Control logix L72-download without stoping PLC

sandy5020

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• Mar 10, 2015

• #1

Is there any option to download without stoping the plc as I am working on the uploaded program from an existing control logix system

 

jstolaruk

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• Mar 10, 2015

• #2

Edits can be made online but not a complete download. A download wipes out the last program. What would the CPU execute while the download is occurring. I think you want to look into online editing, quite a bit can be done while the program is running.

 

sandy5020

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• Mar 10, 2015

• #3

Hi,

no I have created some logic in the existing program,,,,,so online edit not possible i guess,,,,, I was able to achieve this in gefanuc plc's as downloading program only.....

 

widelto

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• Mar 10, 2015

• #4

Sandy Check your key position, if in RUN position you can not modify anything. Move it to RUN/PROG position.

 

sandy5020

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• Mar 10, 2015

• #5

hi widelto

its in remote mode only,,,,,

 

cwal61

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• Mar 10, 2015

• #6

you can import a subroutine or a program while online and select import as pending this will allow you to accept changes just as if you did online edits.

 

rkukl

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• Mar 10, 2015

• #7

I have done offline editing on several occasions then connected to existing running program. So two instances of Logix5000 running online and offline with changes. you can now copy offline an paste into online. then compile and run. I typically try to limit the size but have even added programs then pasted code into them. I have not encountered a problem but again i try to limit the size of my copy paste.

 

sandy5020

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• Mar 10, 2015

• #8

when I am connected to control logix L72 plc with my rslogix5000 v20 everything is fine and uploaded

but when i opened ethernet module and clicked on " module info " property i get a popup message saying" Physical module does not match module configured in project"... electronic keying is in "compatible mode"

my question is if download any problem will occur???

thanks
sandy

 

GTUnit

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• Mar 10, 2015

• #9

Change the module configuration in your project to match the module that is installed in the processor. There is no reason NOT to do this.

 

sandy5020

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• Mar 10, 2015

• #10

only the mino revision was different but even when i changed it was displaying the same warning message

 

jtashaffer

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• Mar 10, 2015

• #11

Are you have any connections problems with this unit? I ran in to a similar problem the other day.

 

jstolaruk

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• Mar 10, 2015

• #12

rkukl said:

I have done offline editing on several occasions then connected to existing running program. So two instances of Logix5000 running online and offline with changes. you can now copy offline an paste into online. then compile and run. I typically try to limit the size but have even added programs then pasted code into them. I have not encountered a problem but again i try to limit the size of my copy paste.

Click to expand...

Yes, works good, I've frequently done the same but in the end its still online editing. I think the OP would like to just hit download, and the changed code replaces the running code. Siemen's Step 7, Mitsubishi's Melsoft, and I'm sure a few others works this way.