How to use GO or AO as a variable in rapid?

Hello everyone
I have a question...
How to use GroupDigital as a variable in rapid program?

this is my code,is it correct?

MODULE MainModuleaaa
VAR speeddata Work:= [100,20,5000,1000];
PERS tooldata tPen :=[True,[[0,0,192],[1,0,0,0]],[0.001,[0,0,0.1],[1,0,0,0],0,0,0]];
PERS wobjdata wobj10 := [FALSE, TRUE, "", [[0, 400, 0],[1, 0, 0, 0]],
                        [[0, 0, 0],[1, 0, 0, 0]]];
PROC Main()
ConfL \Off;
ConfJ \Off;


MoveL [[800,-400,[b]GO1[/b]],[0,0,1,0],[0,-1,-1,0],[9E9,9E9,9E9,9E9,9E9,9E9]],Work,z10,tPen\WObj:=wobj10;


ENDPROC
ENDMODULE

the GO1 is GroupOutput,MoveL [[800,-400,GO1]....is it correct?if no correct ,how can I use GO or AO as variable for target?
Thankyou for help!

//=============Second day after 1st post ===========================
i try this code:

MODULE MainModule
VAR speeddata Work:= [100,20,5000,1000];
PERS tooldata tPen :=[TRUE,[[535.000,0.000,120.000],[0.707107,0.000000,0.707107,0.000000]],[0.1,[0,0,10],[1,0,0,0],0,0,0]];
PERS wobjdata WObj6 := [FALSE, TRUE, "" , [[0, 0, 0],[1, 0, 0, 0]],[[0, 0, 0],[1, 0, 0, 0]]];
VAR num xPosition;
xPosition := DNGO1;
VAR robtarget p1:=[[xPosition,-360.638,809.490],[-0.035,0.000,0.999,0.000],[0,-1,-1,0],[0,9E9,9E9,9E9,9E9,9E9]];
PROC Main()
ConfL \Off;
ConfJ \Off;
MoveL p1,Work,z10,tPen\WObj:=WObj6;
ENDPROC
ENDMODULE

(DNGO1 is a group output alias name)

but the result failed:
failed message:

Unexpected identifier ':=' identifier

in flexpad

can anyone tell me where is wrong,thank you very much!
//===============I found the solution================
use GOutput(groupSigName)

Quote from Lemster68

The .trans portion of a robtarget must contain the three elements of num data type. So you must declare a num, nZvalue, then assign nZvalue:=GO1;. MoveL 0,0,nZvalue. Of course, I am shortening the Move instruction but I hope that you will still get the point.

Thank you Lemster! tomorrow morning ,when i go to company ,i go to try!i am try to do realtime motion control,but i dont have pc interface or egm option...so i think using GO will be a way!

Quote from Iowan

I've never tried the direct entry method...
I usually do something like:

Code

pTemp.trans.z:=nZvalue;
   MoveL  pTemp...

it seems more professinalll ......thank you!