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.
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.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual FCC Notice: This device complies with Part 15.247 of the FCC Rules. Operation is subject to the following two conditions: This device may not cause harmful interference and This device must accept any interference received, including interference that may cause undesired operation. This device must be operated as supplied by Weidmuller.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Important Notice WEIDMULLER products are designed to be used in industrial environments, by experienced industrial engineering personnel with adequate knowledge of safety design considerations. WEIDMULLER radio products are used on unprotected license-free radio bands with radio noise and interference.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Limited Lifetime Warranty, Disclaimer and Limitation of Remedies WEIDMULLER products are warranted free from manufacturing defects for the “serviceable lifetime” of the product. The “serviceable lifetime” is limited to the availability of electronic components.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual CONTENTS Supplicant Re‐authenticate Period: ......................................... 33 Enable Debug: .......................................................................... 33 CHAPTER 1 - INTRODUCTION .........................................8 1.0 - NETWORK TOPOLOGY ................................................8 Access Point vs Client .................................................9 Bridge vs Router .....................
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Example 2 – Multiple Wireless Interfaces ............................... 67 3.24 - MODULE INFORMATION ..........................................71 Module Information Webpage Fields .........................71 3.25 - CONFIGURATION EXAMPLES ...................................71 Factory Default Settings ............................................71 Extending a wired network .........................................
CHAPTER 1 - INTRODUCTION The WI-MOD-E Industrial 802.11 Wireless Ethernet module provide wireless connections between Ethernet devices and/or Ethernet wired networks (LAN’s). They each comply with their relevant IEEE 802.11 standard. The WI-MOD-E is available in a range of different models with different RF power and frequency options suitable for your country’s local radio regulations. WI-MOD-E-G 802.11 b/g 400mW max power WI-MOD-E-A 802.
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. Clients (Stations) are slave units and when connected to the Access Point becomes transparent Ethernet link. The first diagram shows a connection between two Ethernet devices using WI-MOD-E Ethernet modems.
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. For a Bridge, the IP address for the wireless side is the same as the Ethernet side. A Router connects devices on different LAN’s. The IP addresses for the Ethernet and wireless sides are different.
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. First, read Chapter 2, “Installation”. The WI-MOD-E requires an antenna and a power supply.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual CHAPTER 2 - INSTALLATION 2.0 - General The WI-MOD-E modules are housed in a rugged aluminum case, suitable for DIN-rail mounting. Terminals will accept wires up to 2.5 mm2 (12 gauge) in size. All connections to the module must be SELV (Safety Extra Low Voltage). Normal 110-250V mains supply must not be connected to any terminal of the WI-MOD-E module. Refer to section 2.2 - “Power Supply”.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Note: When only one antenna is used, it must be connected to the TX/RX connector. Antenna Diversity There are two main reasons for using Antenna diversity; the first is to improve the reliability of a radio link that may be affected by multipath signals.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 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). Installation tips Connections between the antenna and coaxial cable should be carefully taped to prevent ingress of moisture.
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”. 2.2 - Power Supply The WI-MOD-E module can be powered from a 9 - 30VDC power supply. The power supply should be rated at 1 Amp.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 5 SG -- Signal Ground 6 DSR Out Data Set Ready - always high when unit is powered on. 7 RTS In Request to Send 8 CTS Out Clear to send 9 RI 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.
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.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual CHAPTER 3 - OPERATION 3.0 - Start-up “Access Point” Start-up (WI-MOD-E-G) When an Access Point (AP) unit starts up it checks to see if the Channel selection is set to “Auto” and if so will scan all available channels, pick the quietest then begin transmitting periodic messages, called beacons, if it is configured with a fixed channel it will immediately begin sending beacons, on the configured channel.
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.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 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. Please check your local regulatory body for compliance and channel selection.
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 UNII bands and each region (EU, US, AUS, NZ, etc.) have their own power and operational constraints, see Appendix C for more details. The example below shows the US power and operational constraints “Group 1”: 5.15-5.25GHz @ 50mW “Group 2”: 5.25-5.
