L-Switch User's Manual
Contents
1. To guarantee that the L Switch cannot be destroyed due to a failed firmware update the L Switch firmware consists of two images 1 Fall back image 2 L Switch application image The fall back image 1s write protected in flash memory and provides everything needed to talk to the L Switch platform over the network The L Switch application image 1s designed to be updated over the network whenever there is a need to do so The fall back image makes sure that the L Switch comes up in a status where the maintenance software can at least talk to the L Switch platform and can download a new L Switch application image When the L Switch boots up with the fall back image all port LEDs are flashing red In this state 1t does not forward any messages Note All configuration settings and all forwarding tables will be lost when the firmware is updated 7 1 Firmware Update via the Network Basically firmware downloads can be performed on every L Switch port However since the L Switch is not based on a Neuron Chip a new firmware image cannot be downloaded with a standard tool Rather a designated tool the LSD Tool see Section 9 must be used See the LSD Tool documentation for details on how to download a new L Switch firmware via the network 7 2 Firmware Update via the Console To download the firmware via the console the L Switch must be connected to the RS 232 port of a PC via 1ts console interface as described in Section 5 3 You will2. L Porte XIt XBR TP2I250 1250 KkBit Port 2v ET 10 POrLt 3r Bru Port ws RT LIO Port 5s FT 10 q Quit without saving x Exit and save Please choose Figure 22 EIA 709 configuration menu 1 to 5 Change transceiver configuration for Port 1 5 This menu item allows setting the default transceiver configuration for port 1 to 5 if there are different possible transceiver configurations For TP 1250 transceivers it is possible to set the transceiver settings to collision less backbone mode Please contact LOY TEC if you think you might need this feature For RS 485 transceivers it 1s possible to manually set the bit rate or choose bit rate auto detection If auto detection is enabled the detected bit rate is shown See Section 4 2 for an in depth discussion of this feature Please contact LOYTEC support see Section 8 5 if you want to change the default transceiver configuration e g PLT 22 in CENLEC or NON CENELEC mode 9 Bit rate auto detection configuration source only if RS 485 port is present This menu item allows to set what decision element should be used to enable or disable the bit rate auto detection If 1 DIP Switch is selected the value set on the DIP switch see Table 1 and Table 2 is used to enable or disable the bit rate auto detection If 2 Software is selected the setting made with Option 1 5 is used to enable or disable the bit rate auto detection 5 3 5 Reset configuration load factor
3. JB Updated supply voltage range from 9 22 V AC to 9 24 V AC production lot 2 Added installation instructions on ferrite Updated L Switch product label Added recommended power supplies Added connecting diagrams for LS 33300C and LS 33000C Added description of console menu Updated information on network diagnostics Added description of Wink command Added information on firmware update Added information on LSD Tool Added application note on L Switch LonMaker shapes Updated application note on L Switch backbone mode Added application note on using L Switch devices with EIA 709 IP Routers Added firmware feature list Updated cover sheet Updates for Firmware version 2 0 specifically Console Menu Network Variables and Firmware Update Moved applications notes into separate documents Added documentation of L Switch 2 port version Release version 2 0 23 01 04 Release version 3 0 28 04 04 07 02 06 JB Version 4 4 Release version 3 1 Updated for Firmware version 4 4 Updated for LS xxxxxCB and LS xxCB LOYTEC
4. ports Table 16 shows the corresponding network variables with their names network variable indices maximum update rate and the SNVT types Purpose Name Index SNVT Type Min Update Interval ms Version 4 4 LOYTEC L Switch User Manual 38 LOYTEC Interval ms Current value of internal temperature nvoSystemTemp 0 2000 sensor LM76 power supply Uptime of L Switch if RTC is present nvoUptime 2 SNVT elapsed tm Polled otherwise nvUptime day 1s set to 87 SNVT ELAPSED TM DAY INVALID Overload condition of L Switch ports bit nvoOverload 3 SNVT state 83 2000 0 to 7 correspond to ports to 8 a one on this bit signals a overload condition on the corresponding port Table 16 Output network variables provided by the L Switch Note These network variables are for monitoring purposes only It s not recommended to bind these network variables to any nodes 6 4 Wink action When receiving a wink network management message all the port LEDs light up orange one after the other back and forth three times scanner light At the end of this cycle the port LED on which the wink command was received lights up three times Note Not all firmware versions support the wink command See Section 10 on which firmware versions support this feature Version 4 4 LOY TEC L Switch User Manual 39 LOYTEC 7 Updating the L Switch Firmware The L Switch firmware supports remote upgrade over the network and the serial console
