Determine how much memory a program/routine is using? - PLCS.net

markus506 · March 20th, 2017, 12:45 PM

HI everyone,

I am progressing 'reasonably' well in my first project, using a 1769-L24QB1B processor. I have found that I am using about 65% of the PLC's data/tag memory. Is there a way to find a breakdown of each routine/program to see which ones are using how much? Coming from an embedded world, I was able to do this, and my curiosity is piqued, since I don't think i have *that* large of a PLC program.

Thanks

-Mark

JaxGTO · March 20th, 2017, 03:41 PM

If you look at the properties for a a ladder routine it will tell you how many rungs it has.
You might be able to get memory size using a GSV on the routine.

I checked tech support site and according to them there is no way to see the memory of each routine.

Only way I can think of is delete them one at a time and see how much memory you get back.

markus506 · March 20th, 2017, 03:44 PM

Ok, I'll have a look into that. Being an embedded guy, most of my logic routines are in structured text state machines, since that's what I'm familiar with.

March 20th, 2017, 12:45 PM	#1
markus506 Member Join Date: Dec 2016 Location: Fredericton Posts: 9	Determine how much memory a program/routine is using? HI everyone, I am progressing 'reasonably' well in my first project, using a 1769-L24QB1B processor. I have found that I am using about 65% of the PLC's data/tag memory. Is there a way to find a breakdown of each routine/program to see which ones are using how much? Coming from an embedded world, I was able to do this, and my curiosity is piqued, since I don't think i have that large of a PLC program. Thanks -Mark

March 20th, 2017, 03:41 PM	#2
JaxGTO Member Join Date: Apr 2009 Location: Kalieefornia Posts: 499	If you look at the properties for a a ladder routine it will tell you how many rungs it has. You might be able to get memory size using a GSV on the routine. I checked tech support site and according to them there is no way to see the memory of each routine. Only way I can think of is delete them one at a time and see how much memory you get back. Last edited by JaxGTO; March 20th, 2017 at 03:48 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Topics
Thread	Thread Starter	Forum	Replies	Last Post
PV900/1000 memory card	Paully's5.0	LIVE PLC Questions And Answers	21	February 24th, 2011 10:46 AM
TwidoSuite Memory	junior	LIVE PLC Questions And Answers	2	January 25th, 2011 12:21 PM
Adding non-volatile memory to a ControlLogix 5555 controller	cherymax	LIVE PLC Questions And Answers	8	September 19th, 2010 06:04 AM
S7-200 download project from memory carrtridge	ason	LIVE PLC Questions And Answers	5	October 16th, 2006 04:25 PM
SLC 5/03 data loss	andydaoust	LIVE PLC Questions And Answers	1	October 10th, 2002 06:38 PM



This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
*Try our online PLC Simulator- FREE. Click here now to try it.* ---------->>>>>Get FREE PLC Programming Tips

March 20th, 2017, 03:44 PM	#3
markus506 Member Join Date: Dec 2016 Location: Fredericton Posts: 9	Ok, I'll have a look into that. Being an embedded guy, most of my logic routines are in structured text state machines, since that's what I'm familiar with.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)