1.10
SEL-2032
Communications Processor
Instruction Manual
Date Code 20120126
Introduction and Specifications
Integration Process
Step 4.
Determine IED protocol information.
For SEL devices, use
the SEL protocol and take advantage of autoconfiguration and
interleaved protocols. For non-SEL devices, determine the
protocol information necessary to collect the data that your data
consumers require. See
Using the SEL-2032 With Non-SEL
for more information.
Step 5.
Determine detailed information lists for master devices.
For
connections to masters like SCADA systems and HMIs,
determine exactly what information points are required and
how they will be scaled and presented. This will allow you to
configure the SEL-2032 to move and scale collected data into
an optimized data set for each master.
Step 6.
Determine required SEL-2032 port configurations.
Use the
information about the IEDs and communications links to
determine communications link parameters including
communications speed, parity, stop bits, and handshaking.
Step 7.
Determine SEL-2032 data collection messages.
For SEL
IEDs, use the shorthand “20” messages to collect and parse
data automatically. For non-SEL devices use the information
gathered in
to determine the outgoing control and data
request messages and response parsing methods.
Step 8.
Determine SEL-2032 data math/movement settings.
This
step connects the data collected in
to the master data
. Math/movement settings
concentrate, scale, and manipulate collected data for master
devices.
Step 9.
Install and commission system.
See
for
more information.
Using the
SEL-2032 With
Non-SEL IEDs
In order to implement connections to non-SEL IEDs, it is helpful to
understand the basic data collection mechanism of the SEL-2032. With
transparent mode and direct transparent mode, the SEL-2032 can provide port
switch services to almost any device with an EIA-232 interface. Cables for use
with many non-SEL IEDs are included in the SEL
-
5801 Cable Selector
Software available for free download from the SEL Web site. The SEL-2032
automatic message settings are the primary mechanism for communicating
with IEDs and collecting data. You can handle unsolicited messages from
IEDs with user-defined messages.
Automatic Messages
Automatic message settings include the SEL “20” messages for SEL devices,
but also allow you to construct outgoing messages and define how the
response is stored (parsed into data) in the SEL-2032. Then you can
manipulate, scale, and move the data to areas of the SEL-2032 to make it
available to master devices like HMIs and SCADA systems.
Devices with serial ports use some kind of communications protocol. A
protocol is a defined set of commands and responses. For example, a simple
power meter may allow you to send the command
METER
and respond with
a list of currents and voltages. This example might use standard human
readable computer characters called ASCII or the whole exchange may use
binary numbers to represent the commands and markers.
Summary of Contents for SEL-2032
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