Weidmuller WI-MOD-E-G User Manual

Wireless ethernet modem & device server
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WI-MOD-E-G & WI-MOD-E-A
Wireless Ethernet Modem &
Device Server

User Manual

Version 2.16
Read and Retain For Future Reference
Rev. 2.16 
www.weidmuller.com  
 

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Summary of Contents for Weidmuller WI-MOD-E-G

  • Page 1: User Manual

    WI-MOD-E-G & WI-MOD-E-A Wireless Ethernet Modem & Device Server User Manual Version 2.16 Read and Retain For Future Reference Rev. 2.16  www.weidmuller.com     1 ...
  • Page 2 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual WEIDMULLER 821 Southlake Boulevard | Richmond, Virginia | 23236 Email: support@weidmuller.com Web: www.weidmuller.com WEIDMULLER Support Help-line USA 1-800-849-9343 Canada 1-800-268-4080 Mexico 01-222-2686267 Rest of the world +1 804 794 2887 ATTENTION! Incorrect termination of supply wires may cause internal damage and will void warranty.
  • Page 3 This device must accept any interference received, including interference that may cause undesired operation. This device must be operated as supplied by Weidmuller. Any changes or modifications made to the device without the written consent of Weidmuller may void the user’s authority to operate the device.
  • Page 4 Like all industrial electronic products, WEIDMULLER products can fail in a variety of modes due to misuse, age, or malfunction. We recommend that users and designers design systems using design techniques intended to prevent personal injury or damage during product operation, and provide failure tolerant systems to prevent personal injury or damage in the event of product failure.
  • Page 5 Repairs, alterations, modifications undertaken other than by an authorized Service Agent. WEIDMULLER liability under this warranty is limited to the replacement or repair of the product. This warranty is in lieu of and exclusive of all other warranties. This warranty does not indemnify the purchaser of products for any consequential claim for damages or loss of operations or profits and WEIDMULLER is not liable for any consequential damages or loss of operations or profits resulting from the use of these products.
  • Page 6: Table Of Contents

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual CONTENTS     CHAPTER 1 - INTRODUCTION ......... 8 Supplicant Re‐authenticate Period: .........  3 3   Enable Debug:  ................  3 3   1.0 - N ..........8 ETWORK OPOLOGY   WPA Enterprise - Supplicant (Client) Configuration .. 33  ...
  • Page 7 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual       Example 2 – Multiple Wireless Interfaces ....... 67 APPENDIX C - CHANNELS ........101   3.24 - M .......... 71 ODULE NFORMATION   802.11b/g ..............101   Module Information Webpage Fields ......71  ...
  • Page 8: Chapter 1 - Introduction

    The above models have the same functionality but use a different radio to communicate. The different radios do not communicate with each other, e.g. a WI-MOD-E-G will not communicate with a WI-MOD-E-A. Only modules of the same type are able to communicate wirelessly to each other.
  • Page 9: Access Point Vs Client

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Access Point vs Client The Access Point unit acts as the “wireless master” unit. The Access Point accepts and authorises links initiated but client units, and controls the wireless communications.
  • Page 10: Bridge Vs Router

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Bridge vs Router Each WI-MOD-E is configured with an IP address for the Ethernet side, and another for the wireless side. A Bridge connects devices within the same Ethernet network - for example, extending an existing Ethernet LAN.
  • Page 11: Getting Started Quickly

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 1.1 - Getting Started Quickly Most applications for the WI-MOD-E require little configuration. The WI-MOD-E has many sophisticated features, however if you don’t require these features, this section will allow you to configure the units quickly.
  • Page 12: Chapter 2 - Installation

    The maximum range achievable depends on the radio model, the regulated RF power permitted in your country, and whether you use separate transmit and receive antennas. If using a WI-MOD-E-G (2.4GHz) with a single antenna, 10 km (6 miles) can be achieved in USA, Canada and Australia (4W EIRP) and 2km in Europe (100mW EIRP).
  • Page 13: Antenna Diversity

    See Section 3.10 - “Advanced Radio Configuration” for details on configuring Antenna Diversity In North America the maximum allowable radiated power (EIRP) for a WI-MOD-E-G is 4 Watts, which is 10dB higher that the modules transmit power of 400mW. Therefore we can increase the antenna gain as long as overall system gain (antenna Gain –...
  • Page 14: Installation Tips

