Magelis

[Carol 0]

Hi, how should I declare variables in Vijeo-Designer for an Omron CJ1M? The HMI will be connected to the mini-peripheral port. I thought I must use Sysmac FINS (SIO) - CS1 Link (See 1driver.jpg) When I want to declare a new variable, I must choose from a list (see 2address.jpg) I don't know what all these letters stand for, so if anyone have some pointers for me, Carol Edited 31 Jan 2009 by Carol

[PdL 71]

The letters stand for the various memory areas of the Omron CPU. These are the same areas that are defined for your variables in the symbol list with CX-Programmer. W=Work Area > Commonly used for local variables A=Auxilary Area > Commonly used for CPU diagnostic data, clock, scan time, error flags etc H=Holding Area > Commonly used for bit-accessible data that needs to retain value on power cycle T= Timer flags/PV C= Counter flags/PV D= Data Memory Area > Word oriented data, retains value on power cycle E0-E9/EA-EC > Extended Memory banks TK= not sure IR = Internal Relay > Usually for physical digital and analog I/O as well as internal variables DR= not sure Hope this helps!

[Carol 0]

Hi PDL, thanx for the explanation. We're using for the discrete signals addresses up from 50.00. These are called "IO-bit" by Omron, but they aren't in the display variable list. On the other hand in the display variable list is a type "IR" and this isn't to find in the Omron list. Is it save to assume that the right choice would be "....", because there's a "W" in both lists? Making any sense...? Carol

[PdL 71]

Hi Carol, Discrete input area for CJ1M series is called CIO (Common Input Output) area, also referred to as IR (Internal Relay) area for other series like CQM1H, C200. I think you can be sure these two types are the same. Of course W area will work too.

[scottmurphy 1]

Hi Pdl, IR = Index Register DR = Data Register. These are used for any 'indirect addressing' & Table data processing instructions. Can be quite useful when using For/Next loops/table data instructions etc.

[PdL 71]

Thanks for the correction Scott! It is strange the driver doesn't offer CIO area.