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Advantech EKI-1200 Series User Manual

Advantech EKI-1200 Series User Manual

1/2/4-port modbus gateways
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1/2/4-port Modbus Gateways

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Summary of Contents for Advantech EKI-1200 Series

  • Page 1 User Manual EKI-1200 Series 1/2/4-port Modbus Gateways...
  • Page 2 No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any means without the prior written permission of Advantech Co., Ltd. The information provided in this manual is intended to be accurate and reliable.

  • Page 3: Declaration Of Conformity

    This product has passed the CE test for environmental specifications when shielded cables are used for external wiring. We recommend the use of shielded cables. This type of cable is available from Advantech. Please contact your local supplier for ordering information.

  • Page 4: Warnings, Cautions, And Notes

    Document Feedback To assist us with improving this manual, we welcome all comments and constructive criticism. Please send all feedback in writing to support@advantech.com. Packing List Before system installation, check that the items listed below are included and in good condition.

  • Page 5: Safety Instructions

    In accordance with IEC 704-1:1982 specifications, the sound pressure level at the operator’s position does not exceed 70 dB (A). DISCLAIMER: These instructions are provided according to IEC 704-1 standards. Advantech disclaims all responsibility for the accuracy of any statements contained herein. EKI-1200 User Manual...

  • Page 6: Safety Precautions - Static Electricity

    Safety Precautions - Static Electricity Follow these simple precautions to protect yourself from harm and the products from damage. To avoid electrical shock, always disconnect the power from the PC chassis  before manual handling. Do not touch any components on the CPU card or other cards while the PC is powered on.

  • Page 7: Table Of Contents

    Contents Chapter Introduction..........1 Overview ....................2 Product Features..................2 Chapter Getting Started........3 Understanding Modbus Gateways ............4 2.1.1 Protocol Overview................. 4 Figure 2.1 Modbus System Architecture 1........5 Figure 2.2 Modbus System Architecture 2........5 2.1.2 Modbus RTU................. 6 2.1.3 Modbus ASCII................
  • Page 8 Figure 2.18EKI-1211 Dimensions..........18 Figure 2.19EKI-1221 Dimensions..........19 Figure 2.20EKI-1222 Dimensions..........19 Figure 2.21EKI-1224 Dimensions  ........... 19 Connecting Hardware ................20 2.4.1 DIN Rail Mounting............... 20 Figure 2.22Installing the DIN Bracket (EKI-1211 Series) ... 20 Figure 2.23Installing the DIN-Rail Mounting Kit (EKI-1211 Series) Figure 2.24Correctly Installed DIN Rail Kit .........
  • Page 9 Figure 3.14Network Settings Overview ........46 Table 3.5: Network Settings ............46 Figure 3.15Reset Device ............47 Administrator Settings ................48 3.5.1 Locate the Serial Device Server ..........48 Figure 3.16Locate the Serial Device Server ....... 48 3.5.2 Securing the Serial Device Server ..........49 Figure 3.17Lock the Serial Device Server ........
  • Page 10 4.7.1 Basic ................... 76 Figure 4.14Port Configuration > Basic ........76 Table 4.11:Basic................. 77 4.7.2 Operation ..................77 Figure 4.15Client Mode .............. 77 Figure 4.16Server Mode............. 78 Figure 4.17Port Configuration > Operation > Modbus Server Mode Table 4.12:Modbus Server Mode ..........79 Figure 4.18Port Configuration >...
  • Page 11 (EKI-122x) ..............93 4.10 Tools ....................... 94 4.10.1 Ping..................... 94 Figure 4.38Tools > Ping ............. 94 Table 4.21:Ping ................94 4.10.2 Modbus Scan (EKI-122x)............95 Figure 4.39Tools > Modbus Scan..........95 Table 4.22:Modbus Scan (EKI-122x) ......... 96 4.10.3 Modbus Polling (EKI-122x) ............96 Figure 4.40Tools >...
  • Page 12 EKI-1200 User Manual...

  • Page 13: Chapter 1 Introduction

    Chapter Introduction...

  • Page 14: Overview

    485 serial data communication. The EKI-1200 Series allows users to select Client or Server operation for each serial port. The EKI-1200 Series not only enables an Ether- net client to control serial servers but also allows serial clients to control Ethernet or serial servers.

  • Page 15: Chapter 2 Getting Started

    Chapter Getting Started...

