Industrial communication networks – Wireless communication network and communication profiles – WirelessHART? This International Standard specifies an additional Type 20 communication network to IEC 61158-5-20, IEC 61158-6-20 and a Communication Profile CP 9/2 in addition to IEC 61784-1 CPF 9. This standard specifies the following: ? Physical layer service definition and protocol specification, ? Data-link layer service and protocol, ? Application layer service and protocol, ? Network management, ? Security, ? Communication profile, ? Wireless procedures and ? Gateway.