.LAD extension

baxo · Mar 4, 2009

Hello!
Exist anybody who know which PLC programming softver can open a file with .LAD extension?

OZEE · Mar 4, 2009

Do you know what kind of PLC?

Mickey · Mar 4, 2009

Controlmicrosystems's "TelePace" software uses that extension.

http://www.controlmicrosystems.com/

PLCRookie · Mar 4, 2009

I believe that is the extension for the ladder program on Automation Direct PLC's.

bernie_carlton · Mar 4, 2009

it's not AutomationDirect though I was sure that I had seen that before. I scaned my work computer and have no files with that extension.

Ken Roach · Mar 4, 2009

I'm not saying for sure what you have, but *.LAD was the ladder file for ICOM AI-2 software for the PLC-2 controllers.

An AI-2 project consists of more than just the LAD file.

.ADR Index for description text.
.CFG Program Configuration Data (plc2ll0.cfg)
.CNT Table of contents
.DEL Deleted unused instruction descriptions (ASCII delimited format)
.DSC Instruction description text
.ERR Error message storage
.IOM I/O configuration file
.LAD Ladder Logic
.LIB Blocks of rungs saved to disk
.PRF Program revision history file
.RPD Rung/page titles file
.RPI Index for rung/page titles
.SCR Custom data monitor screen
.RDT Report Header
.SYM Index for description text
.XRF Cross reference file
.XRI Index for cross reference file
.001 Ladder backup file (oldest)
.002 Ladder backup file (next oldest)
.003 Ladder backup file (highest number is most recent)

PLCRookie · Mar 4, 2009

bernie_carlton said:
it's not AutomationDirect though I was sure that I had seen that before. I scaned my work computer and have no files with that extension.

You are correct Bernie. AD file is .LDA.
My dyslexia always gets the best of me.

ATU · Mar 4, 2009

GE Logicmaster (DOS version) had a .LAD file.

Which you can import into Directsoft.

Steve Bailey · Mar 4, 2009

GE Fanuc Logicmaster software for Series One, Series Three, Series Five and Series Six used .LAD as the file extension for the ladder logic files. As others have mentioned, they are not the only brand to use that extension, but if that's the only file you have, it's enough for those GE Fanuc models.

Post it here and we can try to open it and see what works. You will have to rename it with a different extension. This forum won't accept attachments with a .LAD extension.

Harsha · Mar 5, 2009

Hi,
It might be a PLC Ladder Logic of EZ PLC, from EZ Automation, a division of AVG Automation.
In the previous years, For the PLC Ladder logic when we save on the hard disk the PLC program used get saved with .lad, .isa, and few other extensions along with .LAD.
Goto www.ezautomation.net or you can call on their Toll free No. - 001 877 774 3279.

Have a try ... I am not 100% sure.

Harsha BS

baxo · Mar 5, 2009

Thanks!
I have saw the logicmaster, really this is the program which save the file as .LAD

ATU · Mar 5, 2009

Post the file and someone should be able to determine the PLC type from the file. I think that information is embedded in the file. As Steve said, post it with a different extension, like .plc.

Are you trying to replace the PLC or troubleshoot it?

CB_182 · Mar 5, 2009

is it not honeywell/IPC ?

ah no, thats ldr, sorry

Stephen Luft · Mar 6, 2009

It looks like you will have to be more specific with your search, in that we also use .lad as an extension for our programming software.

tricky4a · Mar 10, 2009

I remember many years ago, I used a PLC with .LAD extensions, there was also another extension that went with it which was held in the same directory and I believe it was for an IMO Nexus, blue box. The software was Caps6 which I am sure is still available and free to boot. It was also what I learnt on, so hence why I can remember it!

.LAD extension

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