background image

 
 

 

 

Figure  29 Spanning  Tree Protocol

 

 

The Spanning Tree Protocol  implemented is IEEE 802.1d compatible.  The algorithm forms a loop-free  network  by 
blocking  traffic  between redundant links in the network.  These blocked  links are placed  in a standby  condition,  and 
may be automatically  enabled to repair the network  if another link is lost. The Spanning Tree algorithm maintains a 
single path between all nodes in a network,  by forming  a tree-like structure.

 

 

The Bridge Priority field only becomes visible when the Bridge STP option  is enabled. 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.   By default, the WI-MOD-xxx-E-5W is configured  with  a bridge  priority  of 32768. The 
intention is to reduce the amount of traffic  that the WI-MOD-xxx-E-5W must handle by placing  it at the 

“branch”  level 

in the network

 

tree. As a branch, the WI-MOD-xxx-E-5W need only pass traffic  to devices that  are its 

“leaves.”

 

 

There is some overhead in maintaining a network  using the Spanning Tree algorithm. Users wanting  to increase 
their throughput  at the expense of redundancy should disable Spanning Tree. The Spanning Tree Protocol  can be 
configured  on the Repeaters configuration  page  (see 

“4.8  Repeaters” on page 44).

 

 

DHCP Client  Configuration

 

DHCP (Dynamic Host Configuration  Protocol) allows DHCP clients to automatically  obtain their IP address at

 

start-up.  This simplifies network  administration  because there is no need to manually configure each device with  a 
separate IP address. The WI-MOD-xxx-E-5W is able to act as a DHCP client. To set the WI-MOD-xxx-E-5W to 
acquire its IP address from a DHCP server, select the Obtain IP Address Automatically  checkbox  on the Network 
Configuration  page. When configured  as a DHCP client, the device name on the Module  Information page will be 
the module identifier (since the IP address will be unknown), and therefore should be given a unique name.

 

 

4.5 Security  Configuration

 

To configure security, select the desired radio encryption  method  on the Network  page (see 

“4.4  Network

 

Configuration”  on page 28), and then click Save Changes. Next, use the Security  page to enter the encryption

 

key (WEP) or passphrase ( WPA2)   and click  Save Changes  and  Reset to save the settings  and restart the module.

 

 

The following  sections  describe the Security pages for WEP configuration  (Figure 30) and WPA2 configuration

 

(Figure 31).

 

 

WEP - 128-bit  Encryption

 

WEP128 (Wired Equivalent Privacy) encryption  is the weakest encryption  method,  defined by the original 
IEEE802.11 standard, and uses a 104-bit  key with  a 24-bit  initialization vector to  give a 128-bit  WEP encryption 
level. WEP is not considered an effective security scheme, and should only be used if it is necessary to inter- 
operate with  other equipment  that  does not support  more modern encryption  methods.

 

 
 

Содержание WI-MOD-400-E

Страница 1: ...ess Ethernet Modem and Device Server User Manual 1 Rev Version 1 1 Industrial Wireless Ethernet Modem and Device Server User Manual WI MOD 400 E WI MOD 950 E Version 1 1 July 2015 Read and Retain for...

Страница 2: ...f the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency ener...

Страница 3: ...us area GNU Free Documentation License Copyright C 2009 WEIDMULLER WEIDMULLER is using a part of Free Software code under the GNU General Public License in operating the WI MOD xxx E 5W product This G...

Страница 4: ...te or automatic operation For example This equipment is remotely controlled and may start without warning Isolate at the switchboard before attempting adjustments The WI MOD xxx E 5W module is not sui...

Страница 5: ...ction is a standard RJ 45 connection that will operate at up to 100 Mbps The module will transmit the Ethernet messages on the wireless band at rates between 1 and 19 2 Kbps depending on model band en...

Страница 6: ...point could be used as a repeater unit to connect two WI MOD xxx E 5W clients that do not have direct reliable radio paths There is no special repeater module any WI MOD xxx E 5W module can function a...

