Moxa Technologies EtherDevice EDS-508A, EtherDevice EDS-505A, EDS-508A, EDS-505A User Manual

Moxa EtherDevice™ Switch

EDS-508A/505A Series User’s Manual

www.moxa.com/product

Fifth Edition, January 2010

 2010 Moxa Inc. All rights reserved.

Reproduction without permi ssion is pr ohibited.

Moxa EtherDevice™ Switch

EDS-508A/505A Series User’s Manual

The software described in this manual is furnished under a license agreement and may be used only in

accordance with the terms of that agreement.

Copyright Notice

Copyright  2010 Moxa Inc.

All rights reserved.

Reproduction without permi ssion is pr ohibited.

Trademarks

MOXA is a registered trademark of Moxa Inc.

All other trademarks or registered marks in this manual belong to their respective manufacturers.

Disclaimer

Information in this document is subject to change without notice and does not represent a commitment on the
part of Moxa.

Moxa provides this document “as is,” without warranty of any kind, either expressed or implied, including, but
not limited to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this
manual, or to the products and/or the programs described in this manual, at any time.

Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no
responsibility for its use, or for any infringements on the rights of third parties that may result from its use.

This product might include unintentional technical or typographical errors. Changes are periodically made to the
information herein to correct such errors, and these changes are incorporated into new editions of the
publication.

Technical Support Contact Information

www.moxa.com/support

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Toll-free: 1-888-669-2872
Tel: [phone]
Fax: [phone]

Moxa China (Shanghai office)

:
Toll-free: 800-820-5036
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Table of Contents

Chapter 1 Introduction ...............................................................................................1-1

Inside the Future of Industrial Ethernet Technology ............................................................1-2

The trend in industrial communications and automation applications...................... 1-2

Industrial vs. Commercial......................................................................................... 1-2

Informative vs. Passive ............................................................................................. 1-2

Moxa EtherDevice™ Switch................................................................................................ 1-2

Package Checklist................................................................................................................. 1-3

Features ................................................................................................................................ 1-3

Chapter 2 Getting Started ..........................................................................................2-1

RS-232 Console Configuration (115200, None, 8, 1, VT100) ............................................. 2-2

Configuration using a T elnet Console.................................................................................. 2-5

Configuration using a Web Browser..................................................................................... 2-7

Disabling T elnet and Browser Access .................................................................................. 2-8

Chapter 3 Featured Functions...................................................................................3-1

Configuring Basic Settings................................................................................................... 3-3

System Identification................................................................................................. 3-3

Password ................................................................................................................... 3-4

Accessible IP............................................................................................................. 3-5

Port............................................................................................................................ 3-6

Network Parameters.................................................................................................. 3-8

Time........................................................................................................................ 3-10

Turbo Ring DIP Switches ....................................................................................... 3-13

System File Update—By Remote TFTP................................................................. 3-16

System File Update—By Local Import/Export....................................................... 3-17

System File Update—By Backup Media ................................................................ 3-18

Restart ..................................................................................................................... 3-18

Factory Default........................................................................................................ 3-19

Using Port Trunking........................................................................................................... 3-19

The Port Trunking Concept..................................................................................... 3-19

Configuring Port Trunking...................................................................................... 3-20

Configuring SNMP............................................................................................................. 3-22

SNMP Read/Write Settings..................................................................................... 3-23

Trap Settings ........................................................................................................... 3-24

Private MIB information......................................................................................... 3-25

Using Communication Redundancy................................................................................... 3-25

The Turbo Ring Concept......................................................................................... 3-26

Configuring “Turbo Ring” and “Turbo Ring V2”................................................... 3-31

The Turbo Chain Concept....................................................................................... 3-36

Configuring “Turbo Chain”..................................................................................... 3-37

The STP/RSTP Concept.......................................................................................... 3-40

Configuring STP/RSTP........................................................................................... 3-46

Using Traffic Prioritization................................................................................................. 3-48

The Traffic Prioritization Concept.......................................................................... 3-48

Configuring Traffic Prioritization........................................................................... 3-51

Using Virtual LAN............................................................................................................. 3-53

The Virtual LAN (VLAN) Concept........................................................................ 3-53

Sample Applications of VLANs using the EDS-508A/505A.................................. 3-56

Configuring Virtual LAN........................................................................................ 3-57