  • Page 16: Understanding Modbus Gateways

    Ethernet and share networks quickly and cost-effectively. The EKI-1200 Series is a network-based Modbus gateway for integrating new and existing Modbus/RTU and Modbus/ASCII serial devices with newer TCP/IP network- based devices. Manufacturers, system integrators, and end users can now take advantage of Modbus gateways to create networked applications for remotely man- aging and accessing data from their control devices—something that was not possi-...
  • Page 17 The basic system architecture is as below: Figure 2.1 Modbus System Architecture 1 Figure 2.2 Modbus System Architecture 2 EKI-1200 User Manual...

  • Page 18: Modbus Rtu

    2.1.2 Modbus RTU The Modbus/RTU protocol defines how a “Client” device polls one or more “Server” devices to read and write data in real time over RS-232, RS-422, or RS-485 serial communication. When using RTU mode, each 8-bit byte in a message contains two 4-bit hexadecimal characters.

  • Page 19: Specifications

    Specifications Table 2.2: Specifications Specifications Description EKI-1211-A: 1 x RJ45 + 1 x RS-232/422/485 EKI-1221-CE: 2 x RJ45 + 1 x RS-232/422/485 EKI-1221I-CE: 2 x RJ45 + 1 x RS-232/422/485 EKI-1221CI-DE: 2 x RJ45 + 1 x RS-232/422/485 EKI-1222-CE: 2 x RJ45 + 2 x RS-232/422/485 I/O Port EKI-1222I-CE: 2 x RJ45 + 2 x RS-232/422/485 Interface...

  • Page 20: Hardware

    , redundant dual inputs Win11, WinServer2016, WinServer2019, Win- OS Support for Utility Server2022, WinXP, Win7, Win10, Win2012R2, Win2008R2, Win8.1, Win8 Utility Advantech EKI Device Configuration Utility Software Modbus RTU Client/Server mode Operation Modes Modbus ASCII Client/Server mode Configuration Windows Utility, Web Browser...
  • Page 21 Table 2.3: EKI-1211 Front View Item Description Terminal block Connect cabling for power wiring. Serial port DB9 pin-out, supports RS-232/422/485 System LED panel See “LED Indicators” on page 26 for further details. Ground terminal Screw terminal used to ground chassis. The following view depicts the EKI-1221.
  • Page 22 The following view depicts the EKI-1222. Figure 2.5 EKI-1222 Front View Table 2.5: EKI-1222 Front View Item Description System LED panel See “LED Indicators” on page 27 for further details. Default button Press for at least 10 secs. to rest device to default settings. ETH port RJ45 ports x 2 Serial port...
  • Page 23 The following view depicts the EKI-1224. Figure 2.6 EKI-1224 Front View Table 2.6: EKI-1224 Front View Item Description System LED panel See “LED Indicators” on page 27 for further details. Default button Press for at least 10 secs. to rest device to default settings. ETH port RJ45 ports x 2 Serial port...

  • Page 24: Rear View

    2.3.2 Rear View The following view depicts the EKI-1211. Figure 2.7 EKI-1211 Rear View Table 2.7: EKI-1211 Rear View Item Description Screw holes (2) used in the installation of a DIN mounting M2 screw holes bracket or wall mounting. EKI-1200 User Manual...
  • Page 25 The following view depicts the EKI-1221 and EKI-1222. Figure 2.8 EKI-1221 and EKI-1222 Rear View Table 2.8: EKI-1221 and EKI-1222 Rear View Item Description DIN-Rail mounting Mounting plate used for the installation to a standard DIN plate rail. The following view depicts the EKI-1224. Figure 2.9 EKI-1224 Rear View EKI-1200 User Manual...

  • Page 26: Left View

    Table 2.9: EKI-1224 Rear View Item Description DIN-Rail mounting Mounting plate used for the installation to a standard DIN rail. plate 2.3.3 Left View The following view depicts the EKI-1211. Figure 2.10 EKI-1211 Left View Table 2.10: EKI-1211 Left View Item Description Ground terminal...

  • Page 27: Top View

    2.3.4 Top View The following view depicts the EKI-1211. Figure 2.11 EKI-1211 Top View Table 2.11: EKI-1211 Top View Item Description Terminal block Connect cabling for power wiring ETH port RJ45 ports x 1 The following view depicts the EKI-122x. Figure 2.12 EKI-122x Top View Table 2.12: EKI-122x Top View Item...