Страница 7: ...t network for example extending an existing Ethernet LAN Figure 5 Bridge A router connects devices on different LANs The IP addresses for the Ethernet and the wireless sides must be different In this...

Страница 8: ...ch explains the power antenna serial Ethernet and I O connections required for successful operation 2 Power the WI MOD xxx E 5W and set up an Ethernet connection to your PC For detailed steps see 4 1...

Страница 9: ...ccessfully transmit up to 50 km 31 miles with a directional antenna attached To achieve the maximum transmission distance the antennas should be raised above intermediate obstructions so that the radi...

Страница 10: ...losses are Antenna Gain dBi Dipole 2 dBi Collinear 5 or 8 dBi Directional Yagi 6 15 dBi Cable Type Loss dB per 30m 100 ft RG58 Cellfoil Cable kits 3m 10m 20m 1dB 2 5dB 4 8 dB RG213 per 10m 33 ft 1 8...

Страница 11: ...direction of transmission to benefit from the gain of the antenna Parabolic antennas should be mounted according to the manufacturer s instructions with the parabolic grid at the back and the radiatin...

Страница 12: ...with the supply voltage and radio power level The power requirements for the WI MOD xxx E 5W unit are shown in the table below The positive side of the supply must not be connected to ground The supp...

Страница 13: ...r using a standard straight through cable the device is a DCE Figure 13 Serial Cable DB 9 Connector Pinouts Pin Name Direction Function 1 DCD Out Data Carrier Detect 2 RXD Out Transmit Data serial dat...

Страница 14: ...enabled or fitted Figure 15 Multidrop Serial Fail safe Biasing Fail safe biasing is a simple voltage divider that is connected to the RS 485 bus and pulls the terminal voltages high or low when the c...

Страница 15: ...dix B Figure 17 USB Connections 2 5 Input and Output Connections The WI MOD xxx E 5W has a single physical on board I O channel that can be configured as either digital or analog via the module s Web...

Страница 16: ...peration For example if the output is activated while the DIO is being read the indication will show the input as being on 1 Figure 19 DIO Output Digital Input When used as an input the I O channel su...

Страница 17: ...attempts to link using a two step process authentication and association During authentication the client and access point check whether their configurations permit them to establish a link Once the...

Страница 18: ...will flash constantly RS 485 Red flash Data received to RS 485 serial port IO Green Digital input is on IO Red Digital output is active IO Off Digital output off and input is open circuit Analog inpu...

Страница 19: ...rates Reducing the data rate can increase the reliable communication range of the module For example if the received signal level is low the data rate could be reduced to improve communications It is...

Страница 20: ...rnet port The module s default configuration settings are as follows Operating mode Client Device mode Bridge IP address 192 168 0 1XX where XX is the last two digits of the serial number the default...

Страница 21: ...1 Rev Version 1 1 5 Select Internet Protocol TCP IP and click Properties Figure 22 Local Area Connection 6 On the General tab enter IP address 192 168 0 1 and subnet mask 255 255 255 0 and then click...

Страница 22: ...server ensure that Internet Explorer will bypass the proxy server for local addresses This option may be modified by opening Tools Internet Options Connections Tab LAN Settings Proxy Server bypass pr...

Страница 23: ...tion parameters These parameters must be specified before the modem can be used Radio configuration parameters include transmit and receive frequency channel step size and the transmit power level as...

Страница 24: ...Reset to restart the modem The Main Screen of the WI MOD xxx E 5W webpage will now show the correctly configured model locale and frequency as shown in the example in Figure 26 Transmit Power Level A...

Страница 25: ...s ESSID A WI MOD xxx E 5W wireless network is comprised of modules with the same system address Only modules with the same system address will communicate with each other The system address is a text...

Страница 26: ...menu see Figure 27 is displayed by clicking Full Configuration on the home page that appears when you log onto the module When prompted enter the username and password the default username is user and...

Страница 27: ...be taken when connecting the modem to existing networks When configured as a bridge default all broadcast messages appearing at the module s wired Ethernet port will be transmitted over the radio The...