Using Multicast Filtering.................................................................................................... 3-60

The Concept of Multicast Filtering......................................................................... 3-60

Configuring IGMP Snooping.................................................................................. 3-63

Static Multicast MAC.............................................................................................. 3-65

Configuring GMRP................................................................................................. 3-66

GMRP Table ........................................................................................................... 3-66

Using Bandwidth Management.......................................................................................... 3-67

Configuring Bandwidth Management..................................................................... 3-67

Using Port Access Control.................................................................................................. 3-67

Configuring Static Port Lock .................................................................................. 3-69

Configuring IEEE 802.1X....................................................................................... 3-70

Using Auto Warning........................................................................................................... 3-73

Configuring Email Warning.................................................................................... 3-73

Event Type.............................................................................................................. 3-73

Email Setup............................................................................................................. 3-75

Configuring Relay Warning.................................................................................... 3-76

Event Setup ............................................................................................................. 3-76

Warning List............................................................................................................ 3-77

Using Line-Swap-Fast-Recovery........................................................................................ 3-78

Configuring Line-Swap Fast Recovery................................................................... 3-78

Using Set Device IP............................................................................................................ 3-78

Configuring Set Device IP ...................................................................................... 3-79

Using Diagnosis.................................................................................................................. 3-81

Mirror Port .............................................................................................................. 3-81

Ping ......................................................................................................................... 3-82

Using Monitor .................................................................................................................... 3-85

Monitor by Switch................................................................................................... 3-85

Monitor by Port....................................................................................................... 3-86

Using the MAC Address Tabl e........................................................................................... 3-86

Using Event Log................................................................................................................. 3-87

Using Syslog....................................................................................................................... 3-88

Using HTTPS/SSL ............................................................................................................. 3-89

Chapter 4 EDS Configurator GUI...............................................................................4-1

Starting EDS Configurator ................................................................................................... 4-2

Broadcast Search.................................................................................................................. 4-3

Search by IP address............................................................................................................. 4-4

Upgrade Firmware................................................................................................................ 4-4

Modify IP Address................................................................................................................ 4-5

Export Configuration............................................................................................................ 4-6

Import Configuration............................................................................................................ 4-7

Unlock Server....................................................................................................................... 4-8

Appendix A MIB Groups...............................................................................................A-1

Appendix B Modbus/TCP Map .....................................................................................B-1

EDS-505A Modbus information v1.0 ...................................................................................B-1

EDS-508A Modbus information v1.0 ...................................................................................B-7

1

1

Chapter 1 Introduction

Welcome to the Moxa EtherDevice Switch EDS-508A/505A Series, the Managed Redundant
Ethernet Switch designed specially for connecting Ethernet-enabled devices in industrial field
applications.

The following topics are covered in this chapter:

 Inside the Future of Industrial Ethernet Technology
 Moxa EtherDevice™ Switch
 Package Checklist
 Features

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Inside the Future of Industrial Ethernet Technology

The trend in industrial communications and automation applications

As the world’s network and information technology becomes more mature, the trend is to use
Ethernet as the major communications interface in many industrial communications and
automation applications. In fact, a whole new industry has sprung up to provide Ethernet products
that comply with the requirements of demanding industrial applications.

Industrial vs. Commercial

Users have found that when moving Ethernet from the comfortable office environment to the harsh
and less predictable industrial environment, the commercial Ethernet equipment available in
today’s market simply cannot meet the high reliability requirements demanded by industrial
applications. This means that a more robust type of network equipment, commonly referred to as
industrial Ethernet equipment, is required for these applications.

Informative vs. Passive

Since industrial Ethernet devices are often located at the endpoints of a system, such devices
cannot always know what’s happening elsewhere on the network. This means that industrial
Ethernet communication equipment that connects these devices must take responsibility for
providing system maintainers with real-time alarm messages.

Moxa EtherDevice™ Switch

Moxa EtherDevice Switch comes with a suite of useful maintenance and monitoring functions, and
is designed to provide smooth and reliable operation in harsh industrial environments. You will
find that Moxa EtherDevice Switch establishes a new industrial Ethernet benchmark. It is excellent
for keeping automation systems running continuously, is ideal for sending status reports to help
prevent system damage and losses, is a great tool for mastering your industrial Ethernet networks,
and is well-suited for use with industrial device control networks.

