on-demand read (ODR)

A human-initiated, two-way, instantaneous, and asynchronous communication from the head end system (HES) or meter data management (MDM) system over the network infrastructure to obtain consumption, status, or programming data from gas, water, or electric endpoints.

In Itron Fixed Network, an on-demand read request is initiated either at the Network Web Application (NWA) or the Network Administration Application. The read request is communicated over the advanced metering infrastructure (AMI) network to an Encoder/Receiver/Transmitter (ERT) module, cell control unit (CCU), or database to obtain the most recent read that does not exceed staleness factor limitations.