Страница 28: ...word or phrase as well as upper and lower case For example WiReLeSs TeChNoLoGy 2010 For more information on WPA2 see WPA2 Encryption on page 32 Device Mode Allows you to choose whether the module wil...

Страница 29: ...to reduce broadcast traffic sent over the radio For information on creating filters see 4 10 Filtering on page 49 By default a transparent bridge does not handle loops within the network There must be...

Страница 30: ...ion page see 4 8 Repeaters on page 44 DHCP Client Configuration DHCP Dynamic Host Configuration Protocol allows DHCP clients to automatically obtain their IP address at start up This simplifies networ...

Страница 31: ...restarted before the changes take effect Save Changes and Reset Save settings to non volatile memory and reboot the WI MOD xxx E 5W module Once the module has completed the reboot sequence all changes...

Страница 32: ...specify the radio configuration settings for your country of operation and license The factory default parameters of the radio are set to values that allow the radio to be powered up safely without in...

Страница 33: ...nfigured in the Frequency Step Size field For example 450 00500 450 01000 450 01500 450 02000 and so on for a frequency step size of 5 kHz or 450 00625 450 01250 450 01875 450 02500 and so on for a fr...

Страница 34: ...configure the onboard serial ports The WI MOD xxx E 5W has one RS 232 port and one RS 485 port available for serial communications with other devices These ports are completely independent of each ot...

Страница 35: ...vice that is connected and communicating via the port Baud rates range from 110 to 230400 baud Data Format Defines the data bits parity and start stop bits used to communicate with the serial device F...

Страница 36: ...output register 16 Write Registers Write to an Analog Output register Destination Register Enter the starting I O register number in the destination device that the Modbus mapping will transfer I O to...

Страница 37: ...o 230400 baud Data Format Defines the number of data bits parity and start stop bits used to communicate with the serial device Flow Control Flow control is used by some serial devices to regulate the...

Страница 38: ...a by turning on off flags that are used to tell the connected serial devices to start or stop transmitting data The RS 232 supports CTC RTS hardware flow control Modbus Slave Device ID Address of the...

Страница 39: ...Client Mode Port Type Select Serial Gateway from the drop down list Data Rate Select the data rate to match that of the serial device that is connected and communicating via the port Baud rates avail...

Страница 40: ...IP Address Only available when Client is selected in the Serial Gateway Mode Enter the IP address of the remote server you want to communicate with Save Changes Save changes to non volatile memory Sav...

Страница 41: ...unicate with the serial device Flow Control Flow Control is used by some serial devices to regulate the flow of data by turning on off flags that are used to tell the connected serial devices to start...

Страница 42: ...flagging a Comms Failure Figure 42 Modbus RTU Serial Port Configuration Because the Unite B module is also communicating with a Modbus RTU slave device Device 5 it will need to have an RTU Master Mapp...

Страница 43: ...wireless interface A WDS bridge interface allows traffic to be bridged to another access point on the same IP network WDS bridge interfaces do not require additional IP address configuration because t...

Страница 44: ...ll connect to For AP mode clients must configure their WEP Key 1 to the same value as this key and select the Default WEP Key to be WEP Key 1 Save Changes Save changes to non volatile memory The modul...

Страница 45: ...is recommended that the encryption method be equal to or greater than the main system in order to maintain system security In addition since it is a bridged network the Spanning Tree Protocol is disab...

Страница 46: ...l all be the same for each site as shown in Figure 50 This setup can be replicated many times which will allow roaming stations full connectivity across the network Figure 50 System Network Settings 4...

Страница 47: ...e to deliver traffic to LAN B and LAN C it needs to have routing rules configured that specify the respective WI MOD xxx E 5W client routers as next hop routers gateways to networks B and C Note that...

Страница 48: ...this checkbox to enable the rule You can deselect the checkbox to disable a routing rule without needing to re enter the information at a later time Save Changes Save changes to non volatile memory T...

Страница 49: ...PC to the whitelist Failure to add this address will prevent the configuration PC from making any further changes to configuration Design of the filter may be simplified by monitoring network traffic...