ATTENTION

Throughout this User’s Manual, we use EDS as an abbreviation for Moxa EtherDevice Switch:

EDS = Moxa EtherDevice Switch

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Package Checklist

The Moxa EtherDevice Switch EDS-508A/505A Series is shipped with the following items. If any
of these items are missing or damaged, please contact your customer service representative for
assistance.

 1 Moxa EtherDevice Switch EDS-508A/505A
 Hardware Installation Guide
 CD-ROM with User’s Manual and Windows Utility
 Moxa Product Warranty booklet
 RJ45 to DB9 Console port cable
 Protective caps for unused ports
 Panel mounting kit (optional—must order separately)

Features

 IPv6 Ready logo awarded (IPv6 Logo Committee certified).
 IEEE 1588 PTP (Precision Time Protocol) for precise time synchronization of networks.
 DHCP Option 82 for IP address assignment with different policies.
 Modbus/TCP industrial Ethernet protocol supported.
 Turbo Ring and Turbo Chain (recovery time < 20 ms at full load) and RSTP/STP (IEEE

802.1w/D).

 IGMP snooping and GMRP for filtering multicast traffic.
 Port-based VLAN, IEEE 802.1Q VLAN, and GVRP to ease network planning.
 QoS (IEEE 802.1p/1Q) and TOS/DiffServ to increase determinism.
 Port Trunking for optimum bandwidth utilization.
 IEEE 802.1X, HTTPS, and SSH to enhance network security.
 SNMPv1/v2c/v3 for different levels of network management.
 RMON for efficient network monitoring and proactive capability.
 Bandwidth management prevents unpredictable network status.
 Lock port function for blocking unauthorized access based on MAC address.
 Port mirroring for online debugging.
 Automatic warning by exception through e-mail, relay output.
 Digital inputs to integrate sensors and alarms with IP networks.

2

2

Chapter 2 Getting Started

This chapter explains how to access your EDS-508A/505A switch for the first time. There are
three ways to access the switch: serial console, Telnet console, and web browser. The serial
console connection method, which requires using a short serial cable to connect the EDS to a PC’s
COM port, can be used if you do not know the EDS’s IP address. The Telnet console and web
browser connection methods can be used to access the EDS over an Ethernet LAN, or over the
Internet.

The following topics are covered:

 RS-232 Console Configuration (115200, None, 8, 1, VT100)
 Configuration using a Telnet Console
 Configuration using a Web Browser
 Disabling Telnet and Browser Access

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RS-232 Console Configuration (115200, None, 8, 1, VT100)

NOTE

Connection Caution!

1. You cannot connect to the EDS simultaneously by serial console and Telnet.

2. You can connect to the EDS simultaneously by web browser and serial console, or by web

browser and Telnet. However, we strongly suggest that you do NOT use more than one
connection method at the same time. Following this advice will allow you to maintain better
control over the configuration of your EDS.

NOTE

We recommend using Moxa PComm Terminal Emulator, which can be downloaded free of
charge from Moxa’s website.

Before running PComm Terminal Emulator, use an RJ45 to DB9-F (or RJ45 to DB25-F) cable to
connect the EDS’s RS-232 Console port to your PC’s COM port (generally COM1 or COM2,
depending on how your system is set up).

After installing PComm Terminal Emulator, perform the following steps to access the RS-232
Console utility.

1. From the Windows desktop, click Start  Programs  PCommLite2.5  Terminal

Emulator.

2. Select Open under Port Manager to open a new connection.

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3. The Communication Parameter page of the Property window opens. Select the appropriate

COM port for Console Connection, 115200 for Baud Rate, 8 for Data Bits, None for Parity,
and 1 for Stop Bits.

4. Click the Terminal tab, and select VT100 for Terminal Type. Click OK to continue.

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5. Type 1 to select ansi/VT100 terminal type, and then press Enter.

6. The Console login screen will appear. Press Enter to open the Account pop-up selector and

then select either admin or user. Use the keyboard’s down arrow to move the cursor to the
Password field, enter the Console Password (this is the same as the Web Browser password;
leave the Password field blank if a console password has not been set), and then press Enter.

7. The EDS-508A/505A’s Main Menu will be displayed. (NOTE: To modify the appearance of

the PComm Terminal Emulator window, select Font… under the Edit menu, and then choose
the desired formatting options.)