  • Page 28: Bottom View

    The following view depicts the EKI-1224. Figure 2.13 EKI-1224 Top View Table 2.13: EKI-1224 Top View Item Description Terminal block Connect cabling for power and alarm wiring Ground terminal Screw terminal used to ground chassis Screw holes (4) wall mount installation. The device is Wall mounting holes designed with top and bottom side screw holes for wall mount bracket.

  • Page 29: Led Indicators

    The following view depicts the EKI-122x. Figure 2.15 EKI-122x Bottom View Table 2.15: EKI-122x Bottom View Item Description Screw holes (4) wall mount installation. The device is Wall mounting holes designed with top and bottom side screw holes for wall mount bracket.

  • Page 30: Dimensions

    Table 2.17: EKI-122x LED Indicators LED Name LED Color Description Green Power 1 is on Power 1 is off, or power error condition exists Green Power 2 is on Power 2 is off, or power error condition exists The device server has been located by utility’s Amber location function Status...
  • Page 31 The following view depicts the EKI-1221. Figure 2.19 EKI-1221 Dimensions The following view depicts the EKI-1222. Figure 2.20 EKI-1222 Dimensions The following view depicts the EKI-1224. Figure 2.21 EKI-1224 Dimensions  EKI-1200 User Manual...

  • Page 32: Connecting Hardware

    Connecting Hardware 2.4.1 DIN Rail Mounting The DIN rail mount option is the quickest installation option. Additionally, it optimizes the use of rail space. The metal DIN rail kit is secured to the rear of the switch. The device can be mounted onto a standard 35 mm (1.37”) x 7.5 mm (0.3”) height DIN rail.
  • Page 33 Once the DIN rail is seated correctly in the DIN rail clip, press the front of the switch to rotate the switch down and into the release tab on the DIN rail clip. If seated correctly, the bottom of the DIN rail should be fully inserted in the release tab.
  • Page 34 2.4.1.2 Installing the DIN-Rail Mounting Kit (EKI-122x Series) Position the rear panel of the switch directly in front of the DIN rail, making sure that the top of the DIN rail clip hooks over the top of the DIN rail, as shown in the following illustration.
  • Page 35 Grasp the bottom of the switch and slightly rotate it upwards. If there is resis- tance, the switch is correctly installed. Otherwise, re-attempt the installation pro- cess from the beginning. 2.4.1.3 Removing the DIN-Rail Mounting Kit (EKI-1211 Series) Ensure that power is removed from the switch, and disconnect all cables and connectors from the front panel of the switch.
  • Page 36 2.4.1.4 Removing the DIN-Rail Mounting Kit (EKI-122x Series) Ensure that power is removed from the switch, and disconnect all cables and connectors from the front panel of the switch. Push down on the top of the DIN rail clip release tab with your finger. As the clip releases, lift the bottom of the switch, as shown in the following illustration.

  • Page 37: Wall Mounting

    2.4.2 Wall-Mounting The wall mounting option provides better shock and vibration resistance than the DIN rail vertical mount. 2.4.2.1 Installing on EKI-1211 Devices Note! When installing, make sure to allow for enough space to properly install the cabling. Before the device can be mounted on a wall, you will need to remove the DIN rail plate.
  • Page 38 Figure 2.30 Securing Wall Mounting Screws Note! The accessory does not come with wall screws for fixing the system to the wall. Make sure the screws dimensions are suitable for use with the wall mounting plate. Do not completely tighten the screws into the wall. A final adjustment may be needed before fully securing the wall mounting plates on the wall.
  • Page 39 2.4.2.2 Installing on EKI-122x Devices Note! When installing, make sure to allow for enough space to properly install the cabling. Before the device can be mounted on a wall, you will need to remove the DIN rail plate. Rotate the device to the rear side and locate the DIN mounting plate. Remove the screws securing the DIN mounting plate to the rear panel of the switch.
  • Page 40 Once the wall mounting plates are secure on the device, you will need to attach the wall screws (x4). Locate the installation site and place the switch against the wall, making sure it is the final installation location. Use the wall mount plates as a guide to mark the locations of the screw holes. Drill four holes over the four marked locations on the wall, keeping in mind that the holes must accommodate wall sinks in addition to the screws.

  • Page 41: Serial Connection

    Once the device is installed on the wall, tighten the screws to secure the device. 2.4.3 Serial Connection EKI-1200 Series provides up to four ports DB9 (male) connectors. RS-232/422/485 pin assignments as below: Figure 2.35 DB9 Pin Assignment Table 2.18: Serial Connection...