Страница 50: ...the modems in a router configuration instead of a bridge If after configuring the modem with filtering you no longer have access to the modem it probably means the computer IP or MAC address was not...

Страница 51: ...s to specific devices through the use of blacklists blocking of traffic that matches a rule and whitelists allow traffic that matches a rule To configure IP address filters click Filtering from the me...

Страница 52: ...rimarily used for identifying MAC addresses when only the IP address or some other Network layer address is known Large networks tend to get a high proportion of broadcast messages ARP filters are use...

Страница 53: ...xxx E 5W also has an on board Modbus TCP server and Modbus TCP client that provide connectivity for a range of Modbus applications The Modbus TCP client and the Modbus TCP server can be enabled simul...

Страница 54: ...ve and Activate Changes Save to non volatile memory and restart to activate changes Modbus TCP Client The Modbus TCP client enables the WI MOD xxx E 5W to connect to one or more Modbus TCP servers To...

Страница 55: ...Function Code for the transaction 01 Read Coil Reads the on off status of a digital output in the slave device for example DO status 0X register 02 Read Discrete Reads the on off status of a digital i...

Страница 56: ...s you do not need to enter in the full Modbus address for example 30001 or 10001 Only the I O address is needed because the function code determines what type of command is being used For example if y...

Страница 57: ...d Modbus TCP server at Unit C Server IP address 192 168 0 200 is the IP address of Unit C which is the Modbus TCP server we are reading from Server Port is the TCP port used Response Timeout 1000 ms s...

Страница 58: ...ion To configure the I O channel as an analog make sure that Analog Input is selected in the Mode field on the External I O Mode Configuration page see the previous section After saving the changes cl...

Страница 59: ...10002 and VSupply setpoint is located at register 10003 Upper Setpoint This parameter is the upper control point value that is used in conjunction with the lower setpoint to turn on and off the analog...

Страница 60: ...If Fail safe State option is selected the output will be on if the Fail safe State option is deselected the output will be off When an update or a COS message is received the fail safe timer is restar...

Страница 61: ...ire 16 bit value of any register or alternatively the most significant bit of a register may be accessed as a discrete value The main use for the general purpose I O registers is for intermediate stor...

Страница 62: ...gister location 30321 16 20 30001 See Appendix D for a more detailed address map of the serial expansion I O modules When adding expansion I O modules to the WI MOD xxx E 5W there are two built in reg...

Страница 63: ...invalidated on failure Fail Value Sets the value that the register is set to when a fail occurs Invalid Register State All registers within the module can have various states depending on the type of...

Страница 64: ...er default username user and password user 8 On the home page menu click Quick Start 9 On the Quick Start page configure the following a Configure the Transmit Power Level Transmit Data Rate Frequency...

Страница 65: ...e of Routed Network LAN A Configuration In this example network A is connected to the Internet via a router at IP address 192 168 0 1 Devices on LAN A that require a connection to devices on LAN B sho...

Страница 66: ...to WPA2 on the Quick Start page You need to configure an encryption key passphrase Record the key as it also needs to be the same on all radios in the example e Change the IP addresses to 192 168 0 20...

Страница 67: ...nfigure units as described in the Extending a Wired Network on page 65 Place the access point at the remote intermediate repeater location Additional repeaters can be added using Wireless Distribution...

Страница 68: ...ircuit dim 4 mA bright 20 mA The green OK LED on the front panel indicates that the WI MOD xxx E 5W is operating correctly A red OK LED can indicate a number of conditions When the module is reset to...

Страница 69: ...s Indicates whether the connected devices have compression turned on or off Compression is described in 4 6 Radio Configuration on page 33 Connected For Shows the current link time that the client has...

Страница 70: ...transfer a file measuring the time it takes to send Iperf Throughput Test Uses a MS DOS based application that is run on a PC or laptop at each end of the radio link and measures the data throughput...

Страница 71: ...ile No Compression 404 sec 0 33 Kbps 185 sec 0 72 Kbps 134 KB jpg file With Compression 215 sec 0 62 Kbps 183 sec 0 73 Kbps Iperf Throughput Test A more thorough test is to perform a throughput test t...