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8. After entering the Main Menu, use the following keys to move the cursor, and to select

options.

Key Function

Up/Down/Left/Right arrows, or Tab Move the onscreen cursor
Enter Display & select options
Space Toggle options
Esc Previous Menu

Configuration using a Telnet Console

You may use Telnet to access the EDS’s console utility over a network. To be able to access
EDS’s functions over the network (by Telnet or Web Browser) from a PC host that is connected to
the same LAN as the EDS, you need to make sure that the PC host and the EDS are on the same
logical subnet. To do this, check your PC host’s IP address and subnet mask . By default, the
EDS’s IP address is 192.168.127.253 and the EDS’s subnet mask is 255.255.0.0 (for a Class B
network). If you do not change these values, and your PC host’s subnet mask is 255.255.0.0, then
its IP address must have the form 192.168.xxx.xxx. On the other hand, if your PC host’s subnet
mask is 255.255.255.0, then its IP address must have the form 192.168.127.x xx.

NOTE

To use the EDS’s management and monitoring functions from a PC host connected to the same
LAN as the EDS, you must make sure that the PC host and the EDS are on the same logical
subnet.

NOTE

Before accessing the console utility by Telnet, first connect one of the EDS’s RJ45 Ethernet ports
to your Ethernet LAN, or directly to your PC’s Ethernet NIC. You can establish a connection
with either a straight-through or cross-over Ethernet cable.

NOTE

The EDS-508A/505A’s default IP is 192.168.127.253.

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Perform the following steps to access the console utility by Telnet.

1. Click Start  Run, and then telnet to the EDS’s IP address from the Windows Run window.

(You may also issue the telnet command from the MS-DOS prompt.)

2. Type 1 to choose ansi/vt100, and then press Enter.

3. The Console login screen will appear. Press Enter to open the Account pop-up selector and

then select either admin or user. Use the keyboard’s down arrow to move the cursor to the
Password field, enter the Console Password (this is the same as the Web Browser password;
leave the Password field blank if a console password has not been set), and then press Enter.

4. When the Main Menu of the EDS’s console utility opens, click Terminal  preferences…

from the menu at the top of the window.

5. When the Terminal Preferences window opens, make sure that the VT100 Arrows option is

selected.

NOTE

The Telnet Console looks and operates in precisely the same manner as the RS-232 Console.

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Configuration using a Web Browser

The EDS’s web browser interface provides a convenient way to modify the switch’s configuration
and access the built-in monitoring and network administration functions. The recommended web
browser is Microsoft Internet Explorer 5.5 or 6.0 wi t h JVM (Java Virtual Machine) installed.

NOTE

To use the EDS’s management and monitoring functions from a PC host connected to the same
LAN as the EDS, you must make sure that the PC host and the EDS are on the same logical
subnet.

NOTE

If the EDS is configured for other VLAN settings, you must make sure your PC host is on the
management VLAN.

NOTE

Before accessing the EDS’s web browser interface, first connect one of its RJ45 Ethernet ports to
your Ethernet LAN, or directly to your PC’s Ethernet NIC. You can establish a connection with
either a straight-through or cross-over Ethernet cable.

NOTE

The Moxa EDS-508A/505A’s default IP is 192.168.127.253.

Perform the following steps to access the EDS’s web browser interface.

1. Open Internet Explorer and type the EDS’s IP address in the Address field. Press Enter to

establish the connection.

2. The web login page will open. Select the login account (Admin or User) and enter the

Password (this is the same as the Console password), and then click Login to continue. Leave
the Password field blank if a password has not been set.

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NOTE

By default, the EDS’s password is not set (i.e., is blank).

You may need to wait a few moments for the web page to be downloaded to your computer. Use
the menu tree on the left side of the window to open the function pages to access each of Moxa
EtherDevice Switch’s functions.

Disabling Telnet and Browser Access

If you are connecting the EDS to a public network, but do not intend to use its management
functions over the network, we suggest disab li ng both Telnet Console and Web Configuration
from the RS-232 Console’s Basic Settings  System Identification page, as shown in the
following figure.