  • Page 42: Power Connections

    2.4.4 Terminal Block (RS-422, RS-485) The DE versions have a terminal block connector for RS-422 and RS-485 signals. Table 2.19: Terminal Block (RS-422, RS-485) RS-422 (RS485-4W) RS-485 DATA+ DATA- 2.4.5 Power Connections 2.4.5.1 Connecting the Power Adapter The EKI-1211 offers three types of power adapters (available for separate purchase) to meet power requirements.
  • Page 43 2.4.5.2 Wiring the Power Inputs The EKI-122x-CE Series supports dual 12 to 48 VDC power inputs and power-fail relay output while the EKI-1211 supports 9 to 36 VDC power inputs. The series consist of one terminal block connector. See the following steps to wire the power wire.
  • Page 44 The following figure illustrates a P-Fail alarm application example. The P-Fail alarm contacts are visible on the front view of the terminal block. Figure 2.38 Power Wiring for EKI-1200-CE Series You can connect an alarm indicator, buzzer or other signaling equipment through the relay output.
  • Page 45 Chapter Configuration...

  • Page 46: Configuration Utility Overview

    The Advantech EKI Device Configuration Utility is an excellent tool for managing device servers. It allows you to connect to and configure both local and remote Advantech serial device servers with ease. The utility provides access to the follow- ing functions: Configure network settings (set the IP address, gateway address, and subnet ...
  • Page 47 Figure 3.1 InstallShield Wizard 1 of 4 The Software License Agreement displays, press I Agree to continue or Cancel to stop the installation. Figure 3.2 InstallShield Wizard 2 of 4 EKI-1200 User Manual...
  • Page 48 The InstallShield continues and a status screen display. The default installation path is C:\Program Files\EKI Device Configuration Utility. Figure 3.3 InstallShield Wizard 3 of 4 EKI-1200 User Manual...
  • Page 49 Once the installation of the package is finished a Configuration Utility Setup screen display. Click Finish to conclude the process and exit the InstallShield Wizard. Figure 3.4 InstallShield Wizard 4 of 4 EKI-1200 User Manual...
  • Page 50 Menu Bar You can open the Configuration Utility from the Windows Start Menu by clicking Start > All Programs > EKI Device Configuration Utility > EKI Device Configuration Utility. The Configuration Utility displays as shown in the following figure. Figure 3.5 Configuration Utility Overview Table 3.1: Menu Bar Item Description...

  • Page 51: Quick Tool Bar

    Quick Tool Bar The Advantech EKI Device Configuration Utility makes use of a Quick Tool Bar menu to allow quick access to the management functions. See the following figure for fur- ther information. Figure 3.6 Quick Tool Bar Overview Table 3.2: Quick Tool Bar...

  • Page 52: Utility Settings

    3.4.1 Utility Settings 3.4.1.1 Main Form Setting Click View > Settings to configure utility settings. Figure 3.7 View > Settings > Main Form Setting Table 3.3: Quick Tool Bar Item Description Main Window Settings Maximum Main Window Check the box to enable the limiting of main windows on-load to On Load the maximum value.
  • Page 53 3.4.1.2 Device Manager Figure 3.8 View > Settings > Device Manager Table 3.4: Quick Tool Bar Item Description Device Manager Tree View Grouping Click the drop-down menu to enable or disable grouping. Show Empty Device Check the check box to show empty device type node or not. Type Node Expand New Appended Check the check box to expand a new appended device node.

  • Page 54: Discovering Your Device Server

    Auto Searching Advantech Serial Device Server Configuration Utility will automatically search all the EKI-1200 Series device servers on the network and show them on the Serial Device Server List Area of the utility. The utility provides an auto-search function to show your device (s) by simply executing the configuration utility program from the Start Menu.
  • Page 55 Figure 3.10 Selecting a Group Click on the “+” before the device name, and the utility will expand the interfaces on this device server. Figure 3.11 Selecting a Device Click on each item to enter the configuration page to change the setting. The configu- ration will be introduced on following sections.
  • Page 56 Figure 3.12 Viewing Basic Settings EKI-1200 User Manual...

