[?]: CX-PROGRAMMER after Simatic Step7

CX-One, CX programmer, NTST, Syswin ....
Post Reply
alekbeck
Posts: 1
Joined: Fri Mar 27, 2009 12:30 pm
Location: Europe

[?]: CX-PROGRAMMER after Simatic Step7

Post by alekbeck » Fri Mar 27, 2009 12:31 pm

I need some help with my PLC program!
I am having trouble understanding how CX-PROGRAMMER works.
All my PLC knowledge is based on Simatic Step7 and FBD programming.
I have read many guides but I still have trouble understanding the addresses.
The digital inputs address is for example
  • Step7 I 128.0 .. ,
  • Omron 00.00 – 15.15 ?


The digital output address is for example
  • Step7 Q 128.0 .. ,
  • Omron 100.00 – 115.15 ?

When programming in simatic I often use memory’s , for example M0.0.
If the value is INT or REAl I use MW1 ( M0.0 – M1.7) or MD1 (M0.0 – M3.7) .
How do I do this in CX-Programming ?
I’ve found that workbits is from 16.00 – 89.15.
Do I write W16 ?

My biggest problem is handling analog signals.
I am trying to make a program where I regulate the airflow.
In simatic I would scale the 0-10V input signal into 0-100 %.
I would then used a PID self tuner for then to unscale it back to 0-10v.
I have found the PIDAT block but I cant find any information about the parameters.
Could enyone help me with a example ?
The PLC im using is CJ1M

sania
Site Admin
Posts: 1372
Joined: Sat Aug 13, 2005 6:15 am
Contact:

Re: [?]: CX-PROGRAMMER after Simatic Step7

Post by sania » Fri Mar 27, 2009 1:17 pm

alekbeck wrote:If the value is INT or REAl I use MW1 ( M0.0 – M1.7)
mw1(m1.0-m2.7)!!
s7 adresing is base byte,omron-word
s7=mw100(m100.0-m101.7)
omron=100(100.00-100.15)
omron adressing is all-in-one(in,out,memory=0.00-(i think)32767.00)

gigi10
Posts: 42
Joined: Fri Aug 10, 2007 1:18 pm
Location: Europe

Re: [?]: CX-PROGRAMMER after Simatic Step7

Post by gigi10 » Sat Mar 28, 2009 9:45 am

hi alekbeck

CX-Programmer contains very poor dokumentation about instructions - on Omron pages find this manual:
W340-E1-11 (W340 is important, E means english, 11 is version)
This manual is about instructions and memory adressing in CS/CJ plc
For analog cards you need manual number W345-E1-05...

Both (all Omron's) manuals have hundred's pages... :D

enjoy

gigi10

Homeroid_BL
Posts: 259
Joined: Fri Apr 03, 2009 3:24 pm
Location: Bosnia and Herzegovina

Programming OMRON PLC

Post by Homeroid_BL » Sun Apr 05, 2009 8:57 am

Plesa use a proper OPERATING MANUAL adn PROGRAMMING of the Omron PLC you want to use. You will fnd a detailed explanation there. Easy! (not like a Siemens, ugh!)
:)

Post Reply