    The net gain of the antenna/cable configuration is determined by adding the antenna gain and the cable loss. For example, if using the WI-MOD-E-G a 10dBi antenna (7.8dBd) with 10 meters of Cellfoil (-5.6dB) has a net gain of 2.2dB (7.8dB – 5.6dB).
  • Page 15: Power Supply

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual antennas should be mounted as per the manufacturer’s instructions, with the parabolic grid at the “back” and the radiating element pointing in the direction of the transmission. Ensure that the antenna mounting bracket is well connected to “ground/earth”.
  • Page 16: Rs485 Serial Port

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Signal Ground Data Set Ready - always high when unit is powered on. Request to Send Clear to send Ring indicator RS485 Serial Port The RS485 port provides for communication between the WI-MOD-E unit and its host device using a multi-drop cable. Up to 32 devices may be connected in each multi-drop network.
  • Page 17: Discrete (Digital) Input/Output

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 2.4 - Discrete (Digital) Input/Output The WI-MOD-E has one on-board discrete/digital I/O channel. This channel can act as either a discrete input or discrete output. It can be monitored, or set remotely, or alternatively used to output a communications alarm status.
  • Page 18: Chapter 3 - Operation

    When an Access Point starts up it will scan all available channels from the selected groups and then select the quietest similar to the WI-MOD-E-G. It will then go into a scan mode for 60 seconds where it listens for any Radar signals.
  • Page 19: How A Link Connection Is Lost

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual How a Link connection is lost The Access Point refreshes the link status with a Client every time a message is received from that Client. If nothing is received from a Client for a period of 120 seconds, the Access Point sends a “link-check” message. If there is no response to the link-check a De-authenticate message is sent and the link is dropped.
  • Page 20: Selecting A Channel

    3.1 - Selecting a Channel 802.11b/g (2.4GHz) The WI-MOD-E-G conforms to the IEEE 802.11b/g Wireless LAN specification. The WI-MOD-E-G supports 13 x 20MHz, 12 x 10MHz and 13 x 5MHz radio channels in the 2412MHz to 2482MHz frequency range. Channels are country or region specific.
  • Page 21: A (5Ghz)

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 802.11a (5GHz) Figure 12 - 2.4GHz Channels The WI-MOD-E-A utilizes frequency bands within the range of 5.15 GHz and 5.825 GHz. This is broken into 4 distinct U- NII bands and each region (EU, US, AUS, NZ, etc.) have their own power and operational constraints, see Appendix C for more details.
  • Page 22: Dynamic Frequency Selection (Dfs)

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Dynamic Frequency Selection (DFS) Because of the push within the 802.11a market to open up new spectrum for unlicensed radio a mechanism called “Dynamic Frequency Selection” needed to be developed so that the 802.11 Wi-Fi could coexist with existing military and telecommunication radar systems.
  • Page 23: Method 1 - Set Pc To Same Network As Wi-Mod-E

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Method 1 - Change your computer settings so that the configuring PC is on the same network as the WI-MOD-E with factory default settings. This is the preferred method and is much less complicated than the second method. You will need a “straight-through”...
  • Page 24: Method 2 - Set Wi-Mod-E Network Address To Match The Local Network

    WI-MOD-E is issued by WEIDMULLER and matches the IP address 192.168.0.100. When you first connect to the WI-MOD-E, your web browser will issue a warning that WEIDMULLER is not a trusted authority. Ignore this warning and proceed to the configuration web page. To avoid seeing this warning in future, you can install the certificate into your browser.
  • Page 25 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual __,----'~~~~~~~~~`-----.__ `//====- ____,-'~` \_|// . /||\\ `~~~~`---.___./ ______-==. _-~o _,'` __,--' ,=='||\=_ ;_,_,/ _-'|- | \\`. '',/~7 " / _____ \\.`-_/ /|- _/ `-|--'~~`--_ \ `==-/ `| \'--===-' )-'\~' _,--"'...
  • Page 26: Quick Start Configuration

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.3 - Quick Start Configuration Figure 18 - Quick Start The WI-MOD-E has a Quick Start Configuration option, which will cover most important parameters that are needed to get an initial connection. This is the first stage of the module configuration. For most applications, no further configuration is required.
  • Page 27: Network Configuration

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.4 - Network Configuration Figure 19 - Network You can view or modify Ethernet network parameters by selecting the “Network” menu. When prompted for username and password, enter “user” as the username, and “user” as the password in the password field (This is the factory default –...
  • Page 28: Network Settings Webpage Fields

