Question of difference between *.tp and *.pc

Hi, toso

Sorry, but you're asking about two different languages. TP program was created for motion and KAREL is backend language of the robot. a lot of internal programs of fanuc robot was written with using KAREL. Everything is depends on your tasks.

Regards,
Scotty

I don't know which is "lighter", but (having done no Karel programming) it seems easier and quicker to modify a motion program via pendant (TP) programs than having to recompile a Karel routine... just my opinion.

Toso,

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You can write motion programs also in karel, so i think that TP program are only to simplify the creation of motion's programs.

For your information if you don't have enough ram memory for making some calculation or etc., you can set buffer size in your TP program or karel program. If your read attentively the Karel reference manual, then you remember note about motion in karel. You can't debug your motion in karel and you should avoid to use motion command in karel for regular programs. It's like a simple rule for fanuc programming. Also as you remember you can mix up background logic in bg program and skip conditions in regular tp program that can help you to make your code less and make work robot controller faster.

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But if the "internal" language of Fanuc is karel, i think karel programs need less "manipulations" then tp programs. (So are more light)

Anyway karel of tp will be translated to machine code. Everything depends on compiler. Maybe karel takes more conditions during running. Also background tp program has priorities where we can run the program with ~8ms(i don't remember exactly) per line. Again different configuration and different content can give you different result. In example some option for welding give you change to assign karel program in header of tp program. It's means that you tp program has some pre-run conditions and rules. But it doesn't means that your program will takes more memory. It's just conditions of start program.
My personal opinion that karel and tp use two different cores for running. TP program include less logical commands, thats means the tp program should works faster and do not spend time for difficult commands. That's why bg program can use 8ms per line.
Also don't forget when you need in karel to declare a variable, initialize the variable .... it takes time and memory. Again when you read some system variables/register/pr you need to check is is the variable initialized. In opposite case you will get exception and your program going down. Always it's very easy to break something but very difficult to make it stable.
Sorry, it's just philosophy and my personal opinion. Looks like I types a lot of words....hope you caught my idea.