2 Settings Common to the Network ProtocolsCommunication Environment Setup 2-17If you want to change the status of an SNMP v. 3 user:Press [User Settings] → select the user whose status you want to change →press [User On/Off].If you want to edit the context:Press [Context Settings] → edit the context.If you want to add a context, press [Register] to add a new context. If you want to change acontext, select the context you want to change → press [Edit] to change the context. If youwant to erase a context, select the context you want to erase → press [Erase].A context named 'NULL' is registered by default. The 'NULL' context cannot be deleted, and is notdisplayed on the Context Settings screen.