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.
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” Ethernet cable between the PC Ethernet port and the WI-MOD-E. The factory default Ethernet address for the WI-MOD-E is 192.168.0.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Figure 16 – Main Screen To resume normal configured operation when Configuration is complete, switch Factory Default dip-switch on the WIMOD-E to RUN and cycle power. Note: Security Certificates. Configuration of the WI-MOD-E uses an encrypted link (https). The security certificate used by the WI-MOD-E is issued by WEIDMULLER and matches the IP address 192.168.0.100.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual _ __,----'~~~~~~~~~`-----.__ . . `//====____,-'~` -. \_|// . /||\\ `~~~~`---.___./ ______-==. _-~o `\/ ||| \\ _,'` __,--' ,=='||\=_ ;_,_,/ _-'||`\ \\ ,' _-' ,=' | \\`. '',/~7 // || `\. / .' ,' | \\ \_ " / // || \ / / _____ / | \\.`-_/ /|- _/ ,|| \ / ,-' `-|--'~~`--_ \ `==-/ `| \'--===-' _/` ' `-| /| )-'\~' _,--"' '-~^\_/ | | `\_ ,^ /\ / \ \__ \/~ `\__ _,-' _/'\ ,-'~____-'`-/ ``===\ ((->/' \|||' `. `\.
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.
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 – See section 3.24 - “Module Information ” to change).
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. Clients that are not authorized will be prevented from accessing the network.
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. Both wired (Ethernet Interface) port and wireless (Wireless Interface) ports will take on this address.
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. The root node is typically the unit that handles the majority of traffic in the network.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.6 - Compatibility 3 Address (Layer 3 Bridge) & 4 Address Mode What Addresses are in a wireless Ethernet data frame? There are two different Wi-Fi communication “modes”, 3 Address and 4 Address Modes. Each mode has a slightly different way that it addresses the data frames to other devices on the network.
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” button.
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). The Passphrase must be between 8 and 63 characters in length, and the Passphrase must be the same for all WI-MOD-E units in the same system.
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. By default, the WI-MOD-E is configured as a transparent bridge.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual The WI-MOD-E can be configured for different radio transmission rates. A reduction in rate increases the reliable range (transmission distance). The factory-default data rate settings are suitable for the majority of applications and should only be modified by experienced users. Note: This rate is for Transmit messages only as radio can receive on all data rates.
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. Beacon Interval (AP only) This interval is the period between beacon transmissions sent by an Access Point. The default value is 100 milliseconds, and it may be adjusted from 50 to 4095 milliseconds. Max Distance Configure the maximum distance the radio signal is expected to travel.
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.
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 Threshold RTS frames can be used to help avoid radio collisions between two stations that cannot directly hear each other. Any frame larger than RTS Threshold bytes will be preceded by an RTS message.
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.
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.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Modbus TCP to RTU Gateway The Modbus TCP to RTU Gateway allows an Ethernet Modbus/TCP Client (Master) to communicate with a serial Modbus RTU Slave. The WI-MOD-E makes this possible by internally performing the necessary protocol conversion. The conversion is always performed by the WI-MOD-E which is directly connected to the Modbus serial device (i.e. only this module needs to have Modbus TCP to RTU Gateway enabled).
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. Serial data rates available range from 110bps to a maximum of 115,200bps. Data Format The data format desired. All the standard data formats are supported.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Character Timeout Enter the maximum delay (in msec) between received serial characters before packet is sent via network. Packet Size The number of received bytes that will be buffered before a packet is sent via the network. Multicast Group Port Enter the UDP port number that all members of the group will use (i.e. all group members should use the same port number).
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. An example would be a Scada system that needs to communicate with multiple remote serial devices. A modem can be placed at each remote location and connected serially to each device.
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.
