User Manual

Landis+Gyr Gridstream RF Enhanced Integrated FOCUS AX Quick Start Guide
Data Sheet 98-1033 Rev AB 5
Availability of the following features depends on meter configuration. Options for periodic reported
data with this module include:
• Register Data & Status Flags (Standard Tables 23 & 3) which includes consumption,
demand, TOU values and meter status
• Load Profile or Interval Data & Status Flags (Standard Tables 64 & 3) which includes
interval data and meter status
Demand Reset
When the Command Center Host delivers a Demand Reset command, the communication module
passes the command to the meter, which performs the Demand Reset on the meter. The endpoint
then passes the previous demand data captured by the meter (Standard Table 25) to the Host for
processing.
Time Synchronization
Time synchronization is the process of keeping the meter time synchronized with the Gridsteam RF
network time within a configurable limit. The communication module automatically keeps its time
synchronized with the Gridstream RF network via periodic background process. The communication
module reads the meter date/clock table (Standard Table 52) at 1:23 AM. If the time drift between
meter and communication module exceeds the minimum time threshold, X, it sends a time
synchronization alert message to the Host so it knows that an adjustment was made automatically for
XX seconds. If the time is off by more than Y seconds, an alert is sent saying the time off exceeds
allowed seconds and that further manual action will be required to correct.
Power Outage/Restoration
When an outage occurs, the meter uses an early power failure signal to alert the communication
module to disconnect from the meter's power immediately. The communication module saves
critical module data to non-volatile memory and creates and sends a power outage message. This
message includes the following information:
• LAN ID
• Outage time
• Reboot count.
The communication module sends the message, then assists with routing other packets until the
back-up energy source can no longer keep the radio alive.
When power is restored, the communication module connects with the network. With network
communications restored, the communication module sends a power restoration message that
includes details such as:
• LAN ID
• Outage time
• Restoration time
• Reboot count.