3

3

Chapter 3 Featured Functions

This chapter explains how to access the EDS-508A/505A’s various configuration, monitoring, and
administration functions. There are three ways to access these functions: RS-232 console, Telnet
console, and web browser. The serial console connection method, which requires using a short
serial cable to connect the EDS to a PC’s COM port, can be used if you do not know the EDS’s IP
address. The Telnet console and web browser connection methods can be used to access the EDS
over an Ethernet LAN, or over the Internet.

The Web Console is the most user-friendly way to configure the EDS. In this chapter, we use the
Web Console interface to introduce the functions. There are only a few differences between the
Web Console, Serial Console, and Telnet Console.

The following topics are covered in this chapter:

 Configuring Basic Settings
 Using Port Trunking
 Configuring SNMP







 Using C

ommunication Redundancy

 Using Traffic Prioritization
 Using Virtual LAN
 Using Multicast Filtering
 Using Bandwidth Management
 Using Port Access Control
 Using Auto Warning
 Using Line-Swap-Fast-Recovery
 Using Set Device IP
 Using Diagnosis
 Using Monitor
 Using the MAC Address Table

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 Using Event Log
 Using Syslog
 Using HTTPS/SSL

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Configuring Basic Settings

The Basic Settings group includes the most commonly used settings required by administrators to
maintain and control the EDS.

System Identification

The system identification items are displayed at the top of the web page, and will be included in
alarm emails. Entering the system identification information makes it easier to identify the
different switches connected to your network.

Switch Name

Setting Description Factory Default

Max. 30
Characters

This option is useful for specifying the role or
application of different EDS units.
E.g., Factory Switch 1.

Managed Redundant Switch
[Serial No. of this switch]

Switch Location

Setting Description Factory Default

Max. 80
Characters

To specify the location of different EDS units.
E.g., production line 1.

Switch Location

Switch Description

Setting Description Factory Default

Max. 30
Characters

Use this to enter a more detailed description of
the EDS.

None

Maintainer Contact Info

Setting Description Factory Default

Max. 30
Characters

To provide information about whom to contact
in order to resolve problems. Use this to enter
contact information of the person responsible
for maintaining this EDS.

None

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Web Auto-logout (s)

Setting Description Factory Default

60 to 86400 (seconds)

Disable or extend the auto-logout time for the
web management console.

0 (disable)

Age time (s)

Setting Description Factory Default

15 to 3825 (seconds)

The length of time that a MAC address entry
can remain in the Moxa switch. When an
entry reaches its aging time, it “ages out” and
is purged from the switch, effectively
cancelling frame forwarding to that specific
port.

300

Password

The EDS provides two levels of access privileges: admin privilege gives read/write access to all
EDS configuration parameters, and user privilege provides read access only. You will be able to
view the configuration, but will not be able to make modifications.

ATTENTION

The EDS’s default Password is not set (i.e., is blank). If a Password is already set, then you will
be required to type the Password when logging into the RS-232 Console, Telnet Console, or Web
Browser interface.

Account

Setting Description Factory Default

admin “admin” privilege allows the user to modify all

EDS configuration settings.

user “user” privilege only allows viewing the EDS

configurations.

admin

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Password

Setting Description Factory Default

Old Password
(Max. 16 Characters)

Type current password when changing the
password

None

New Password
(Max. 16 Characters)

Type new password when changing the password None

Retype Password
(Max. 16 Characters)

If you type a new password in the Password field,
you will be required to retype the password in the
Retype new password field before updat ing the
new password.

None

Accessible IP

The EDS uses an IP address-based filtering method to control access to EDS units.

Accessible IP Settings allows you to add or remove “Legal” remote host IP addresses to prevent
unauthorized access. Access to the EDS is controlled by IP address. If a host’s IP address is in the
accessible IP table, then the host will be allowed access to the EDS. You can allow one of the
following cases by setting this parameter:

 Only one host with the specified IP address can access the EDS

E.g., enter “192.168.1.1/255.255.255.255” to allow access to just the IP address 192.168.1.1.

 Any host on a specific subnetwork can access the EDS

E.g., enter “192.168.1.0/255.255.255.0” to allow access to all IPs on the subnet defined by this
IP address/subnet mask combination.

