ModSnmp Manual v3.09 - 4.3. Deleting Modbus Interfaces
Modbus interfaces can be deleted using the Modbus Interfaces page:
To delete a Modbus interface, select the Modbus interface and then click the Delete button.
To delete several Modbus interfaces, select them by clicking on them while holding down the control key, and then click the Delete button.
To delete all Modbus interfaces, click the Delete All button.
A Modbus interface cannot be deleted if it is in use by a device definition.