Field help (RNWVAL) 

This field is used only when the Concession management has been defined at the context level as being based on the Renewalmode.
The renewal value is, in principle, automatically determined by application of the update coefficient at the depreciation base of the plan that manages the industrial depreciation and this field displays 0. The updated amount of the depreciation base displayed at the level of the provision plan for renewal.
You can enter the provisional replacement value of the asset in which case it is considered as being forced. When this is forced, the value is valid only for the current fiscal year, and the update coefficient applies to future fiscal years.
 
SEEINFO Even when forced, this value is automatically updated upon renewal when the  UPDRNWVAL - Renewal upper limit (AAS chapter, CCN group) parameter is set to Yes and a variance exists between this value and the depreciation base on the amortization expense plan of the renewing asset.