  • Page 57: Network Settings

    3.4.3 Network Settings This section explains how to configure the EKI-1200 Series network settings using the configuration utility to allow it to a serial device over a network connection. Click on the “+” before the model name (e.g. EKI-1222) to expand the device’s sub- menu listing.
  • Page 58 You can choose from four possible IP Configuration modes --- Static, DHCP, BOOTP, and DHCP/BOOTP. Figure 3.14 Network Settings Overview Table 3.5: Network Settings Item Description Static IP Static IP User defined IP address, Subnet Mask, and Default Gateway. DHCP Server assigned IP address, Subnet Mask, Default Gateway, and DHCP + Auto-IP DNS.
  • Page 59 Click Reboot to reboot the serial device server. Any configuration changes you have made since the last time you saved will be lost. To reset the device: Right-click a desired device to display the settings menu. Select Reset Device. Figure 3.15 Reset Device  EKI-1200 User Manual...

  • Page 60: Administrator Settings

    Administrator Settings 3.5.1 Locate the Serial Device Server When several serial device servers are connected to the network, identification of a specific serial device is possible through the Locate function. To locate the serial device server: From the device list frame, locate the desired device and right-click on it to dis- play the settings menu.

  • Page 61: Securing The Serial Device Server

    3.5.2 Securing the Serial Device Server 3.5.2.1 Lock the Serial Device Server The configuration utility provides a “Lock Device” function to make it more secure. To lock the serial device server: Right-click a desired device to display the settings menu. Select Lock Device.
  • Page 62 Enter a password. Retype the password entry to confirm the profile password. Figure 3.18 Enter a Password EKI-1200 User Manual...
  • Page 63 Right-click a desired device to display the settings menu. Select Reset Device to restart the serial device server and store your setting password into the mem- ory. Figure 3.19 Reset Device EKI-1200 User Manual...
  • Page 64 3.5.2.2 Unlock the Serial Device Server To unlock the serial device server: Right-click a desired device to display the settings menu. Select Unlock Device. Figure 3.20 Unlock the Serial Device Server Enter the password as entered in the Lock Device procedure. If you forgot the password, you must restore the setting of the serial device server to the factory defaults, which will be introduced in the next section.

  • Page 65: Restore To Factory Default Settings

    3.5.3 Restore to Factory Default Settings The configuration utility provides the function to restore the serial device server to factory default settings. Figure 3.21 Restore to Factory Default Settings The confirm message will display after clicking Restore to Factory Default Set- tings.

  • Page 66: Resetting The Device

    3.5.4 Resetting the Device The Reset Device function allows you to reset the serial device server. The function disconnects both the ethernet and serial connections. The function also allows the serial device server to save new configuration settings to flash memory. Once a new setting is changed, you can use the Save function to accept the changes.

  • Page 67: Add To Favorite

    3.5.5 Add to Favorite The Add to Favorite function allows to easily map available devices to Favorites. By bookmarking specific devices, you can create quickly accessible shortcuts for exist- ing critical devices from the vast pool of locally or remotely networked EKI devices. Figure 3.23 Add to Favorite ...

  • Page 68: Update Firmware

    Note! Be sure that the host PC Ethernet network domain is as same as the EKI-1200 Series serial device server or the host PC can establish the TCP connection with the serial device server while doing the updating firmware process.

  • Page 69: Chapter 4 Web Interface

    Chapter Web Interface...

  • Page 70: Overview

    Overview An EKI Modbus gateway can be configured through a web interface. By using a stan- dard web browser, the same procedure as with the Windows configuration utility can be used. In the browser’s address field, enter the IP Address of your EKI serial device server.

  • Page 71: Accessing The Web Page

    4.2.2 Accessing the Web Page Once the device is installed and connected, power on the device. The following infor- mation guides you through the logging in process. Launch your web browser on the PC. In the browser’s address bar, type the device’s default IP address are: Eth1, 10.0.0.1;...

  • Page 72: System

    System You can change the Device Name and Device Description on this page. You can also modify the Timezone settings. To access this page, click System. Figure 4.2 System (EKI-122x) EKI-1200 User Manual...
  • Page 73 Figure 4.3 System (EKI-1211) The following table describes the items in the previous figure. Table 4.1: System Item Description Firmware Displays the current firmware version of the device. version Revision Displays the revision number of the device. number Device Name Enter the device name: up to 31 alphanumeric characters. Device Enter the device description.
  • Page 74 Table 4.1: System Redundant Enter the number of Redundancy Enhanced Modbus IDs to configure. The gateway can map pairs of devices as a group, with one set as primary and one set as secondary (backup). Your Modbus clients access this group with one virtual server ID.