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 Any host can a ccess the EDS

Disable this function by deselecting the Enable the accessible IP list option.
The following table shows additional configuration examples:

Allowable Hosts Input format

Any host Disable

192.168.1.120 192.168.1.120 / 255.255.255.255

192.168.1.1 to 192.168.1.254 192.168.1.0 / 255.255.255.0

192.168.0.1 to 192.168.255.254 192.168.0.0 / 255.255.0.0

192.168.1.1 to 192.168.1.126 192.168.1.0 / 255.255.255.128

192.168.1.129 to 192.168.1.254 192.168.1.128 / 255.255.255.128

Port

Port settings are included to give the user control over Port Access, Port Transmission Speed,
Flow Control, and Port Type (MDI or MDIX). An explanation of each configuration item follows:

Enable

Setting Description Factory Defaul t

checked Allows data transmission through the port.
unchecked Immediately shuts off port access.

enabled

ATTENTION

If a connected device or sub-network is wreaking havoc on the rest of the network, the Disable
option under Advanced Settings/Port gives the administrator a quick way to shut off access
through this port immediately.

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Description

Setting Description Factory Defaul t

Media type Displays the media type for each module’s port N/A

Name

Setting Description Factory Defaul t

Max. 63 Characters Specify an alias for each port, and assist the

administrator in remembering important
information about the port.
E.g., PLC 1

None

Speed

Setting Description Factory Defaul t

Auto Allows the port to use the IEEE 802.3u protocol

to negotiate with connected devices. The port and
connected devices will determine the best speed

for that connection.
100M-Full
100M-Half
10M-Full
10M-Half

Choose one of these fixed speed options if the

opposing Ethernet device has trouble

auto-negotiating line speed.

Auto

FDX Flow Ctrl

This setting enables or disables the flow control capability of this port when the “port transmission
speed” setting is in “auto” mode. The final result will be determined by the “auto” process
between the EDS and connected devices.

Setting Description Factory Defaul t

Enable Enables flow control for this port when in

auto-negotiate mode.
Disable Disables flow control for this port when in

auto-negotiate mode.

Disable

MDI/MDIX

Setting Description Factory Defaul t

Auto Allows the port to auto detect the port type of the

opposing Ethernet device and change the port

type accordingly.
MDI

MDIX

Choose the MDI or MDIX option if the opposing

Ethernet device has trouble auto-negotiating port

type.

Auto

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Network Parameters

The Network configuration allows users to config ure both IPv4 and IPv6 parameters for
management access over the network. This Moxa Ethernet switch supports both IPv4 and IPv6,
and can be managed through either of these address types. An explanation of each configuration
item follows.

IPv4

The IPv4 settings include the switch’s IP address and subnet mask, as well as the IP address of the
default gateway. In addition, input cells are provided for the IP addresses of a 1st and 2nd DNS
server.

IPv6

IPv6 setting includes two distinct address types – Link-Local Unicast address and Global Unicast
address. A Link-Local address makes the switch accessible over IPv6 for all devices attached to
the same local subnet. To connect to a larger network with multiple segments, the switch must be
configured with a Global Unicast address.

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Global Unicast Address Prefix (Prefix Length: 64 bits)

Setting Description Factory Default

Global Unicast Address
Prefix

The prefix value must be formatted according
to RFC 2373 “IPv6 Addressing Architecture,”
using 8 colon-separated 16-bit he xadeci mal
values. One double colon may be used in the
address to indicate the appropriate number of
zeros required to fill the undefined fields.

None

Global Unicast Address

Setting Description Factory Default

None Display IPv6 Global Unicast address.

The network portion of Global Unicast
address can be configured by specifying the
Global Unicast Prefix and using a EUI-64
interface ID in the low order 64 bits. The host
portion of Global Unicast address is
automatically generated using the modified
EUI-64 form of the interface identifier
(Switch’s MAC address)

::

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Link-Local Address

Setting Description Factory Default

None

The network portion of Link-Local address is
FE80 and the host portion of Link-Local
address is automatically generated using the
modified EUI-64 form of the interface
identifier (Switch’s MAC address)

FE80 :: (EUI-64
form of the MAC
address)

Neighbor Cache

Setting Description Factory Default

None

The information in the neighbor cache that
includes the neighboring node IPv6 address,
the corresponding Link-Layer address, and
current state of the entry.

None

Time

The Time configuration page lets users set the time, date, and other settings. An explanation of
each setting is given below the figure.

The EDS has a time calibration function based on information from an NTP server or user
specified Time and Date information. Functions such as Auto warning “Email” can add real-time
information to the message.