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual methods. Note: enabling this option will lower the security level of the network down to the weakest configured encryption level, ie WPA TKIP WPA-Enterprise (802.1x) removes the need to manage the Pre-shared Key (PSK) by using an external server to provide client authentication.
  • Page 29: Spanning Tree Algorithm

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Automatically requests its IP address from a DHCP server which assigns the IP Address automatically. For more information, refer to section 3.21 - “DHCP Server Configuration”, Default is unchecked. IP Address Bridge Mode - The IP address of the WI-MOD-E module.
  • Page 30 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual The Spanning Tree Algorithm maintains a single path between all nodes in a network, by forming a tree-like structure. The Bridge Priority determines where the node sits in the tree. A Bridge configured with the lowest priority (0) will become the root node in the network, and will direct traffic between each of its branches.
  • Page 31: Compatibility

    (3Add) (3Add) WI-MOD-E-G AP Y (Note 1) WI-MOD-E-G Sta N (Note 2) Notes: 1. Notes: Connection only if the WI-MOD-E-G is configured with a virtual Station (Client) which in turn connects to the WI-MOD-E-100 Access Point. Rev. 2.16  www.weidmuller.com     31 ...
  • Page 32: Security Menu

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 2. Connection indication in the “connectivity” pages however it is not a true connection (see “3 Address & 4 Address Modes” above). 3.7 - Security Menu Select the Radio Encryption level from the drop down menu on the Main index page and then press the “Save Changes”...
  • Page 33: Wpa / Wpa2

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual  Station then associates with the Access Point and joins the network. WPA / WPA2 When WPA Encryption is selected, 128bit Encryption keys are internally generated based on the Passphrase and System Address (ESSID).
  • Page 34: Certificate .Normal Operation

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.8 - Normal Operation After addresses are configured, the units are ready for operation. Refer to section 1 for an explanation on the operation of a Bridge and Router. Bridge Operation (Transparent Network) A bridge connects several Ethernet networks together, and makes them appear as a single Ethernet network to higher protocol layers.
  • Page 35 See APPENDIX C - for dB to mW conversion. Channel (AP Only) WI-MOD-E-G Radio Channels 1 to 13 (depending on country) may be configured at the Access Point. Refer 3.1 - “Selecting a Channel”. WI-MOD-E -A Radio channels can be individually set (AP only – Client ignores...
  • Page 36: Channel Selection

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual level. E.g. selecting 54 Mbps fixed data rate will reduce the transmit power from 400mW down to 125mW. This is to comply with 802.11 regulations. This interval is the period between beacon transmissions sent by an Access...
  • Page 37: Advanced Radio Configuration

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Figure 29 - 5GHz Channel Selection Note some of the Groups use DFS (Dynamic Frequency Selections) and if using these DFS channels you need to be aware that there will be a minimum 60 seconds scan/monitor time that the radio must perform to check there are no Military or Commercial Radars using the same frequency.
  • Page 38: Fixed Noise Floor

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual DTIM Period (AP only) DTIM sets which beacon frames incorporate extra information for low power sleeping client devices. Normally set this to 1. RTS frames can be used to help avoid radio collisions between two stations RTS Threshold that cannot directly hear each other.
  • Page 39: Serial Port Configuration

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.11 - Serial Port Configuration The WI-MOD-E has an RS-232, and an RS-485 port for serial communications. These ports may be used for different purposes. The WI-MOD-E offers three different serial functions, which are PPP server; Serial Gateway; and Modbus TCP to RTU Gateway.
  • Page 40: Serial Gateway (Server/Client/Multicast)

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Serial Gateway (Server/Client/Multicast) Serial Gateway functionality is available for both RS-232 and RS-485 ports independently, and enables serial data to be routed via the wired or wireless network connection. Serial Gateway functionality is similar to radio modem functionality, allowing point-to-point and multipoint serial data transfer.
  • Page 41: Modbus Tcp To Rtu Gateway

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Modbus TCP to RTU Gateway Client Access Point The Modbus TCP to RTU Gateway allows an Ethernet Modbus/TCP Client (Master) to communicate with a serial Modbus RS232 Modbus TCP RTU Slave. The WI-MOD-E makes this possible by internally...
  • Page 42: Serial Menu