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 4375 TCP-RTU Connection Status (RS485) inverted 4376 TCP-RTU Modbus Server Connection Status inverted 4377 Multicast Pipe Connection Status inverted 4378-4999 Reserved for future use Modbus TCP Client (Master) enables the WI-MOD-E to connect to one or more Modbus TCP Servers (Slaves).
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. Figure 37 - Modbus Mappings Unit B is configured with Modbus TCP Server enabled and Device ID = 1, Unit C is configured as shown above.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Modbus TCP Configuration on I/O Transfer Menu: Enable Modbus TCP Server (Slave) Check this box to enable the onboard Modbus TCP Server. All Modbus TCP connections to the module IP Address and specified Modbus Server Device ID will be routed to the onboard I/O registers. Modbus Server Device ID Specify the Modbus Device ID for the onboard Modbus TCP Server. Allowed values are 0 to 255.
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.
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.
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). The WI-MOD-E offers very powerful WDS configuration, allowing for a mesh network with self-healing functionality.
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. A maximum of 10 WDS Connections can be configured. (A combined maximum of 5 virtual AP and 5 virtual Client/STA applies.
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. Example 1 – Extending range using WDS Figure 41 - Extending Range One of the most common uses for WDS is to extend the range of the wireless network using repeaters.
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.
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.
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. In both examples, there are four WDS Access points each with the possibility of having their own client/stations associated.
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.
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.
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 A. The Routing Rules configuration page can be accessed by selecting the “Routing” link on any of the configuration web pages. Up to 30 routing rules may be added to each WI-MOD-E. The table below summarizes the configurable parameters of a routing rule.
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. In many cases, the intended recipient of the broadcast traffic does not lie at the opposite end of a proposed radio link.
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. Failure to add this address will prevent the configuration PC from making any further changes to 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). The IP filter entry will match either source or destination address in the packet.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 3.20 - DHCP Client Configuration DHCP (Dynamic Host Configuration Protocol) allows DHCP Clients to automatically obtain their IP Address at start-up. This simplifies network administration, as there is no need to manually configure each device with a separate IP Address. The WI-MOD-E is able to act as a DHCP client.
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; this can increase security and help improve the efficiency of traffic flow by limiting multicast and broadcast messages.
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.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Management Netmask The IP network mask of the Management IP, see above. Bridge STP Turns on Spanning Tree Protocol (STP) for the Bridge. STP prevents network loops that can cause broadcast storms. Bridge Priority The STP priority number for the bridge. This value should be set in context with other devices that are connected on the same network. Interface Membership Each VLAN Group has a configurable Interface membership list.
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.
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. Shown below is the configuration for the Multi VLAN example above. You will see there are four groups configured, one for management and one for each of the VLAN ID’s.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Figure 61 - Example 2 Configuration Rev. 2.16 www.weidmuller.
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. VLAN Group 2 is using the standard wireless interface which is configured from the main network page while the other two are each using one of the WDS Repeater virtual interfaces.
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. Username Configuration of Username. This is the username used to access the configuration on the WI-MOD-E.
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” Click “Network”, and select Operating Mode as Access Point. Select Device Mode as Bridge. Change the Gateway IP Address to 192.168.0.1 Change the Ethernet and Wireless IP addresses to 192.168.0.
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. Adjust PC network settings Set Configuration PC network card with network setting of IP address 192.168.0.1, netmask 255.255.255.0 Open configuration webpage with Internet Explorer at address https://192.168.0.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual CHAPTER 4 - DIAGNOSTICS 4.0 - Diagnostics Chart LED Indicator Condition Meaning OK GREEN Normal Operation OK RED Continuously Supply voltage too low.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Connected Devices Figure 67 - Connected Devices AID Association ID: Every Client gets a unique temporary ID from the AP CHAN Channel: What radio channel is being used. RATE Radio Data Rate: RSSI Radio Signal Strength Index (Amount of received signal strength). BGND Background interference level in dBms: The amount of internal noise the radio is able to hear.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 4.2 - Channel Survey (Utilisation) Channel Utilisation gives a visual display of how busy the current channel is over a given time period. Channel Utilisation is made up of 3 components: transmissions made by this radio; data received by this radio; and noise or interference that this radio can hear. These 3 components may also be viewed individually on the “Custom Survey” page.