  • Page 75: Service (Eki-122X)

    Service (EKI-122x) The Service tab contains menu options for configuring the Modbus Agent, the Web Server, and RADIUS/LDAP/Local user management. 4.4.1 Modbus Settings The Modbus Settings screen covers basic settings. When in Modbus Legacy Mode, only the Listen Port is configurable on this screen. Disabling legacy mode enables several additional settings here.
  • Page 76 The following table describes the items in the previous figure. Table 4.2: Modbus Settings Item Description In Legacy Mode the gateway’s functionality matches that of earlier versions of Modbus the firmware. Turning off Legacy Mode will enable new parameters in several Lagacy areas of the UI.

  • Page 77: Modbus Agent (Eki-122X)

    4.4.2 Modbus Agent (EKI-122x) Agent Mode turns the gateway into a temporary data collector and allows it to query data from different stations, or Modbus addresses, and put them together in a contig- uous buffer memory region. A Modbus client can then access the rearranged data, and get all the data with only one query.
  • Page 78 The following table describes the items in the previous figure. Table 4.3: Modbus Agent* Item Description Enable/Disable Modbus Agent Mode. Modbus Agent Status Enter the TCP port for the Modbus Agent. This port should be dif- Modbus Agent Port ferent than the TCP port (502 by default) used by the ordinary Mod- bus Server Mode of the gateway.
  • Page 79 The Layout Overview gives a graphical representation of all the mapped addresses used by the Modbus Agent, as shown in Figure 3.5. It can help visualize the structure of the consolidated data. Figure 4.7 Modbus Agent - Layout Overview EKI-1200 User Manual...

  • Page 80: Web Server (Eki-122X)

    The following table describes the items in the previous figure. Table 4.4: Layout Overview Item Description Each block represents 1024 addresses. The color indicates the Global status of the block, and an expanded view of the selected block is shown in the Detail section. Memory usage shown in grids.

  • Page 81: Ldap And Radius Setting (Eki-122X)

    Note! HTTPS will not work without a certificate and private key. The SSL certif- icate and private key should both be contained in one .pem file. Upload the same file as both Certificate and Private Key. Note! All new configurations will take effect after rebooting. To reboot the device, click Tools >...
  • Page 82 The following table describes the items in the previous figure. Table 4.6: LDAP Setting Item Description Enter the string to indicate the IP address or DNS of the LDAP LDAP Server server. Enter the string to indicate the user name prefix to define the LDAP LDAP Key DN key.
  • Page 83 The following table describes the items in the previous figure. Table 4.7: RADIUS Setting Item Description Radius Server IP Enter the string to indicate the value for the address of the RADIUS Address server. Radius Server Port Enter the string to indicate the port for the RADIUS server. Radius Server Secret Passphrase Enter the string to indicate the passphrase used by the Passphrase...

  • Page 84: User Management (Eki-122X)

    4.4.5 User Management (EKI-122x) Users can be managed via LDAP, Radius or Local user management settings. If local user management is used, the user list is managed from this screen. A Web Enhanced Password must be set on the Passwords page in order to activate user management.

  • Page 85: Ethernet Configuration

    Note! All new configurations will take effect after rebooting. To reboot the device, click Tools > Reboot. Changing user management setting may cause you to lose access to the device! Make sure you have access permissions with your new set- tings.
  • Page 86 The following table describes the items in the previous figure. Table 4.9: User Management Item Description IPv4 Configuration Select the IP Address Setting mode: Static IP - Set a fixed IP configuration  DHCP/AutoIP - IP configuration set by DHCP server ...

  • Page 87: Ethernet Bridge (Eki-122X)

    Ethernet Bridge (EKI-122x) In Ethernet Bridge mode, both Ethernet interfaces use the same IP address. Either Spanning Tree Protocol (STP) or Redundancy Mode can be used to prevent loops and provide a backup communications path. Figure 4.13 Ethernet Bridge Configuration The following table describes the items in the previous figure.

  • Page 88: Port Configuration

    Note! All new configurations will take effect after rebooting. To reboot the device, click Tools > Reboot. Port Configuration The serial port configuration menu has Basic and Operation modes. 4.7.1 Basic The Basic menu allows for the configuration of the serial interface type, baud rate, parity, data / stop bits, and flow control for port configuration.

