Disabling and enabling meter configuration options

Limiting configuration options, such as Modbus, webpages, and the display, and providing read-only access reduces the attack surface of the meter.

Prerequisites:

• Open a Security Configuration File in the ION Setup Security wizard

To disable and enable meter configuration methods:

1. In the ION Setup Security wizard, click Next to navigate to Security Options.
2. In Security Options:

   Select or clear Enable Web to enable or disable the ability to view meter settings online using webpages.

   Select or clear Allow setup by webpages to enable or disable the ability to change meter settings using webpages.

   Select or clear Allow Front Panel programming to enable or disable the ability to change meter settings using the display.

   Select from the Modbus Access drop-down list:

   • None – Disables built-in Modbus map access.
   • Read/Write – Enables configuration of basic metering parameters using only Modbus communications protocol.
   • Read Only – Enables ability to read metering parameters using only Modbus communications protocol. This option is enabled by default.
3. Next, either:
   • Continue configuring the meter security settings.
   • Click Finish to push your security configuration changes to the meter.