Страница 72: ...he current IP routes configured in the module IP statistics Displays various of statistics for each interface TCP UDP Statistics Shows the number of TCP and UDP connections currently established Memor...

Страница 73: ...nel Utilization on a Live System Channel utilization can be used on a live system and is the simplest method for determining how busy the channel is and how much spare capacity the channel has for add...

Страница 74: ...ise level for the last 60 seconds Figure 78 Background Noise Seconds Figure 79 shows the Channel utilization for each minute over a one hour period Each minute is calculated from the running average o...

Страница 75: ...selection on the Custom Survey page shows the total percentage of transmitted frames over a 60 second period in chart one and the total percentage of received frames over a 60 second period in chart...

Страница 76: ...dem and Broadcast messages Radio Hold Off Percentage of time that the radio has spent holding off from transmitting data possibly because the channel is busy RX to This Radio Percentage of time receiv...

Страница 77: ...information about the radio link can help us determine what is causing the increase in traffic The Chart 2 Radio Holdoff shows that the radio is holding off from transmitting around 36 of the time wh...

Страница 78: ...Interval Wait time between Ping requests Default is 5 seconds and typically will not need to be changed unless using repeaters 5 8 IO Diagnostics Click I O Diagnostics on the menu read and write the...

Страница 79: ...2 the offset is 2 x 20 40 If it has an address of 18 the offset is 18 x 20 360 Each expansion I O module has the following diagnostic registers Add the offset to the fixed register number to get the a...

Страница 80: ...heard other RS 485 traffic 81 0x0129 Problem accessing local memory Could not access register location possibly because the register is not initialized 5 9 Monitor Radio Comms The Monitor Radio Comms...

Страница 81: ...or an internal handle number used for transmitted messages If the number is 65535 it indicates its an ACK transmission Data Length Total length of the transmitted or received message Data Data packet...

Страница 82: ...can be saved and emailed to WEIDMULLER if requested Click Clear System Log to erase the log file and start fresh Read Configuration File This option shows the module configuration in XML format This...

Страница 83: ...o the module s default IP address which is displayed on the label on the bottom of the module 5 12 Module Information Use the Module Information page to change the username and password and the module...

Страница 84: ...user will be unable to send files to that host Ping operates by sending a packet to a designated address and waiting for a response The basic operation of Ping can be performed by following these ste...

Страница 85: ...information including your address DNS server addresses adapter type and so on Figure 92 Ipconfig In the example in Figure 92 the ipconfig command was entered at the command prompt The reply shows the...

Страница 86: ...as the gateway Setting up a default gateway address on the modem This is a link to an IP address that knows how to get to the required subnet This is a fallback address If the modem does not know wher...

Страница 87: ...o edit manipulate and delete routing rules Route PRINT Shows all active routes on PC Route ADD Adds a routing table to network format Route IP Address Mask Subnet Mask Route IP Address Route DELETE De...

Страница 88: ...100baseT via LED Serial Port RS 232 DB 9 female DCE RTS CTS DTR DCD RS 485 2 2 pin terminal block non isolated Data Rate Bps 1200 2400 4800 9600 14400 19200 38400 57600 76800 115200 230400 Bps Serial...

Страница 89: ...7 3 x 4 5 x 1 4 Housing IP20 powder coated aluminum Mounting DIN rail Terminal Blocks Removable max conductor 12 AWG 2 5 mm2 Temperature Rating 40 to 70 C 40 to 120 F Humidity Rating 0 99 RH nonconde...

Страница 90: ......

Страница 91: ...n of the USB drive and re configure the drive if necessary 1 Plug USB drive into the USB port on the PC and wait until Windows recognizes the drive and completes the driver installation 2 Open the Win...

Страница 92: ...eeded in cleaning the disk DISKPART list disk Disk Status Size Free Dyn Gpt Disk 0 Online 232 GB 0 B Disk 1 Online 1911 MB 1910 MB 7 Enter the command create partition primary to create a partition on...

