Siemens 9810 Series, User Manual, Page: 26 / 218

Communications
Communications
Communications overview
Communications is the transfer of data to and from the meter and is controlled by
a combination of hardware and software components in the meter.
For each connected communications port, the meter uses the applicable
communications protocol to establish communications with other devices or
software. The protocol manages the communications session and defines the set
of rules, commands and packet structure of the transmitted data. You can also
control which protocols are enabled or disabled on the meter.
NOTE: To maximize the performance of your power management system, it is
recommended that devices be connected directly to an Ethernet network.
Other means of controlling communications, such as who can access certain
types of meter data, are discussed in the security topics for the meter.
Your meter’s default protocol settings meet the needs of most systems with only
basic configuration. You can customize these settings to meet your specific needs.
These are advanced procedures that require an understanding of your meter’s
architecture, supported protocols, and the communications network and power
system that your meter is connected to.
Ethernet communications
Your Ethernet connection source should be installed in a location that helps
minimize the overall Ethernet cable routing length and complexity of your network.
The meter supports a single IP address for both physical Ethernet connections.
Your device’s second Ethernet port acts as an Ethernet switch to help simplify
network connections and reduce installation time and costs, by having shorter
Ethernet cable runs between devices without needing additional Ethernet routers
or repeaters. You cannot connect your meter to two different Ethernet networks.
The two Ethernet ports do not split the signal, so connecting both of the ports
should not impact your communications speed.
The meter uses dual-stack IPv4/IPv6 routing technology to manage network
communications and allow network hosts to communicate with the meter using
either IPv4 or IPv6.
Ethernet communications connections
Your meter’s dual port Ethernet connections enable you to use straight-line or
network loop (ring) topology.
If local network loop Ethernet topology is required, you must enable RSTP for your
meter’s Ethernet communications to function.
Use CAT5 (or higher) Ethernet cables with unshielded RJ45 modular connectors
to wire your meter’s Ethernet communications.
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