Something about Mitsubishi FX2N programming - PLCS.net

flyers · January 11th, 2007, 03:48 AM

Hi guys,

I've just got a software & FX2N mitsubishi PLC today, I'm trying to get familiar with the s/w environment.

1) I'm trying to create a counter and a timer, but I can't find the timer symbol at the top of the software, where it is hiding?

2) I try to program by typing the instruction (like AB ASCII format), Input contact i type LD X0, output I type OUT Y0, but I can't type connter or timer, anyone knows what's the correct code?

Potter · January 11th, 2007, 04:09 AM

In ladder mode use the output symbol (F7).

For the address type the timer or counter you want to use, then a space then the value you want to enter. For example to use counter 3 with a preset value of 5 it would be C3 K5.

In instruction list it would be:
OUT C3 K5

flyers · January 11th, 2007, 04:33 AM

Quote:

Originally Posted by Potter

In ladder mode use the output symbol (F7).

For the address type the timer or counter you want to use, then a space then the value you want to enter. For example to use counter 3 with a preset value of 5 it would be C3 K5.

In instruction list it would be:
OUT C3 K5

Potter,

Thanks a lot, i got it

flyers · January 11th, 2007, 06:16 AM

Hi,

1) May I ask, how can I create another subroutine, referring to the attached picture, I've a MAIN routine, I want to add another Alarm routine.

2) Do I need to use a JUMP to subroutine if I have 2 or more routines? (AB RSLogix 500 needs that).

Thank you.

504bloke · January 11th, 2007, 06:22 AM

Its not possible.

Confusing huh! I love GX Developer

flyers · January 11th, 2007, 07:36 AM

Quote:

Originally Posted by 504bloke

Its not possible.

Confusing huh! I love GX Developer

Huh!!? You serious? Even Micrologix 1000 got diff subroutines assigned.

So I have to chunk the few hundred lines of code in a main ladder only??

Potter · January 11th, 2007, 07:42 AM

Quote:

Originally Posted by flyers

Huh!!? You serious? Even Micrologix 1000 got diff subroutines assigned.

So I have to chunk the few hundred lines of code in a main ladder only??

He is.
If I could change one thing about GX Developer that would be it.

flyers · January 11th, 2007, 08:12 AM

Quote:

Originally Posted by Potter

He is.
If I could change one thing about GX Developer that would be it.

OMG...Brilliant idea by the Jap!

This is apply to all Mitsubishi PLC or the software limitation?

Steve Etter · January 11th, 2007, 10:40 AM

Flyer/Potter,

Actually, it is the CPU that limits you from using multiple programs. If you were to use a Q01 series (or higher), you can. The software itself (while certainly not the most user-friendly out there) is not your limiting factor.

Steve

flyers · January 11th, 2007, 11:27 PM

Quote:

Originally Posted by Steve Etter

Flyer/Potter,

Actually, it is the CPU that limits you from using multiple programs. If you were to use a Q01 series (or higher), you can. The software itself (while certainly not the most user-friendly out there) is not your limiting factor.

Steve

Steve, thanks for your information, you mean this limitation apply to all FX2N plc, right?

After using Mitsubishi & Yokogawa PLC software, I still very much in love with AB!!

Marc · January 12th, 2007, 05:12 AM

Yes,

Unfortunately it applies to all f series processors.

Subroutines in the q series not sure about the a series.

Marc

Steve Etter · January 12th, 2007, 06:26 AM

While I can't say definitively, I believe the Q series is the only one that features subroutines. Having worked with many of the A series as well, I have never seen them there, either.

Steve

panic mode · January 12th, 2007, 07:08 AM

Q, QnA, QnAS allow creating multiple program files.
other CPUs don't (A, FX). working on A series controller and
18000 steps, all in just one file sure makes you curse those who
didn't think of possibility of spitting it up...

Goody · January 12th, 2007, 08:55 AM

A sort of way I have found for splitting up subroutines - or for that matter different parts of the program is by putting statements in the left hand margin.
If these are quite verbose, it actually appears to split the left bus line and leaves subroutines and routines seperated from the rest of the program.

As you then scroll down you can see where one section ends and another starts

Marc · January 13th, 2007, 09:26 AM

You can also create a subroutine (even though it is still in the main program) by using an S coil. When the S coil is true, anything after the STL instruction that matches that coil will execute till you reach the next RET statement.

ie out S5
STL S5
RUNG
RUNG
RUNG
RUNG
RET

The rungs between STLl5 and RET will only execute when S5 is true, S5 can be anywhere in the program, not just above STL l5.