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.12 - Serial Menu RS-232 / RS485 Serial Port Configuration (Common to all) RS232 Port Select the desired functionality. Select either PPP, Serial Gateway or Modbus TCP to RTU Data Rate The serial data rate desired.
  • Page 43: Rs485 Modbus Tcp/Rtu Converter

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Character Enter the maximum delay (in msec) between received serial characters before Timeout packet is sent via network. Packet Size The number of received bytes that will be buffered before a packet is sent via the network.
  • Page 44: Multicast Pipe Manager

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.13 - Multicast Pipe Manager Previously it has been difficult to connect a single TCP device, i.e. a Scada / DCS system to multiple remote multicast serial devices. Multicast Pipe allows this type of connection.
  • Page 45: Digital Input/Output

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.14 - Digital Input/Output The functionality of the shared Digital Input/Output pin may be configured via the “I/O Transfer” webpage. As this pin is shared, the Digital Input status will be ON when the Digital Output is set ON.
  • Page 46 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 4373 Serial Gateway Connection Status (RS485) inverted 4374 TCP-RTU Connection Status (RS232) inverted TCP-RTU Connection Status (RS485) inverted 4375 4376 TCP-RTU Modbus Server Connection Status inverted 4377 Multicast Pipe Connection Status inverted...
  • Page 47 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual An example of the Modbus functionality of the WI-MOD-E is illustrated here. In this example the status of the onboard digital input at C will be reflected at the onboard digital output at B. Also, 8 single bit registers from Modbus serial device D will be transferred to A.
  • Page 48: Modbus Tcp Configuration On I/O Transfer Menu

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Modbus TCP Configuration on I/O Transfer Menu: Enable Modbus TCP Check this box to enable the onboard Modbus TCP Server. All Modbus TCP Server (Slave) connections to the module IP Address and specified Modbus Server Device ID will be routed to the onboard I/O registers.
  • Page 49: Roaming

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.16 - Roaming Figure 38 - Roaming In certain cases a Client may be in a mobile situation and require a method of roaming to another Access Point. Normal network communications provides only basic roaming behavior which means as the client moves further from the AP it will go through a period of poor communication followed by a complete disconnection of the radio link.
  • Page 50 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual When Fast Roaming is enabled the Client goes off-channel and periodically performs a background scan to identify available AP’s. When AP’s are identified the RSSI is recorded as a potential connection. It takes 50msec to scan each channel, with a 1 second delay between each scanned channel.
  • Page 51: Repeaters (Wds)

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.17 - Repeaters (WDS) The range of a wireless network can be extended by allowing Access Points to behave as repeaters and forward traffic to other Access Points. Access Point to Access Point communications is also known as Wireless Distribution System (WDS).
  • Page 52: Wds Connections

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual  When VLAN’s are enabled, Router IP and Subnet are ignored and the WDS interface is bridged depending on membership to a VLAN Group.  Spanning Tree Protocol (STP) column only applies when two or more interfaces are bridged.
  • Page 53: Example 1 - Extending Range Using Wds

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual There are many different ways to setup wireless networks; often it depends on the devices you wish to connect and the existing network topology. The following pages show some examples of how to connect devices into different types of systems.
  • Page 54: Example 2 - Roaming With Wds Access Points

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Example 2 - Roaming with WDS Access Points Figure 43 - WDS Roaming Another common use for WDS is extending the range across a large wireless network but allowing roaming connections between access points or being able to switch to the next Access Point when out of range of the previous Access Point.
  • Page 55: Example 3 - Adding Redundancy

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Example 3 – Adding Redundancy In the example below, 4 x Access Points (A, B, C, & D) form a mesh network using only WDS bridge interfaces. Each of the Access Points may also have its own clients associated. Each Access Point is configured with a different SSID, meaning the clients associated with each Access Point are fixed.
  • Page 56: Example 4 - Wds Routed Network

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual that communicate using a different Encryption method e.g. 128 bit WEP and may not support the same Encryption method. Example 4 – WDS Routed Network An example of using WDS router interfaces to achieve a similar physical topology to the WDS bridge example discussed earlier is illustrated below.
  • Page 57 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual In addition to adding these WDS Connections, Site C & D will need a default gateway address configured so that the module can determine where to send traffic destined for the other networks. Also because Site A does not know how to get to Network’s 192.168.5.0 and 192.168.6.0 it requires rules to confirm the routing paths.
  • Page 58: Routing

