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IDE debugging a PLC


zros
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I am attempting to debug a script PLC through the IDE. I found a thread from 2014 (see http://forums.deltatau.com/showthread.php?tid=1681) that indicated the you must use a non-numeric name for the buffer instead of a number 0 - 31.

 

1) Is this still true with IDE version 3.1.1.0?

 

When I named my plc buffer to a name, e.g. myplc31, then the download process always throws an error indicating that whatever buffer comes after the 'named' buffer is in use. For example, I re-defined the start of my plc 31 from:

open plc 31
....
close 

to 

open plc myplc31
...
close

and upon either a 'build and download all' or 'download selected file' I get:

Error : ( Preprocessing Error) PLC in use, already auto-assigned : on string ("open plc 4")

This happens regardless of which plc I attempt to rename - it's like the 'myplc31' buffer doesn't recognize the 'close' and when the pre-processer sees the next 'open plc' it fails. If I re-define a different buffer, say, plc 7 to 'myplc7', then this error will be thrown on "open plc 8" since it follows next in the Solution Explore menu tree for the PLC Programs list.

 

This may be a bug or I'm not using alphabetical names correctly to define a PLC buffer. Can anyone lend some insight?

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This is most definitely the result of using the “incremental download” (Download Selected File) on a program edit that was previously by number to a “named” program. By default the “pp_inc_disable.txt” file is empty so the old “numbered” file still exists in PMAC memory – it is not erased.

 

To correct this situation change all programs/PLCs to the named versions that you want and execute a "Clean" and then a full “Build and Download”.

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I tried the rename, clean, build and download all sequence without success. I'm seeing similar results as before.

 

I also created a new plc (one that has never been used in this project) and named the buffer straight away to 'myplc23'.

 

open plc myplc23
..
..
close

 

This also generated the error when I did a 'clean, build and download all' sequence.

 

Just to be clear - it is the buffer name that needs to be an alphabetical name for debugging inside the IDE and not the module name, correct?

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