referencing amplitude in VDLOAD subroutine

"abhishek [email protected] [Abaqus]" <[email protected]> Tue, 12 Feb 2019 10:20:27 +0000 (UTC)
Newsgroups gmane.comp.mathematics.abaqus.user
Message-ID <[email protected]>
Hello respected fellows
I am facing a  problem in defining amplitude in VDLOAD subroutine. I am not able to understand as written in manual ' referencing amplitude', how to reference amplitude in VDLOAD subroutine?
Thank YouAbhishek