Siemens 9810 Series, User Manual, Page: 69 / 218

Communications
DNP
Your meter can be integrated into a DNP network as a DNP slave.
The Distributed Network Protocol Version 3.0 (DNP 3.0) is an open protocol used
in the electric utility industry for communications and interoperability among
substation computers, Remote Terminal Units (RTUs), Intelligent Electronic
Devices (IEDs, e.g. meters), and master stations.
DNP supported features and default implementation
Your meter is pre-configured for basic DNP Slave functionality.
Your meter supports a maximum of three concurrent connections (sessions) using
the DNP 3.0 protocol; one for each serial port, up to three using Ethernet, or a
combination of both. Combinations available depend on the meter's
communications options. A session consists of all incoming and outgoing DNP
Master/Slave traffic on one of the meter's communications ports.
For serial DNP communications, you must assign the DNP protocol to the
appropriate serial communication port on your meter; you do not have to configure
your meter’s Ethernet port(s).
You can modify your meter’s default DNP map using configuration software.
Data can be imported into the meter from a DNP control relay or analog output
device. This is an advanced feature intended for users with an in-depth
understanding of the DNP 3.0 and ION protocols.
See the online ION Setup help for instructions on connecting to your meter and
accessing the Setup Assistant, which can be used to modify your meter’s DNP
port settings and default DNP map. Go to www.usa.siemens.com/pds to download
your meter’s DNP 3.0 device profile document for detailed information on your
meter’s default DNP map and implementation and the
Multiport DNP 3.0 and ION
technology technical note for more information on how your meter supports DNP
3.0.
DLMS/COSEM
The Device Language Message Specification (DLMS) is described by the
international standard IEC 62056. It defines structured modeling and meter data
exchange for an interoperable environment.
DLMS supports applications such as remote meter reading, remote control, and
value-added services for metering different kinds of energy, such as electricity,
water, gas or heat.
COSEM stands for Companion Specification for Energy Metering. It is an interface
model for communicating with energy metering equipment, providing a view of the
functionality available through the communications interfaces. The model uses an
object-oriented approach.
The COSEM model allows for a manufacturer-independent and controlled method
to identify, retrieve and interpret the information held in any meter.
See the DLMS/COSEM and ION technology technote for more information about
how DLMS is implemented on your meter.
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