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NOTE

The EDS does not have a real time clock. The user must update the Current Time and Current
Date to set the initial time for the EDS after each reboot, especially when the network does not
have an Internet connection for an NTP server or there is no NTP server on the LAN.

Current Time

Setting Description Factory Default

User adjustable time. The time parameter allows configuration of the

local time in local 24-hour format.

None (hh:mm:ss)

Current Date

Setting Description Factory Default

User adjustable date. The date parameter allows configuration of the

local date in yyyy/mm/dd format.

None

(yyyy/mm/dd)

Daylight Saving Time

Daylight saving time (also know as DST or summer time) involves advancing clocks (usually 1
hour) during the summer time to provide an extra hour of daylight in the afternoon.

Start Date

Setting Description Factory Def au l t

User adjustable date.

The Start Date parameter allows users to
enter the date that daylight saving time
begins.

None

End Date

Setting Description Factory Default

User adjustable date.

The End Date parameter allows users to
enter the date that daylight saving time
ends.

None

Offset

Setting Description Factory Default

User adjustable hour.

The offset parameter indicates how many
hours forward the clock should be
advanced.

None

System Up Time

Indicates the EDS’s up time from the last cold start. The unit is seconds.

Time Zone

Setting Description Factory Default

User selectable time zone The time zone setting allows conversion

from GMT (Greenwich Mean Time) to
local time.

GMT (Greenwich
Mean Time)

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NOTE

Changing the time zone will automatically correct the current time. You should configure the
time zone before setting the time.

Time Server IP/Name

Setting Description Factory Default

1st Time Server IP/Name IP or Domain address (e.g., 192.168.1.1 or

time.stdtime.gov.tw or time.nist.gov).

2nd Time Server IP/Name

The EDS will try to locate the 2nd NTP Server
if the 1st NTP Server fails to connect.

None

Time Server Query Period

Setting Description Factory Default

Query Period This parameter determines how frequently the

time is updated from the NTP server.

600 seconds

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IEEE 1588 PTP

The following information is taken from the NIST website at http://ieee1588.nist.gov/intro.htm:
Time measurement can be accomplished using the IEEE Standard for a Precision Clock

Synchronization Protocol for Networked Measurement and Control Systems (IEEE 1588-2008) to
synchronize real-time clocks incorporated within each component of the electrical power system
for power automation applications.

IEEE 1588, which was published in November 2002, expands the performance capabilities of
Ethernet networks to control systems that operate over a communication network. In recent years
an increasing number of electrical power systems have been using a more distributed architecture
with network technologies that have less stringent timing specifications. IEEE 1588 generates a
master-slave relationship between the clocks, and enforces the specific timing requirements in
such power systems. All devices ultimately get their time from a clock known as the grandmaster
clock. In its basic form, the protocol is intended to be administration free.

Turbo Ring DIP Switches

The Turbo Ring DIP Switch page allows users to disable the four DIP switches located on the
EDS’s outer casing. When enabled, the DIP switches can be used to configure basic settings for
either the “Turbo Ring” protocol or “Turbo Ring V2” protocol. A complete description of the
settings is given below.

NOTE

The proprietary “Turbo Ring” protocol (recovery time < 300 ms) was developed by Moxa in
2003 to provide better network reliability and faster recovery time for redundant ring topologies.
The “Turbo Ring V2” protocol (recovery time < 20 ms), which was released in 2007, supports
additional redundant ring architectures.

In this manual, we use the terminology “Turbo Ring” ring and “Turbo Ring V2” ring to
differentiate between rings configured for one or the other of these protocols.

For a detailed description of “Turbo Ring” and “Turbo Ring V2,” please refer to the Using
Communication Redundancy section later in this chapter.

How to Enable or Disable the Turbo Ring DIP Switches

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Disable the Turbo Ring DIP Switch

Setting Description Factory Default

Enable the Turbo
Ring DIP
Switches

The four DIP switches are enabled when the
“Disable the Turbo Ring DIP Switch” box is
not checked.

Disable the Turbo
Ring DIP
Switches

The four DIP switches are disabled when the
“Disable the Turbo Ring DIP Switch” box is
checked.

