The /R setting assigns the computer's Register Number. It is recommended that each computer on a network have a unique Register Number.
Register Number supports values between 1 and 9999. It is recommended to use Register Numbers below 41 because the Closeout Module supports starting drawer amounts for only Register Numbers 1 through 40.
Has the same effect as the /R startup switch.
Register=# - where # can be any integer between 1 and 9999.