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.18 - Routing When a WI-MOD-E receives an IP frame that is destined for an IP address on a different network, it checks if the network address matches the network address of one of its own interfaces (i.e. hard-wired Ethernet, or wireless Ethernet, or WDS) and forwards the frame appropriately.
  • Page 59 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual WI-MOD-E. Any message coming in with a 192.168.0.X IP address will be directed across the wireless interface to LAN The Routing Rules configuration page can be accessed by selecting the “Routing” link on any of the configuration web pages.
  • Page 60: Filtering

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.19 - Filtering Figure 54 - Filtering When configured as a Bridge, the WI-MOD-E will transmit all broadcast messages appearing at its wired Ethernet port. When the WI-MOD-E is configured as a Router, this does not occur.
  • Page 61: Mac Address Filter Configuration

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual When configuring a Whitelist it is important to add the Addresses of all devices connected to the WI-MOD-E wired Ethernet port, that communicate over the wireless link. It is particularly important to add the Address of the configuration PC to the Whitelist.
  • Page 62: Ip Address Filter Configuration

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual IP Address Filter Configuration: The IP filter allows can be used to permit or deny network access to specific devices through the use of Blacklists (blocking of traffic that matches a rule) and Whitelists (allow traffic that matches a rule).
  • Page 63: Dhcp Client Configuration

    IP address by a DHCP server (See section 3.21 - “ DHCP Server Configuration”). DNS is the system which translates internet names (such as www.weidmuller.com) to IP Addresses. The WEIDMULLER WI-MOD-E can act as a DNS Server for a local network. Name to IP address mapping are automatically updated by the built in DHCP server when it issues an IP address to a client unit.
  • Page 64: Vlan

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.23 - VLAN What is VLAN VLAN (Virtual Local Area Network) is a way of splitting a network into groups that could extend beyond a single traditional LAN to groups of LANs each identified with a different VLAN ID (VID). Using a VLAN, you can group users by logical connections instead of physical location;...
  • Page 65: Vlan Group

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual If more than one interface is added to a VLAN group, a separate bridge will be created for the VLAN Group. The configured interfaces for the VLAN Group will then be configured as ports on the bridge.
  • Page 66: Interface Membership

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Management The IP network mask of the Management IP, see above. Netmask Turns on Spanning Tree Protocol (STP) for the Bridge. STP prevents network loops Bridge STP that can cause broadcast storms.
  • Page 67: Example 2 - Multiple Wireless Interfaces

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Figure 59 - Example 1 Configuration Example 2 – Multiple Wireless Interfaces Another very desirable VLAN configuration for a wireless device is to support multiple virtual wireless networks. For example consider a corporate facility where separate networks may be provided for a) permanent staff; b) guests; and c) production network.
  • Page 68 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual As you can see the WI-MOD-E supports flexible VLAN functionality such that any of the available interfaces can have membership to particular VLAN(s) by assigning membership to one or more VLAN’s groups, virtually any possible topology can be achieved.
  • Page 69 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Figure 61 - Example 2 Configuration Rev. 2.16  www.weidmuller.com     69 ...
  • Page 70 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual The other VLAN groups each have an Ethernet and a wireless Interface configured. All Ethernet interfaces are tagged as they are all connected to a VLAN network, each wireless interface is configured as untagged to allow connection from untagged devices.
  • Page 71: Module Information

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.24 - Module Information Module Information Webpage Fields This configuration page is primarily for information purposes. With the exception of the password, the information entered here is displayed on the home configuration webpage of the WI-MOD-E.
  • Page 72: Client 1 Configuration

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Open configuration webpage with Internet Explorer at address https://192.168.0.1XX/ where XX is the last two digits of the module’s serial number When prompted for password, enter default username “user” and password “user”...
  • Page 73: Extending Range Using Repeaters

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Connect straight through Ethernet cable between PC and WI-MOD-E. Ensure configuration PC and WI-MOD-E are setup to communicate on the same network Set dipswitch to SETUP Power up unit, and wait for LINK led to cease flashing.
  • Page 74: Chapter 4 - Diagnostics

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual CHAPTER 4 - DIAGNOSTICS 4.0 - Diagnostics Chart LED Indicator Condition Meaning GREEN Normal Operation RED Continuously Supply voltage too low. OR Internal Module Fault RED At Power On Boot Loader delay at start-up...
  • Page 75: Connected Devices

