Эквивалентный код:
Код:

$S = Get-Date -UFormat "%d_%m_%Y_%H-%M"
$p = 'DESIGNER','/S pab-asu-1c8.puma.com\zarpnew','/N backup','/P 000000','/DisableStartupMessages',"/Out Z:\buh2014\z2015\ZUP_Log_$S.log","/DumpIB Z:\buh2014\buh2015\ZUP_$S.dt"
$1c8 ="C:\Program Files (x86)\1cv82\common\1cestart.exe"
&$1c8 $p