Upload or download - PLCS.net

Mohammed zaid · September 2nd, 2023, 05:22 AM

I try to get user application software from cpu which writed using loadder language or any one of IEC languages.
I forget how i can differentiate between upload and download?
i think upload to get program from plc, and download to send the program to plc.
Is that correct?

drbitboy · September 2nd, 2023, 08:15 AM

the meanings of upload and download depend on the make and model of PLC. Which PLC are you using?

A_G · September 2nd, 2023, 11:11 AM

Quote:

Originally Posted by Mohammed zaid

i think upload to get program from plc, and download to send the program to plc.
Is that correct?

This is correct at least for Allen Bradley and Siemens

Zimmer · September 2nd, 2023, 07:08 PM

I am still paranoid about the use of those two terms. About 25 years ago, when I was young and cocky, I was working in a plant that had a Westronics "chart recorder /logger, that displayed all the plant data to the operators. ie it was the total "brains" of the plant.
I took it upon myself (nobody asked me) to get a pc to "talk" to this device. I found an old floppy disc with some dos type software, made up a rs232 lead and congratulated myself in getting it working first time.

I decided how clever, I would be, if I made a "backup" of the recorder,
I obviously got "upload" and "download" mixed up, probably ignored some "overwrite" warning and long story short, 5 seconds later, I had replaced the entire memory of the recorder with my blank file.
The entire plant now had no information, I had no idea where any of the sixty or so instruments were connected, what they were scaled to etc , I had to manually enter each "point" , guess the scaling and ask the operator, do you remember what "point 5 used to be etc etc. The operator had to "blindly" run the plant, the worst two days, I ever had and all self inflicted. lol

KreuzerS · September 4th, 2023, 03:55 AM

Please specify the make and model of PLC you are using so I can advise if upload and download are from PLC or PC perspective.

mk42 · September 4th, 2023, 04:44 PM

Quote:

Originally Posted by Zimmer

I am still paranoid about the use of those two terms.

I try to always include TO and FROM whenever I use upload/download, to try to be clearer: Download to the PLC/Upload from the PLC, etc. If I just say "download the program" there's more room for confusion.

Operaghost · September 5th, 2023, 03:11 PM

Quote:

Originally Posted by mk42

I try to always include TO and FROM whenever I use upload/download, to try to be clearer: Download to the PLC/Upload from the PLC, etc. If I just say "download the program" there's more room for confusion.

Way back in the days of DOS, A-B software used to say "Upload from the PLC" and "Download to the PLC". Later versions they left off the "to" and "from" and there has been confusion ever since. I think that was the ICOM Ladder Logistics software. IIRC 6200 used "Save" and "Restore" instead of upload and download.

OG

Mohammed zaid · September 18th, 2023, 03:50 PM

Modicon quantum type of cpu (140CPU 434 12A)
concept2.6 programming software.

Mohammed zaid · September 18th, 2023, 03:51 PM

Thanks for all.

Timlindz · September 19th, 2023, 08:09 AM

I all ways say Download starts with a D so I remember Download is Dangerous .
Crazy I know but that is the way I remember it.

September 2nd, 2023, 05:22 AM	#1
Mohammed zaid Member Join Date: Jan 2023 Location: Yemen Posts: 17	Upload or download I try to get user application software from cpu which writed using loadder language or any one of IEC languages. I forget how i can differentiate between upload and download? i think upload to get program from plc, and download to send the program to plc. Is that correct?

September 2nd, 2023, 08:15 AM	#2
drbitboy Lifetime Supporting Member Join Date: Dec 2019 Location: Rochester, NY Posts: 7,302	the meanings of upload and download depend on the make and model of PLC. Which PLC are you using? __________________ _ Brian T. Carcich i) Take care of the bits, and the bytes will take care of themselves. ii) There is no software problem that cannot be solved with another layer of indirection. iii) Measurement is hard. iv) I solemnly swear that I am up to no good v) I probably have the highest ratio of forum posts to actual applications in the field (but no longer ∞ ). vi) Hakuna matata. vii) Bookkeeping. viii) But I should be ignored.

September 2nd, 2023, 07:08 PM	#4
Zimmer Lifetime Supporting Member Join Date: Mar 2009 Location: Hello Posts: 98	I am still paranoid about the use of those two terms. About 25 years ago, when I was young and cocky, I was working in a plant that had a Westronics "chart recorder /logger, that displayed all the plant data to the operators. ie it was the total "brains" of the plant. I took it upon myself (nobody asked me) to get a pc to "talk" to this device. I found an old floppy disc with some dos type software, made up a rs232 lead and congratulated myself in getting it working first time. I decided how clever, I would be, if I made a "backup" of the recorder, I obviously got "upload" and "download" mixed up, probably ignored some "overwrite" warning and long story short, 5 seconds later, I had replaced the entire memory of the recorder with my blank file. The entire plant now had no information, I had no idea where any of the sixty or so instruments were connected, what they were scaled to etc , I had to manually enter each "point" , guess the scaling and ask the operator, do you remember what "point 5 used to be etc etc. The operator had to "blindly" run the plant, the worst two days, I ever had and all self inflicted. lol Last edited by Zimmer; September 2nd, 2023 at 07:10 PM.

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September 4th, 2023, 03:55 AM	#5
KreuzerS Member Join Date: Sep 2023 Location: Sacramento Posts: 4	Please specify the make and model of PLC you are using so I can advise if upload and download are from PLC or PC perspective.

September 18th, 2023, 03:50 PM	#8
Mohammed zaid Member Join Date: Jan 2023 Location: Yemen Posts: 17	Modicon quantum type of cpu (140CPU 434 12A) concept2.6 programming software.

September 18th, 2023, 03:51 PM	#9
Mohammed zaid Member Join Date: Jan 2023 Location: Yemen Posts: 17	Thanks for all.

September 19th, 2023, 08:09 AM	#10
Timlindz Lifetime Supporting Member Join Date: May 2015 Location: Chattanooga Posts: 26	I all ways say Download starts with a D so I remember Download is Dangerous . Crazy I know but that is the way I remember it.

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