I would suggest:
ALTER PROCEDURE [dbo].[PUPD_IngenicoDetials]
@TerminalID [set the correct datatype],
@Simnr VARCHAR(50),
@Location VARCHAR(50),
@Serialnr VARCHAR(50),
@Department VARCHAR(50),
@Functions VARCHAR(50),
@Network VARCHAR(50),
@Version VARCHAR(50),
@Date VARCHAR(50),
@RadicalRef VARCHAR(50)
AS
BEGIN
SET NOCOUNT ON;
UPDATE dbo.mIngenicoDetail
SET Simnr = @Simnr,Location = @Location,
Serialnr = @Serialnr, DepartmentID = @Department, FunctionID = @Functions,
NetworkID = @Network, Version=@Version, DateInserted=@Date
Where TerminalID = @TerminalID
END
GO
SET ANSI_NULLS OFF
GO
SET QUOTED_IDENTIFIER OFF
GO