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Communications
3. Save your meter’s MIB file. Make sure you keep the original file extension of .
MIB.
This example shows an original and an updated OID entry in an MIB file, where
the default meter value of voltage line-to-neutral phase A is modified in the meter’s
SNMP Mapping module and is now connected to voltage line-to-neutral phase C.
Original OID entry
Vln_a OBJECT-TYPE
SYNTAX DisplayString (SIZE (0. . 255))
ACCESS read-only
STATUS mandatory
DESCRIPTION “Host Meter Voltage Line A to Neutral Units = V (Volts)” ::= { Siemens Industry 34 }
You must update the variable name and description to match the meter values
connected to the SNMP Mapping module:
Value Original Updated
Variable name Vin_a Vin_c
Description “Host Meter Voltage Line A to
Neutral Units = V (Volts)” ::= {
Siemens Industry 34 }
Host Meter Voltage Line C to
Neutral Units = V (Volts)” ::= {
Siemens Industry 34 }
The SNMP client software reads the original and updated file as follows:
Original Updated
variable name: Vln_a
Description: “SNM1 Input 1 - Voltage (line-
toneutral) phase A”
variable name: Vln_c
Description: “SNM1 Input 1 - Voltage (line-to-
neutral) phase C”
IEC 61850
IEC 61850 is an Ethernet-based protocol designed for electrical substations.
It is a standardized method of communications, developed to support integrated
systems composed of multi-vendor, self-describing IEDs (intelligent electronic
devices) that are networked together.
Your meter can be integrated into an IEC 61850 system as an IED (or server)
supporting concurrent IEC 61850 client connections and an FTP connection (used
for transferring data or configuration files).
You can go to the IEC (International Electrotechnical Commission) website at
www.iec.ch for information about the IEC 61850 protocol. For more information on
how IEC 61850 is implemented on your meter, see the
IEC 61850 and ION
Technology protocol document.
IEC 61850 implementation
Your meter comes configured with a default set of meter data available to IEC
61850.
This default set of meter data is used in the default data sets and reports in the
ICD file(s) available for download from www.usa.siemens.com/pds.
NOTE: Select the ICD file that matches your meter’s option module
configuration.
You must load a valid IEC 61850 configuration (CID) file into the meter’s internal
FTP site in order to activate the IEC 61850 features of your meter. Your meter can
have only one IEC 61850 configuration (CID) file loaded onto its internal FTP
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