IEEE 1686 5.1.2.1: User identification and authentication for local and remote access

The IED requires each user, whether accessing locally or remotely, to be identified and authenticated before any protected function is available, with individual credentials managed on the device or through a supported central mechanism; configuration software access to the IED is subject to the same identification and password control (Table 1: 2013's 5.5.3 and 5.5.4 now in 5.1).