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. 3. The connected modem has detected RF noise or interference. Channel Survey shows the Channel Utilisation and Noise Floor Graph with 1 second, 1 minute and 1 hour periods.
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. Figure 72 - Channel Utilisation Minutes The next screen shot shows the running radio receive noise floor average for each minute up to 59 minutes.
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.
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.
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.
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. Data Throughput based on Repeater Hops 2 3 4 1 2 3 4 Hops 1 Signal Signal 20 MHz Channel 1000m Int 10.5 5.3 2.6 1.3 7.5 3.8 1.9 0.9 5.0 2.5 1.3 0.6 1000m Ext 16 8.0 4.0 2.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 4.5 - 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. Note that when updating the Statistics webpage, it is necessary to hold down the key while pressing the refresh button.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual Broadcast Notes: When Broadcast message is sent from CL – AP the AP will always ACK the Client. When Broadcast Message is sent from AP – CL no ACK will be sent back. Management Frames: Can be probes, Authenticate/ Associate messages, RTS Messages, Beacons, etc Network Traffic Analysis There are many devices and PC programs that will analyse performance of an Ethernet network.
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. Install the Access Point at a fixed location. Take a laptop computer and the Client to each of the remote locations, and analyse the link using the Connectivity webpage.
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 Address IP Address of the Remote device that you wish to path test Throughput High Threshold High Throughput indication value. Generally configured with the desired throughput level Throughput Low Threshold Low Throughput indication value.
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. 4.
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” for details on how this is done).
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) 4506 Both Receiver / default antenna switches 4508 Both Receive message failed due to bad CRC 4510 Both Receive message failed due to decryption 4512 Both Receive message failed due to MIC failure 4514 Both Rece
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.
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. Other ipconfig commands will return back more information.
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. If more than one routing rule is needed then a Routing Table is required, e.g. Multiple networks each with a different IP range.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual CHAPTER 5 - Specifications Transmitter/Receiver Frequency 2.412 – 2.472GHz(1) 5.150 – 5.
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.
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.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual APPENDIX B - GLOSSARY Acknowledgement connecting transmit signal on one side to receiver signals on the other. Access Point CSMA/CA An access point connects wireless network stations (or clients) to other stations within the wireless network and also can serve as the point of interconnection between the wireless network and a wired network. Each access point can serve multiple users within a defined network area.
telephone network, or Plain Old Telephone Service (POTS). DNS Domain Name Service A program that translates URLs to IP addresses by accessing a database maintained on a collection of Internet servers. The program works behind the scenes to facilitate surfing the Web with alpha versus numeric addresses. A DNS server converts a name like mywebsite.com to a series of numbers like 107.22.55.26. Every website has its own specific IP address on the Internet.
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 protocol used by the Novell NetWare operating systems. Like UDP/IP, IPX is a datagram protocol used for connectionless communications. Higherlevel protocols, such as SPX and NCP, are used for additional error recovery services.
connectors have four. Server A computer that provides its resources to other computers and devices on a network. These include print servers, Internet servers and data servers. A server can also be combined with a hub or router. Site survey The process whereby a wireless network installer inspects a location prior to installing a wireless network. Site surveys are used to identify the radioand client-use properties of a facility so that access points can be optimally placed. SSL Secure Sockets Layer.
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.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual APPENDIX C - CHANNELS 802.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 802.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 802.
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. This instruction covers both Iperf and Jperf, it does not cover the setup and configuration of the modems.
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. Figure 3 Using the Theoretical throughput calculations in Table 1 you can compare the results with the measured to give an indication of the difference between expected and measured.
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. The CMD screen will disappear and the Jperf Screen will appear as seen in Figure 5.
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. Preamble The licenses for most software are designed to take away your freedom to share and change it.
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. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2.
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. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works.
Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-E-G/A User Manual 12.
