Schweitzer Engineering Laboratories SEL-2890, Instruction Manual

Page: 48 / 86

SEL-2890 Instruction Manual Date Code 20210715
Detailed Application Examples
Job Done Example 3
4.6
can now read or send settings, collect event reports, or use
the
AC
SEL
ERATOR
QuickSet HMI to communicate with the
relay. When you are finished, return to the Terminal window
and use the terminate transparent connection keystroke
(default is
<Ctrl+D> ) to terminate the transparent connection
before closing
AC
SEL
ERATOR
QuickSet.
Job Done Example 3
EXAMPLE 4.3 Serial Tunneling
Serial tunneling is the ability to “tunnel” serial data across an
Ethernet network. The “tunnel” is meant to be a point-to-
point connection between two serial IEDs that may be used
for transmitting Modbus, DNP3, SEL binary, and other binary
or ASCII data. The SEL-2890 has three modes of tunneling:
Commanded, Telnet, and TCP.
Commanded Mode
Assume you have two SEL-2890 Ethernet transceivers,
designated as #1 and #2, and an SEL-2701. Refer to Figure 4.5.
You can now use the
TUNNEL command in SEL-2890 #1 to
dynamically establish a serial tunnel to SEL-2890 #2 or to an
SEL-2701. First, issue the following settings in each
transceiver and the SEL-2701.
SEL-2890 #1: (IP 192.168.0.2 for this example)
SET <Enter>
PORT= 23
TEL_PROC=Y
TUNNEL= CMD
SPEED= 19200
STOP= 1
PARITY= NONE
FLOW= NONE
SEL-2890 #2: (IP 192.168.0.3 for this example)
SET <Enter>
PORT= 23
TEL_PROC=Y
TUNNEL= N
SPEED= 38400
STOP= 1
PARITY= NONE
FLOW= NONE
SEL-2701: (IP 192.168.0.4 for this example)
SET P 17 <Enter>
T1RECV:= “Y”
T1PNUM:= 23