What is a Parenting Plans? 

During the FDR session, the practitioner will be keeping a record of all agreements that are reached. A draft copy will be sent to both parents shortly after the session. Once both parents are satisfied that it reflects what was agreed, the practitioner will arrange for both parents to sign and date the agreement.

Once signed and dated by both parents, it becomes a Parenting Plan, which is an agreement in good faith, and is not legally enforceable.
While not legally enforceable, a parenting plan could be used as evidence in any future family court proceedings and subsequently be treated as if it were a court order, or parts of it. 

Turning a parenting plan   into court orders

While not legally enforceable, a parenting plan could be made into a court order by consent, making it legally binding and enforceable. This can be done with the assistance of a solicitor or by applying directly to the court.  Below is a link to an application for consent orders Do-It-Yourself kit.