Changing welding parameters while welding in Auto Mode FANUC

*************Equipment details*********
Make: Fanuc
Manipulator: Arcmate 100iC/8L
Robot controller : R30iB Plus
Weld Power Source Make : Lincoln
Weld Power Source : Power Wave® R450 Robotic Power Source.
PLC - Allen Bradley - Compact Logix 5380
Communication protocol - Ethernet (PLC -> Fanuc robot controller -> Lincoln Weld Powersource)
*****************END*********************
Can anyone tell me the variables for the weld parameters ?

e.g. I know the variable for Travel Speed i.e. $AWESCH[1,16].$CMD_WSPEED

I want to know the variables for wire feed speed and Trim

Thanks in Advance

I tried changing the value of the variable, but apparently once the welding has started the changed value will not reflect on the robot.

So, is there a way, where I can change the weld parameters while welding?

Quote from dcwelder

Does your Teach Pendant have a button labeled "OTF"? That is the On The Fly button, and if you press this, it will pull up the welding parameters you are using during a weld, and you can change them On The Fly.

Hi thanks for replying , Yes i do have the button but it will be manual right ? like I have to do it manually on the pendant . But is there a way to do it remotly like by a PLC ?

Thats OK, if you get any lead kindly let me know , it will be of great help

THANKS