the hardware some how?
Cheers in advance.
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For the record, I was aware that it was "possible", but it's not really what I would consider a robust solution, partcularly when advising another person to do this. Who is that person going to blame if it gets them into a mess?
FYI, Having the second unitronics IDE open is an awesome time saver.
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Hi,
You can check the memory dedicated to FB (8kB total) in VisiLogic > View menu > FB Information > RAM allocation.
In any case, the program don't need to "crash".
Which version of VisiLogic you're working?
What exactly happens, when the software "crashes"? Is thhere any specific message?
Can you send the print screen of the "crash" mesage and your application ot supplrt@unitronics.com? And, of course the softwasre version.
The FB Memory Alloc is: Free Space 27,958; FB's 80,924; Data Table's 1,224; User Font's 20,966.
I think the problem is the ladder memoery: Free Space 172; Ladder STL 130,900
Is there anything I can do?
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Hi, Thanks for your reply.
Crash means a couple of outcomes.
#1 The program ends by a pop-up window stating the Unitronics OPLC IDE has stopped working.
#2 The program hangs on the Ladder compile at 99% and when I click abort a pop-up window appears as per #1 stating the Unitronics OPLC IDE has stopped working.
The follow details are were obtained from the details part of to pop-up window when #2 occured.
I have used 8.6.3 & 9.3 with the same results. If you would like I can post a youtube video?
Problem signature:
Problem Event Name: APPCRASH
Application Name: VisiLogic.exe
Application Version: 9.0.0.1
Application Timestamp: 4d296551
Fault Module Name: ntdll.dll
Fault Module Version: 6.1.7600.16695
Fault Module Timestamp: 4cc7ab44
Exception Code: c0000005
Exception Offset: 000569aa
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 1033
Additional Information 1: 9624
Additional Information 2: 96242f545adeb2edbd476577475dd7ea
Additional Information 3: a293
Additional Information 4: a293d9a886af6bb09ce0c7c14b37e9f5
Read our privacy statement online:
http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409
If the online privacy statement is not available, please read our privacy statement offline:
C:\windows\system32\en-US\erofflps.txt
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I have a large Visilogic project running on the 290Mono hardware.
When I compile my lastest code version Visilogic crashes consistantly when it attempts to complie the ladder. The difference between this version and the previous is really only the addition of two further Protocol Send FB's. When I disable or delete any of the larger Protocol Send FB's the code will compile. I seem to have reached a limit to the number of Protocol Send blocks allowed or the maximum number of Protocol Send message lines.
Can someone please tell me what the maximum numbers might be?
[edit] Sorry, the problem seems to be that the new version exceeds the maximum allowed ladder memory space.
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Hi There,
The application I'm editing has exceeded the program memory capacity.
The PLC is a 290 monochrome running OS 5.04 B20.
When downloading to the controller I get a warning stating that:
"The size of the project is preventing the upload data from being downloaded. Do you want to Continue? [Yes/No]"
I chose Yes.
I then see:
"This project exceeds the program memory capacity for the PLC.
Refer to the Event Log Tab for details."
If I view the event details I see what I assume to be the consumed amount of memory?
When I go to Build > Project Memory Allocation, I get the same two resulting messages as when downloading.
Connection > PLC Flash Memory Allocation proves me some information regarding free space but nothing is completely depleted.
Something needs to be reduced in size, my questions is how do I find what it is and by how much?
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Thanks for your help everyone.
Some very handy tips.
James
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Hi All
Is it possible to have two or more projects open for editing at the same time.?
For example, I can use visidiff to find differences but since I'm only allowed a single project open it's impossible to copy and paste the differences from one project to another.
Have I missed how to do this or is it not possible?
It would speed my job up a lot.
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Hi Everyone
This question is open to anyone.
I was wondering if there's an elegant solution to compare two (almost exact) sets of tables or operands.
I'd like to see where the mismatches are between two files.
How does everyone else do this?
James
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Sorry its taken a while for me to get back.
We are using the unidownloader for technicians in the field so we are able to operate ok.
The blank .dvi application works no problems with OS5.04B18 & B20.
The issue only appears with our application on both OS5.04B18 & B20.
The issue does not appear when we make a unidownloader file with the troubled dvi in either OS.
Therefore I think the problem may be somewhere in our application, but why do both the unidownloader and visilogic work?
I have inherited this code but I am more familiar with it now. Having said that I cannot solve this issue.
What are your thoughts about how to go about solving it?
It’s not urgent but we'd like to solve it as remoteaccess is our primary tool for technicians.
Kind Regards
James
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That works well; I'll make a habit of opening files that way.
However I was hoping someone would point be to somewhere in the project properties or similar.
It's still pretty average to be unable to confirm exactly which version I have open somewhere in the program.
I'd like to see a path and file name added somewhere, especially considering how easy it would be.
Thanks for your help TM
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Hi everyone
I have one simple question that I'm having trouble finding the the answer to, so at the risk of sounding like a newbie I thought I'd ask in here.
How do I tell the file name of the current project loaded in visilogic (9.0.1)?
My trouble is that the file name and/or path are condensed with the ~ character.
Open question to anyone and obviously not an urgent matter.
James
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Hi guys - I need a little help.
I would like to use the Numeric to bit (Vector function in VisiLogic) in the U90 environment.
Have I missed finding it or does anyone know if there is a way to implement it?
Thanks
James
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What was the outcome of this?
I have a similar problem.
Thanks
James
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Thanks for the help.
I already had the lastest version OS but checked again anyway, I then attempted to download the application using Remote Access with the following communication parameters:
- Baud rate - 57600
- Time out - 6 sec
The download failed at 91% as before.
It seems as if the controller was resetting itself twice, and I lost communication on the second reset.
I created a UniDownloader UDC file with the application only (no o/s).
Then downloaded the UDC file to the PLC - it worked.
I did this to two controllers with the same results each time.
I am happy its working but should it work with remote access?
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We are having a few issues D/Ling a piece of our code to the vision 290 PLC's.
We have OS5.04(B13) on the PLC which matches the OS5.04 (we not sure of build match though) the code uses.
It gets to 91% via Serial or TCP/IP and then looses its connection.
We have tried using Visilogic 9.01, Remote access 9.01 and remote access 6.01 with the same results.
Its D/Ling a piece of our code using OS4.72(B26) well with no problems.
We also have a PLC that won’t respond to the tap trick and stays loading in Boot Strap Mode (I suspect due to the above problem).
We can get the info about its OS etc from the PLC but it will not DL or communicate more than that.
Does anyone have any ideas – we are getting stuck fast.
Lock a PLC Unit
in Vision & Samba PLC + HMI Controllers & VisiLogic Software
Posted
Anyone?