Страница 93: ...USB Drive 3 Make sure that Quick Format is not selected and then click Start Figure 96 Quick Format To perform a full firmware upgrade 1 Copy the supplied firmware files to the root directory on the...

Страница 94: ...astic cover on the front of the Module to reveal a USB port and push button Reset switch Figure 99 Front Access Panel 5 Plug the USB drive into the USB A port and press the Reset button During the upg...

Страница 95: ...versions behind the desired version it may be necessary to upload multiple patch files 1 Access the module s Web Server For instructions see 4 1 Connecting and Logging On on page 22 2 Click Full Confi...

Страница 96: ...power up 4 Open the plastic cover on the front of the module and connect the USB cable to the USB B socket Connect the other end of the cable to a free USB socket on the PC Figure 102 USB Ports When...

Страница 97: ...Rev Version 1 4 1 97 97 Rev Version 1 4 1 Figure 105 Using Ping Command to Connect Figure 106 Using Web Browser to Connect...

Страница 98: ...reassigned Without DHCP an IT manager would need to manually enter in all the IP addresses of all the computers on the network When DHCP is used whenever a computer logs onto the network an IP address...

Страница 99: ...re The address is permanently assigned to the hardware so limiting a wireless network s access to hardware such as wireless cards is a security feature employed by closed wireless networks But an expe...

Страница 100: ...at is either dynamically assigned at startup or permanently assigned All TCP IP messages contain the address of the destination network as well as the address of the destination station This enables T...

Страница 101: ...012 Offset WI EX IO 11 pulsed input count 30017 Offset Modbus Error counter for this 115S module 30018 Offset Modbus Last Error code for this 115S module See Appendix E for Modbus error codes 30019 Of...

Страница 102: ...r code for this 115S module See Appendix E for Modbus error codes 30019 Offset Modbus Lost Link counter for this 115S module 30020 Offset Module type 0x0301 769 error status 40001 40008 Offset Analog...

Страница 103: ...protocol is unaware of the significance of any particular value of any particular register 65384 FF04 Slave Device Failure An unrecoverable error occurred while the server or slave was attempting to p...

Страница 104: ...3 mW 11 dB 316 mW 25 dB 16 mW 12 dB 398 mW 26 dB 20 mW 13 dB 500 mW 27 dB 25 mW 14 dB 630 mW 28 dB 32 mW 15 dB 800 mW 29 dB 40 mW 16 dB 1 0 W 30 dB 50 mW 17 dB 1 3 W 31 dB 63 mW 18 dB 1 6 W 32 dB 79 m...

Страница 105: ...PC 2 Extract the zip file to the root directory on your PC C directory The extracted folder contains the main Iperf application and the Jperf graphical interface 3 Copy this folder to the second PC o...

Страница 106: ...width throughput of the test as 19 2 Kbps We recommend that you run the test several times to get an average Figure 109 Iperf Results JPerf Application Jperf is a graphical interface that runs over th...

Страница 107: ...dress of the server PC Leave the Port field at the default and click Run Iperf The test will run and then display the measured bandwidth throughput over time You can run this test as often as needed t...

Страница 108: ...heir rights We protect your rights with two steps 1 copyright the software and 2 offer you this license which gives you legal permission to copy distribute and or modify the software Also for each aut...

Страница 109: ...works But when you distribute the same sections as part of a whole which is a work based on the Program the distribution of the whole must be on the terms of this License whose permissions for other l...

Страница 110: ...you may not distribute the Program at all For example if a patent license would not permit royalty free redistribution of the Program by all those who receive copies directly or indirectly through yo...

Страница 111: ...ROGRAM AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE THE ENTIRE RISK AS TO...

Страница 112: ......

Страница 113: ...ller Canada 10 Spy Court Markham Ontario L3R 5H6 Main 905 475 1507 Toll Free 1 800 268 4080 Toll Free Fax 1 877 300 5635 Fax Admin 905 475 5855 Technical Support support weidmuller ca www weidmuller c...

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