Pro-Face LS system Area - PLCS.net

Marshy · August 24th, 2007, 04:00 AM

Hi,

I need to do a mod to a pro-face project I didn't create, the GP is a handheld/touchscreen model - GP2400.

I got side tracked on to how the programmer changes screen. For some reason he/she attached a T-tag to a button when pressed, this set an LS2301 momentary, this in turn triggered a W-Tag which wrote a 3 in in LS0008.

It took a while to find out about LS0008 I'm only assuming that a value written to this area changes the screen? The manual I have talks about the system area (LS0000 - LS0020) but doesn't give me any details on it. Can anyone help me with this?

Does anyone have any ideas on why the programmer has opted to change screens this way instead of a function tag?

Thanks in advance

SLC_Integrator · August 24th, 2007, 08:59 AM

They probably either couldnt find the navigate buttons or thought they would be super clever and noone would figure it out.

The well-known programmer job security method!

s7xp.com · August 24th, 2007, 02:00 PM

In the system setup of the proface panel the ls numbers are connected to a memory area in the plc. When you change the value of the eigth integer in the plc the display changed to this screen number if exist.

August 24th, 2007, 04:00 AM	#1
Marshy Member Join Date: Apr 2007 Location: Bath,UK Posts: 211	Pro-Face LS system Area Hi, I need to do a mod to a pro-face project I didn't create, the GP is a handheld/touchscreen model - GP2400. I got side tracked on to how the programmer changes screen. For some reason he/she attached a T-tag to a button when pressed, this set an LS2301 momentary, this in turn triggered a W-Tag which wrote a 3 in in LS0008. It took a while to find out about LS0008 I'm only assuming that a value written to this area changes the screen? The manual I have talks about the system area (LS0000 - LS0020) but doesn't give me any details on it. Can anyone help me with this? Does anyone have any ideas on why the programmer has opted to change screens this way instead of a function tag? Thanks in advance

August 24th, 2007, 02:00 PM	#3
s7xp.com Member Join Date: Jan 2007 Location: Rotterdam Posts: 151	In the system setup of the proface panel the ls numbers are connected to a memory area in the plc. When you change the value of the eigth integer in the plc the display changed to this screen number if exist. __________________ S7XP Manager - The tool for Step 7 projects (Trending - Logging - Monitoring - Exporting - DB Initialize) V2.21 supports troublefree upload of "actual values" from DBs

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August 24th, 2007, 08:59 AM	#2
SLC_Integrator Member Join Date: May 2007 Location: Salt Lake City, Utah Posts: 415	They probably either couldnt find the navigate buttons or thought they would be super clever and noone would figure it out. The well-known programmer job security method!

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