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Connected Devices Figure 67 - Connected Devices Association ID: Every Client gets a unique temporary ID from the AP CHAN Channel: What radio channel is being used. Radio Data Rate:...
  • Page 76: Channel Survey (Utilisation)

    60 minutes; and every hour for the last 60 hours. The Weidmuller 802.11 Ethernet modem utilizes a half-duplex radio channel for communications. At any given time, an Access Point and its associated clients occupy a radio channel. These radio channels, or frequencies, are license free and may contain interference from any number of other radio transmitters.
  • Page 77 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Channel Survey screen displays a graph showing the percentage of time that a channel is being utilised by any of the following causes: 1. The connected modem is transmitting. 2. The connected modem is receiving valid data from another modem.
  • Page 78: Custom Survey

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual The third screen shot shows the average Channel Utilisation for each minute up to one hour. It will also give a running average for the total number of minutes up to 59 minutes.
  • Page 79: Example Two

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Example Two. In the second example we can see that chart one shows the amount of Data being received from Wi-Fi devices and chart two shows the amount of other noise that is being received. From this you can see that in the last 60 second period there was a 20 second interval with around 60-80 % channel Utilisation in this case from a 2.4GHz FHSS telemetry device.
  • Page 80: Throughput Test

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 4.4 - Throughput Test The performance of a wireless link is best measured in terms of the maximum throughput that can be achieved. The recommended method of measuring throughput is with the "Iperf" utility. Iperf has client and server functionality, where the server waits for a client connection.
  • Page 81: Throughput And Repeaters

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual that it has been enabled and the module has been reset. Each press of the “Measure Throughput” button will perform a TCP throughput test of 10 second duration. You will see the message “Performing Iperf Test” text and and if you look at the modules you will see the TX/Link & RX Led’s flashing very fast as it performs the test.
  • Page 82 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual It should also be noted that if using repeaters to extend the range there will be a reduction in throughput for each repeater hop. The following table shows the drop in throughput for each hop and for each of the channel widths.
  • Page 83: Statistics

    Figure 80 - Statistics The Statistics webpage is used for advanced debugging of WI-MOD-E. This webpage details the state of the WI-MOD-E and performance information. This page is typically useful to WEIDMULLER technical support personnel in diagnosing problems with the module.
  • Page 84: Network Traffic Analysis

    Shows an event log of the modules operation, used for diagnosing problems. System Log File Page can be saved and emailed to WEIDMULLER if requested. “Clear System Log” will clear out the log file and start fresh. Resets the module...
  • Page 85: Testing Radio Paths

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 4.7 - Testing Radio Paths Connection and Signal Strength The general procedure for radio range testing a link is fairly simple. Configure two units to form a link using automatic radio rates.
  • Page 86: Rssi

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual RSSI Weak Threshold Weak RSSI indication threshold Enable Throughput Test Enables or disables the Throughput test (independent of Radio Path Test (RSSI) Remote Device IP IP Address of the Remote device that you wish to path test...
  • Page 87: Remote Configuration

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Note: Advanced configuration settings such as Serial or I/O Transfer should be disabled and if using the Throughput Test, Iperf Server in the Advanced Radio Settings page on the Access Point must be enabled.
  • Page 88: Internal Diagnostics Modbus Registers

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 4.9 - Internal diagnostics Modbus Registers There are a number of internal diagnostic registers that can be accessed via Modbus TCP/RTU that will help with analyzing and diagnosing the radio network. To access these register the Modbus Server will need to be enabled and a Modbus Server address will need to be configured (See 3.15 - “Modbus I/O Transfer”...
  • Page 89: Statistic Registers

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Statistic Registers Register Module Description 4500 Both Total data packets received on the interface 4502 Both Received frames with antenna 1 (TX/RX) 4504 Both Received frames with antenna 2 (RX)
  • Page 90: Utilities

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 4.10 - Utilities “Ping” Ping is a basic Internet program that lets you verify that a particular IP address exists and can accept requests. Ping is used diagnostically to ensure that a host computer or device you are trying to reach is actually operating. If, for example, a user can’t ping a host, then the user will be unable to send files to that host.
  • Page 91: Ipconfig

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual ”Ipconfig” “ipconfig” can be used to show your current TCP/IP information, including your address, DNS server addresses, adapter type and so on. In the above example ipconfig was entered in the command prompt. The reply back shows the PC’s IP address, Subnet mask and the gateway it is connected to.
  • Page 92: Route