Not checked (i.e., the
Turbo Ring DIP Switches
are enabled by default)

Set DIP switch as Turbo Ring / Set DIP switch as Turbo Ring V2

Setting Description Factory Default

Set DIP switch as
Turbo Ring

Select this option to enable the Turbo Ring DIP
switches to configure the EDS for a “Turbo
Ring” ring.

This is the default if you do
NOT reset the switch to
factory default settings
(provided you upgraded the
firmware for Turbo Ring
V2).

Set DIP switch as
Turbo Ring V2

Select this option to enable the Turbo Ring DIP
switches to configure the EDS for a “Turbo
Ring V2” ring.

This is the default if you
DO reset the switch to
factory default settings
(provided you upgraded the
firmware for Turbo Ring
V2).

NOTE

If you upgrade the firmware of your EDS from Turbo Ring to Turbo Ring V2, but do no t re set the
switch to factory defaults, the DIP switches will be set to configure the EDS for a “Turbo Ring”
ring. If you reset the switch to factory defaults, the DIP switches will be set to configure the EDS
for a “Turbo Ring V2” ring.

How to Configure the Turbo Ring DIP Switches

The Turbo Ring DIP Switches are set to the OFF position at the factory.

NOTE

The four DIP Switches are used to configure both the “Turbo Ring”
and “Turbo Ring V2” protocols, depending on which protocol is
active. To select which protocol the EDS will use, start the user
interface software, and then use the left menu to navigate to the
Communication Redundancy page. To use one of the Turbo Ring
protocols for the EDS, select either “Turbo Ring” or “Turbo Ring V2”
in the Redundancy Protocol drop-down box. See the Configuring
“Turbo Ring” and “Turbo Ring V2” section in thi s chapter for
details.

12

------

MASTER

COUPLER

TURBO
RING

34

The following tables show how to use the DIP switches to configure the EDS for “Turbo Ring” or
“Turbo Ring V2.”

NOTE

DIP switch 4 must be set to the ON position to enable DIP switches 1, 2, and 3. If DIP switch 4 is
set to the “OFF” position, then DIP switches 1, 2, and 3 will all be disabled.

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“T urbo Ring” DIP Switch Settings

DIP 1 DIP 2 DIP 3 DIP 4

ON: Enables this EDS
as the Ring Master.

ON: Enables the
default “Ring
Coupling” ports.

ON

: Activates DIP
switches 1, 2, 3 to
configure “Turbo
Ring” settings.

Reserved for future
use.

OFF

: This EDS will
not be the Ring
Master.

OFF

: Do not use this
EDS as the ring
coupler.

OFF

: DIP switches 1,

2, 3 will be disabled.

“Turbo Ring V2” DIP Switch Settings

DIP 1 DIP 2 DIP 3 DIP 4

ON: Enables the
default “Ring
Coupling (backup)”
port.

ON

: Enables this EDS

as the Ring Master.

ON: Enables the
default “Ring
Coupling” port.

ON

: Activates DIP
switches 1, 2, 3 to
configure “Turbo Ring
V2” settings.

OFF: Enables the
default “Ring
Coupling (primary)”
port.

OFF

: This EDS will
not be the Ring
Master.

OFF

: Do not use this

EDS as a ring coupler.

OFF: DIP switches 1,
2, 3 will be disabled.

NOTE

The DIP 1 setting will only be active if DIP 3 is in the ON position. If you set DIP 3 to OFF, then
the default Ring Coupling port will NOT be enabled, even if DIP 1 is ON.

Protocol Default Turbo Ring Ports Default Ring Coupling Port(s)

Tur bo Ring

EDS-505A

: ports 4 and 5

EDS-508A

: ports 7 and 8

EDS-505A

: ports 2 and 3

EDS-508A

: ports 5 and 6

Tur bo Ring V2

EDS-505A

: ports 4 and 5

EDS-508A

: ports 7 and 8

EDS-505A

: port 2

EDS-508A

: port 5

NOTE

The Turbo Ring Ports and Coupling Ports will be added automatically to all VLANs if you set
DIP Switch 4 to the “ON” position.

NOTE

If you do not enable any of the EDS-508A/505A switches to be the Ring Master, the Turbo Ring
protocol will automatically choose the EDS-508A/505A with the smallest MAC address range to
be the Ring Master. If you accidentally enable more than one EDS-508A/505A to be the Ring
Master, these EDS-508A/505A switches will auto-negotiate to determine which one will be the
Ring Master.