indexing a1scpu

2 posts in this topic

Hello everybody,

I did a search on this item but with no results, so...


I am programming with GX developer, an a1scpu.

In the program I use the Z and V index register to move some value in D's. I saw dat these Z and V were already in use, ( made by a predecessor,)

so I tried Z1 and V1 instead, but with no succes; I got an error:

Device setting is wrong.The following causes maybe responsible:
An unusable device has been desinated.
Index modification,module specification setting is wrong.
Special function module device,link direct device setting is wrong.

I guess that the a1scpu does not support Z... and V...


Q: Is this the case, or am I doing something wrong?


Many thanks!

Share this post

Link to post
Share on other sites

Posted (edited)

You have an A1S so you only have one V and Z.

Just move your current Z value to a D and mov it back in the end. Also store it your Z value so you can move  it back when this sequence starts again



Edited by Gambit

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now