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual ”Route” Route is used for the Router function. This is where you are joining 2 different networks together via the WI-MOD-E refer to Section 1.1 Normally the WI-MOD-E will only accept one routing rule, by using the Default Gateway IP Address on the Main Network Page.
  • Page 93: Chapter 5 - Specifications

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual CHAPTER 5 - Specifications Transmitter/Receiver Frequency 2.412 – 2.472GHz 5.150 – 5.825GHz(2) Transmit Power 15 - 400mW (Data rate and country specific) Transmission Direct Sequence Spread Spectrum (DSSS)(1, 2) Modulation...
  • Page 94 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Security Data Encryption – 802.11i With CCMP 128bit AES Support for 802.1x Radius Server Secure HTTP Protocol Bandwidth Protection MAC Address – Whitelist/BlacklistIP Filtering – Whitelist/BlacklistARP/GARP Filtering – Whitelist/Blacklist LED Indication/Diagnostics LED Indication Power/OK;...
  • Page 95: Appendix A - Firmware Upgrade

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual APPENDIX A - FIRMWARE UPGRADE Determine which firmware version is present in the module to be upgraded by viewing the index webpage of the module. Firmware versions 1.0.3 and later may be upgraded via the configuration web pages. This upgrade can be done locally with a PC connected directly to the module, or remotely over a working radio link.
  • Page 96: Appendix B - Glossary

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual APPENDIX B - GLOSSARY connecting transmit signal on one side to receiver signals on the other. Acknowledgement CSMA/CA Access Point Carrier Sense Multiple Access/Collision Avoidance An access point connects wireless network stations is a "listen before talk"...
  • Page 97 Internet. An IP address has two parts: an identifier Hertz. The international unit for measuring of a particular network on the Internet and an frequency, equivalent to the older unit of cycles per identifier of the particular device (which can be a Rev. 2.16  www.weidmuller.com     97 ...
  • Page 98 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual server or a workstation) within that network. the wireless device transmits at. IPX-SPX MAC Address Internetwork Packet Exchange, a networking Media Access Control address. A unique code protocol used by the Novell NetWare operating assigned to most forms of networking hardware.
  • Page 99 Wired Equivalent Privacy. Basic wireless security forwards them individually to the IP program layer. provided by Wi-Fi. In some instances, WEP may be Although each packet has the same destination IP all a home or small-business user needs to protect Rev. 2.16  www.weidmuller.com     99 ...
  • Page 100 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual wireless data. WEP is available in 40-bit (also called 64-bit), or in 108-bit (also called 128-bit) encryption modes. As 108-bit encryption provides a longer algorithm that takes longer to decode, it can provide better security than basic 40-bit (64-bit) encryption.
  • Page 101: Appendix C - Channels

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual APPENDIX C - CHANNELS 802.11b/g Channel Frequency North Europe Australia Japan Most of (MHz) America world 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 2484 .11b only...
  • Page 102: A - Maximum Radio Transmitter Power

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 802.11a – Maximum Radio Transmitter Power Channel Freq Europe max TX Europe max TX Australia NZ max USA max (MHz) Power (Master) Power (Slave) max TX TX Power TX Power...
  • Page 103: A & Tx Power

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 802.11a & TX Power Band & Frequency EU & Australia New Zealand South Africa U-NII Frequency No DFS No DFS Band (MHz) 5150-5250 – 50 mW – 200 mW –...
  • Page 104: Appendix D - External Iperf Test

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual APPENDIX D - External Iperf Test This Appendix shows how to set up and use the Iperf application to test the throughput of Ethernet Modems. Iperf is a tool used to measure the throughput and quality of a network link. Jperf is used in conjunction with Iperf and displays the Iperf data results graphically.
  • Page 105 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Figure 2 This will run a test over the Wi-Fi Link to the Server PC and report back results as seen in Figure 3. These results show the Bandwidth (Throughput) of the test as 16.2Mbits/sec.
  • Page 106: Jperf Application

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual JPerf Application Jperf is a graphical interface that runs over the top of Iperf. It will display a graph result from the Iperf test. To run Jperf open a CMD prompt and change to the “jperf-2.0.2: directory and run the “Jperf” application as shown in Figure 4.
  • Page 107: Appendix E - Gnu Free Doc License

    Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual APPENDIX E - GNU Free Doc License Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
  • Page 108 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program.
  • Page 109 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance.
  • Page 110 Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED...

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