I'm trying to write the use of O9000 with a variable of 6 IN my program to have it set the variable automatically, instead of having to hit e-stop, change it, and then run. Is there a way to do this? I already tried a pass thru command line of "#[9000]=6" but ended up getting a error message of "522 Illegal Assignment Var or Value". Kinda stumped here. Any help appreciated. If the variables are Read-Only, how do I enable "write", then at the end of program re-enable "read-only"?