Electro Industries SM1-16, Installation & Operation Manual

Page: 22 / 35

Electro Industries/GaugeTech
Doc # E113-7-07-101
3-1
Chapter 3
Ethernet Option Operation
3.1: Overview
Q
Substation Multiplexor with the Ethernet Option provides a dependable solution for substation
telecommunication applications. This unit multiplexes 16 serial ports to one master port, providing
the ability to communicate and switch between multiple serial devices. This option of the Substation
Multiplexor uses Ethernet Technology that allows integrated network connectivity through RJ-45
(10BASE-T) connection.
Substation Multiplexor works with any standard terminal program. Use Windows
®
HyperTerminal
(section 3.3), Nexus Communicator (section 3.4) or other communication software (section 3.2) to
configure the Substation Multiplexor.
Q
Substation Multiplexor has three operating modes:
•
Command Mode (sections 3.5–3.10)
In Command Mode, the Substation Multiplexor will accept commands from a computer. The
unit is set to put itself in Command Mode upon Power-up, Reset and Auto Refresh (see section
3.5). Use Command Mode to configure the Multiplexor and/or check its status. Put the unit in
Throughput Mode to establish communication with the devices connected to the Slave Ports.
•
Throughput Mode (sections 3.6, 3.10)
In Throughput Mode, Substation Multiplexor transfers data between the computer connected to
its Master/Ethernet Port and the device(s) connected to a selected Slave Port. The Substation
Multiplexor will not accept any commands while in Throughput Mode. To enter Command
Mode from Throughput Mode, send the escape string detailed in section 3.5.
•
Boot Mode
Boot Mode is used for flash upgrading only as additional features become available. Boot Mode
is not covered in this manual.
Q
New Features of the Substation Multiplexor:
•
Line Feed : Version E01 will respond with Line Feed (LF) at the end of a message. So, if you
are using HyperTerminal, DO NOT check “Append line feeds to incoming line ends”.
•
Default Start-up Slave Port : Select Port for Start-up and Reset (section 3.6).
•
Choice of Start-up Mode : Select Command or Throughput Mode for Start-up (section 3.12).
•
Password Protection : Password Protection for Command and Throughput Modes (section 3.13).
•
Unit Status : Settings and Status displayed (section 3.8).