(NOTE, outputs and data will remian in the last state the subroutine was scanned unless turned off in another section of code so be careful, I make the last rung of the STL (right before the RET a reset of all data and outputs that should not retain "last scanned states"

But they are still in the main program so it doesn't really split them up visually for you like a subruitine in RSlogix

They are handy though

Marc

January 11th, 2007, 03:48 AM	#1
flyers Member Join Date: Sep 2006 Location: Amk Posts: 293	Something about Mitsubishi FX2N programming Hi guys, I've just got a software & FX2N mitsubishi PLC today, I'm trying to get familiar with the s/w environment. 1) I'm trying to create a counter and a timer, but I can't find the timer symbol at the top of the software, where it is hiding? 2) I try to program by typing the instruction (like AB ASCII format), Input contact i type LD X0, output I type OUT Y0, but I can't type connter or timer, anyone knows what's the correct code?

January 11th, 2007, 06:22 AM	#5
504bloke Lifetime Supporting Member + Moderator Join Date: Jan 2005 Location: West Ssx Posts: 2,620	Its not possible. Confusing huh! I love GX Developer __________________ Regards Dave "When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity." Albert Einstein (1879-1955)

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January 11th, 2007, 04:09 AM	#2
Potter Member Join Date: Nov 2004 Location: Nottingham, England Posts: 77	In ladder mode use the output symbol (F7). For the address type the timer or counter you want to use, then a space then the value you want to enter. For example to use counter 3 with a preset value of 5 it would be C3 K5. In instruction list it would be: OUT C3 K5

January 11th, 2007, 06:16 AM	#4
flyers Member Join Date: Sep 2006 Location: Amk Posts: 293	Hi, 1) May I ask, how can I create another subroutine, referring to the attached picture, I've a MAIN routine, I want to add another Alarm routine. 2) Do I need to use a JUMP to subroutine if I have 2 or more routines? (AB RSLogix 500 needs that). Thank you.

January 11th, 2007, 10:40 AM	#9
Steve Etter Lifetime Supporting Member + Moderator Join Date: Apr 2002 Location: Morristown, TN Posts: 753	Flyer/Potter, Actually, it is the CPU that limits you from using multiple programs. If you were to use a Q01 series (or higher), you can. The software itself (while certainly not the most user-friendly out there) is not your limiting factor. Steve

January 12th, 2007, 05:12 AM	#11
Marc Member Join Date: Jun 2004 Location: Nashua, NH Posts: 424	Yes, Unfortunately it applies to all f series processors. Subroutines in the q series not sure about the a series. Marc

January 12th, 2007, 06:26 AM	#12
Steve Etter Lifetime Supporting Member + Moderator Join Date: Apr 2002 Location: Morristown, TN Posts: 753	While I can't say definitively, I believe the Q series is the only one that features subroutines. Having worked with many of the A series as well, I have never seen them there, either. Steve

January 12th, 2007, 07:08 AM	#13
panic mode Member Join Date: May 2003 Location: Toronto, Canada Posts: 1,961	Q, QnA, QnAS allow creating multiple program files. other CPUs don't (A, FX). working on A series controller and 18000 steps, all in just one file sure makes you curse those who didn't think of possibility of spitting it up...

January 12th, 2007, 08:55 AM	#14
Goody Member Join Date: Apr 2002 Location: Huddersfield W Yorks UK Posts: 978	A sort of way I have found for splitting up subroutines - or for that matter different parts of the program is by putting statements in the left hand margin. If these are quite verbose, it actually appears to split the left bus line and leaves subroutines and routines seperated from the rest of the program. As you then scroll down you can see where one section ends and another starts

January 13th, 2007, 09:26 AM	#15
Marc Member Join Date: Jun 2004 Location: Nashua, NH Posts: 424	You can also create a subroutine (even though it is still in the main program) by using an S coil. When the S coil is true, anything after the STL instruction that matches that coil will execute till you reach the next RET statement. ie out S5 STL S5 RUNG RUNG RUNG RUNG RET The rungs between STLl5 and RET will only execute when S5 is true, S5 can be anywhere in the program, not just above STL l5. (NOTE, outputs and data will remian in the last state the subroutine was scanned unless turned off in another section of code so be careful, I make the last rung of the STL (right before the RET a reset of all data and outputs that should not retain "last scanned states" But they are still in the main program so it doesn't really split them up visually for you like a subruitine in RSlogix They are handy though Marc

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