Platt was sent off after a brawl, for which both clubs have been fined, when Wigan played Featherstone in their cup quarter-final last week.
A one-match suspension means that he will miss the game at Leigh on Sunday, but will be available for Wigan's most difficult fixture for years, against a side who have beaten them heavily twice this season.
Featherstone's Steve Molloy has also been banned for one match for the brawl and his team-mate, Neil Roebuck, sent off later in the game, was given a three-match suspension.
Salford have signed the Australian centre, Greg Austin, on a free transfer from Keighley.
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