  • Page 89: Operation

    The following table describes the items in the previous figure. Table 4.11: Basic Item Description Click the drop-down menu to select a serial interface: RS-232, RS- Type 422, RS-485 or RS-485 4-wire. Enter a value to specify the baud rate. The value should conform to Baud Rate the current transmission speeds of connected devices when setting the baud rate.
  • Page 90 To translate TCP to RTU/ASCII, use Server Mode. Figure 4.16 Server Mode These are the options for Modbus Server Mode. Figure 4.17 Port Configuration > Operation > Modbus Server Mode EKI-1200 User Manual...
  • Page 91 Select the protocol of the Server Mode or Client Mode (RTU or Protocol ASCII). Specify the time duration in milliseconds for the EKI-1200 Series to wait for a response after it has issued a command while using Mod- bus/RTU or Modbus ASCII. After the timeout is expired and no...

  • Page 92: Monitor

    Select the protocol of the Server Mode or Client Mode (RTU or Protocol ASCII). Specify the time duration in milliseconds for the EKI-1200 Series to wait for a response after it has issued a command while using Mod- bus/RTU or Modbus ASCII. After the timeout is expired and no...

  • Page 93: Statistic (Eki-1211 Or Legacy Mode Enabled)

    The following table describes the items in the previous figure. Table 4.14: Setting (EKI-1211 or Legacy Mode Enabled) Item Description Operating Mode Display the current operation mode of the selected port. Baud Rate Display the current baud rate of the selected port. Data Bits Display the current data bits of the selected port.

  • Page 94: Connected Ip (Eki-1211 Or Legacy Mode Enabled)

    4.8.3 Connected IP (EKI-1211 or Legacy Mode Enabled) The Monitor Connected IP page allows for easy viewing of all connected device’s IP address, while the specific serial port is operating under “Client Mode”. To access this page, click Monitor > Connected IP. Figure 4.21 Monitor >...

  • Page 95: Status (Legacy Mode Disable)

    4.8.4 Status (Legacy Mode Disable) With Modbus Legacy Mode disabled, information on the serial port function is pre- sented in the Status section Figure 4.22 Monitor > Status The following table describes the items in the previous figure. Table 4.17: Status (Legacy Mode Disable) Item Description Display the TX count of the selected port.

  • Page 96: Just-In-Time (Jit) Diagnostics (Legacy Mode Disabled)

    4.8.6 Just-In-Time (JIT) Diagnostics (Legacy Mode Disabled) Just-In-Time Diagnostics settings are covered in section “4.7.10. JIT With Modbus Legacy Mode Disabled” on page 45. Syslogd The EKI serial device server provides the functionality to allow network devices to send event messages to a logging server, also known as a Syslog server, by way of the Syslogd function.

  • Page 97: Syslogd Message

    4.9.2 Syslogd Message After enabling the syslogd function, users can check the history in the syslogd mes- sage page. To access this page, click Syslogd > Syslogd Message. Figure 4.25 Syslogd > Syslogd Message The message types selected on the Syslogd Setting page will be displayed. If Just- In-Time (JIT) Diagnostics are enabled, those messages will also appear here.

  • Page 98: Modbus Port Mapping (Eki-1211 Or Legacy Mode Enabled)

    4.9.4 Modbus Port Mapping (EKI-1211 or Legacy Mode Enabled) Users can check the overview of the “Unit ID"/"serial port” mapping table of the Mod- bus Server Mode. It also records the error status of each individual Unit ID, which is very helpful while analyzing a Modbus communication.

  • Page 99: Modbus Server (Legacy Mode Disable)

    4.9.6 Modbus Server (Legacy Mode Disable) The Modbus Server screen includes diagnostic information such as addresses and ports, connection start/end time, receive/respond/fail-responding counters, etc. JIT options can also be enabled here. When enabled on this page versus the Monitor page, the JIT information is sorted by TCP Session instead of COM Port. Figure 4.29 Syslogd >...

  • Page 100: Modbus Agent Monitor (Eki-122X)

    4.9.7 Modbus Agent Monitor (EKI-122x) The Modbus Agent Monitor screen contains settings to log Just-In-Time diagnostics for your Modbus Agent channels to syslogd. Each channel that is set up on the Ser- vice > Modbus Agent screen can be configured independently. Figure 4.30 Syslogd >...

