Supported time synchronization sources
Several time synchronization sources are available to your meter.
Time sync
source
Description
Meter
configuration
software (ION
Setup)
Configuration software can manually synchronize the time of your meter
based on the clock of the computer running the configuration software.
Configuration software synchronization is usually performed when the meter
is initially commissioned.
Energy
management
system
Energy management systems can synchronize the time of your meter to be
consistent with other meters on the network.
GPS receiver
(IRIG-B)
1
A GPS receiver using IRIG-B can synchronize the time of a meter up to ± 1
ms of Coordinated Universal Time (UTC). A dedicated serial network is
required to implement a GPS scheme. For IRIG-B, one of your meter’s
digital inputs must be connected to the IRIG-B network, and the digital input
must be configured for IRIG-B time synchronization in addition to
configuring your meter’s clock.
GPS over serial
A GPS receiver can synchronize the time of a meter up to ± 1 ms of
Coordinated Universal Time (UTC). For GPS over serial, your meter’s serial
port must be connected to a GPS receiver, and the serial port
communications must be configured with the correct protocol setting.
Simple Network
Time Protocol
(SNTP)
SNTP can synchronize the time of your meter up to ± 1 second of other
meters on an Ethernet network. For SNTP time synchronization, your meter
must be connected to an Ethernet network that has an active SNTP server
and be configured with the server’s information.
Network Time
Protocol (NTP)
NTP can typically synchronize the time of a meter to ± 10 to 100 ms,
depending on network configuration. To implement NTP time
synchronization, your meter must be connected to an Ethernet network that
has an active NTP server and be configured with the server’s information.
Precision Time
Protocol (PTP)
2
PTP can synchronize the meter time to ± 1 ms of other devices connected to
a local area network. To implement PTP time synchronization, your meter
must have PTP selected as the time sync source and be connected to an
Ethernet network that has a valid PTP grandmaster.
1
Use the digital inputs located on the meter base for IRIG-B time synchronization and other high-
accuracy applications.
2
This clock precision assumes your meter is installed in a Star network topology only.
Clock source
The Clock Source setup register defines the meter’s representation of a one second period, and
can be set to:
9810 series - User manual Time and timekeeping
7EN05-0390-08 240
To Next Page
Loading...
Need help?
General
