GO Set - on ABB

Hello, I am trying to make pressure data table for the spot welding . As I am using ITV module i have to setup the count number to GO when applying schedule. when i Have loaded this program. i am getting following error.:

Assignment target type signalgo is not value type. Could anyone tell me what needs to be changed from the Following program?

PROC SetGunPressure(dnum PressureData)

IF PressureData=1 THEN goPressureITV1:=500;

ELSEIF PressureData= 2 THEN goPressureITV1:=1000;

ELSEIF PressureData= 3 THEN goPressureITV1:=1500;

ELSEIF PressureData= 4 THEN goPressureITV1:=2000;

ELSEIF PressureData= 5 THEN goPressureITV1:=2500;

ELSEIF PressureData= 6 THEN goPressureITV1:=3000;

ELSEIF PressureData= 7 THEN goPressureITV1:=3500;

ELSEIF PressureData= 8 THEN goPressureITV1:=4000;

ELSEIF PressureData= 9 THEN goPressureITV1:=4500;

ELSEIF PressureData= 10 THEN goPressureITV1:=5000;

ELSEIF PressureData= 11 THEN goPressureITV1:=5500;

ELSEIF PressureData= 12 THEN goPressureITV1:=6000;

ENDIF

ENDPROC

 PROC SetGunPressure(dnum PressureData)
         IF PressureData=1 THEN setGO\sDelay:=0.5, goPressureITV1, 500;
         ELSEIF PressureData= 2 THEN setGO\sDelay:=0.5, goPressureITV1, 1000;
         ELSEIF PressureData= 3 THEN setGO\sDelay:=0.5, goPressureITV1, 1500;
         ELSEIF PressureData= 4 THEN setGO\sDelay:=0.5, goPressureITV1, 2000;
         ELSEIF PressureData= 5 THEN setGO\sDelay:=0.5, goPressureITV1,2500;
         ELSEIF PressureData= 6 THEN setGO\sDelay:=0.5, goPressureITV1, 3000;
         ELSEIF PressureData= 7 THEN setGO\sDelay:=0.5, goPressureITV1, 3500;
         ELSEIF PressureData= 8 THEN setGO\sDelay:=0.5, goPressureITV1, 4000;
         ELSEIF PressureData= 9 THEN setGO\sDelay:=0.5, goPressureITV1, 4500;
         ELSEIF PressureData= 10 THEN setGO\sDelay:=0.5, goPressureITV1, 5000;
         ELSEIF PressureData= 11 THEN setGO\sDelay:=0.5, goPressureITV1, 5500;
         ELSEIF PressureData= 12 THEN setGO\sDelay:=0.5, goPressureITV1, 6000;
         ENDIF
         
     ENDPROC

It worked. Thank you. Here is the new code after the modifications.