  • Page 101: Just-In-Time (Jit) Diagnostics (Eki-122X)

    4.9.8 Just-In-Time (JIT) Diagnostics (EKI-122x) The Just-In-Time (JIT) Diagnostics features of the Modbus gateway assist in trouble- shooting communications issues. JIT diagnostics can be configured in one of two ways, depending on whether or not Modbus Legacy Mode is enabled in the Service > Modbus Settings screen.
  • Page 102 Figure 4.33 Monitor > Port n > Just-In-Time Diagnostics (Server) Note! The JIT options will take effect when you click Apply. Rebooting the device will clear these options. 4.9.9.2 Modbus Client Mode (EKI-122x) The Modem Status can be seen on the Monitor > Port n page. Signals which are currently ON will be listed (e.g., RTS/CTS/DTR/DSR).
  • Page 103 4.9.9.3 JIT Logging By TCP Session JIT options on the Syslogd > Modbus Server page are selected by TCP session. Only connections still alive are available; disconnected sessions will be removed. Each distinct Source IP/Port and Destination IO/Port combination will be considered as different TCP session.
  • Page 104 4.9.10 Just-In-Time (JIT) with Modbus Legacy Mode Enabled (EKI- 122x) To use JIT diagnostics when Modbus Legacy Mode is enabled, you will need to change the Device Name on the System page to “ENABLE_JIT_DIAG” (without quotes) and Save your changes. On the Syslogd >...

  • Page 105: (Eki-122X)

    The following table defines the data included in each JIT level. Table 4.20: Just-In-Time (JIT) with Modbus Legacy Mode Enabled (EKI- 122x) Item Description Unable to Open COM Port Failed to enable RTU detection Cannot get LSP (State: 0x%x) Exception (EXPT) LSR_ERRORMASK (State: 0x%x) Write To Serial Failed Queue Full, Unable to make a reservation...

  • Page 106: Tools

    4.10 Tools The EKI Modbus gateway provides tools for access to ping and reset functions. 4.10.1 Ping The Ping page can help users diagnose ethernet problems. Users can use the ping page to ask the device to ping a specific target to check the Ethernet network status. The Ping page allows you to configure the test log page.

  • Page 107: Modbus Scan (Eki-122X)

    4.10.2 Modbus Scan (EKI-122x) Modbus Scan will scan for Modbus devices on the port and report the Server ID’s that are found. The scan sends requests to the specified target IP, port and range of Server IDs. The scan sends a specified Modbus request (default Read Register at address 0), and lists the Server IDs that respond to the request in the Result field.

  • Page 108: Modbus Polling (Eki-122X)

    The following table describes the items in the previous figure. Table 4.22: Modbus Scan (EKI-122x) Item Description Enter the IP address or host name of the station to ping. The initial value is blank. The IP Address or host name you enter is not retained across a power cycle.

  • Page 109: Reboot

    The following table describes the items in the previous figure. Table 4.23: Modbus Polling (EKI-122x) Item Description Enter the IP address or host name of the station to ping. The initial value is blank. The IP Address or host name you enter is not retained across a power cycle.

  • Page 110: Management

    4.11 Management The EKI serial device server allows for easy installation and maintenance and reli- able maintenance access from anywhere. With the reliable management tools avail- able, you can streamline staffing and troubleshooting requirements to a centralized system. 4.11.1 Change Password The Change Password function allows you to easily update your current password from a single menu.

  • Page 111: Secure Access Ip

    The following table describes the items in the previous figure. Table 4.24: Change Password Item Description Utility Password* New password Enter the character set for the defined password type. New password again Retype the password entry to confirm the profile password. Save Click Save to save the values and update the screen.

  • Page 112: Export Device Settings

    The following table describes the items in the previous figure. Table 4.25: Secure access IP Item Description Select the number of IP addresses to be configured for access. Access IP number Maximum 32 If set to zero, no IP access restrictions will apply. Unlisted User Permis- Set access permissions for addresses not listed on this page to sion...

  • Page 113: Firmware Upgrade (Eki-122X)

    The following table describes the items in the previous figure. Table 4.26: Import Device Settings Item Description Click Choose File to select the configuration file. Choose File Submit Click Submit to backup the settings. 4.11.5 Firmware Upgrade (EKI-122x) If HTTPS security is enabled, the device firmware can be updated from the web UI. The standard method for firmware updates is to use the Windows utility that is pack- aged with the firmware download.
  • Page 114 No part of this publication may be reproduced in any form or by any means, such as electronically, by photocopying, recording, or otherwise, without prior written permission from the publisher. All brand and product names are trademarks or registered trademarks of their respective companies. © Advantech Co., Ltd. 2025...

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