5. 1 5 Unique Node ID Address Learning 25 AMZ Repeat MAINS nenesinin a E T 23 4 1 3 Configured Router Mode L Switch XP only 26 IN A K CUOI nete taii tede tatam aa tio a 26 AD A o aesti u EN MR PRIN DEMNM wa D M TEM 21 S bo TAC unas uum au Sasu shushuna urease teas Daima q she 28 2341 Status BUON uu y u y it Ete AAN aaa bua ha nayasa 28 32 PPD SED A TN 28 Suh SCOTUS e D uu sumaya mu Qam bawa one as pu eat S ceo naa dbbadts 28 OA ROM EDS Mn re t eer err ere 28 Io OTS OG id cb 29 I2 S CSG AP o QA 29 5 3 2 L Switch Configuration Menu Main Menu 30 Joo System COnMouranOnVi O n lia 31 2 24 ElAe709C o fiourat on Mena 33 5 3 5 Reset configuration load factory defaults 33 234 INGGWOFK DIA ONOSTICS italia aid 34 5 9 Reseno the SWIC INS tables nr 35 O The L9SWIte DTI n Ne Le leal do 36 6 1 L Switch and L Switch XP as Smart Switch coooccccccccccnncncnnnoncnnnnnnnnncncncnncnnnnoss 36 02 jLeSwitch XP as ELA DO Rae e anaes 36 0 5 NGWO A tatu aote basal ool itaro tute teer EUR 37 D MEE USD NU Um 38 pdauneibe Les witch Pirin ate oo quet ice tone uci n etel sate chase uns tn e Qi uqun eu ass 39 Jo Firmware Update via the INeDWOEK iie utei u a u E i bete tU La 39 72 JI annware Update via the Consol
6. 24 LOYTEC 4 Operating Modes 4 1 Message Forwarding Modes Depending on the DIP switch settings of DIP switch and 2 the L Switch supports 3 different methods to route packets between the different EIA 709 ports Both the L Switch and the L Switch XP support smart switch mode and repeater mode The L Switch XP in addition supports the EIA 709 router mode Important Whenever the forwarding mode of the L Switch is changed using the DIP switch a reset to factory defaults is recommended 4 1 1 Smart Switch Mode The L Switch can be configured to act as a self learning switch in an EIA 709 network In this operation mode the L Switch decides based on the destination address of a message to which port s the message has to be forwarded or whether it has to be forwarded at all Thus it isolates local network traffic e g in case of heavy loaded networks This is the default operating mode for the L Switch Figure 11 shows the proper DIP switch setting to put the L Switch into learning switch mode This DIP switch setting is the factory default setting off on 1234567 Figure 11 DIP switch setting for learning switch mode factory default Important This smart switch routing aleorithm does not support any kind of network loops Important Whenever a network ts reconfigured it is recommended to clear the forwarding tables in the L Switch by pressing the status button for at least 20 seconds see Section 5 4 4 1 1 1 Domain Le
7. image was destroyed and the fall back Image was booted see Section 7 This image does not support forwarding of messages It only allows downloading a new firmware Solution If this problem occurs because a firmware update was attempted and failed somehow simply retry downloading the new firmware image If no firmware update was attempted please contact LOYTEC support see Section 8 6 8 4 LonMaker cannot commission node Problem When adding a new node to a LonMaker project LonMaker receives the service ping message from that node but is unable to commission it Explanation This problem might be due to badly configured TP 1250 port Solution See Section 8 1 8 5 All LEDs light up orange about every second Problem All LEDs of my L Switch port amp status LEDs light up orange every second or so and it does not forward any messages Explanation Probably the power supply is too weak and the L Switch reboots again and again Solution Try to use a power supply following the specifications in the user manual Version 4 4 LOY TEC L Switch User Manual 44 LOYTEC If the problem persists contact LOY TEC support see Section 8 6 8 6 Technical Support LOYTEC offers free telephone and e mail support for our L Switch product series If none of the above descriptions solves your specific problem please contact us at the following address LOYTEC electronics GmbH Stolzenthalergasse 24 3 A 1080 Vienna Austri
8. need the LOYTEC serial upgrade tool LSU Tool which can be downloaded from our homepage at www loytec com Please make sure that the L Switch console shows the main menu otherwise navigate to the main menu or simply reset the L Switch Double click on the dlc file that comes with the new firmware package This should start the LSU Tool and load the firmware image referenced in the dlc file Please note that the dlc file and the dl file must be stored in the same folder The start window of the LSU tool is shown in Figure 25 Version 4 4 LOYTEC L Switch User Manual 40 LOYTEC LSU Serial Upgrade Tool Bp BEST rf x File Image Help Information Image File prox primary dl Load Address 050000 Baudrate 38400 bps a Line Settings aM Verily String WakeUp String Fort Com Menu String Download Progress MEAN Statistics Passed Failed Display Console si eer Status Configuration file loaded 100 Figure 25 LSU Serial Upgrade Tool in idle mode If the L Switch is not connected to COMI you can change the port to COMI COM2 COM3 or COM4 Make sure that the product shown under Product matches the device you are upgrading Note that Figure 25 and Figure 26 do not necessarily show the proper product Press Download to start the download A progress bar as shown in Figure 26 can be seen erial Upgrade Too E E LSU Serial Upgrade Tool E all File Image Help Information Image F
9. 0 70 He ES eto O electronics GmbH 009 Figure 4 Connecting the L Switch LS 13333C Figure 4 shows an L Switch where Port 5 is not used Version 4 4 Power Supply LOYTEC LOYTEC L Switch User Manual 21 LOY TEC 3 Network Media 3 1 TP 1250 The TP 1250 uses transformers for galvanic isolation The topology of a TP 1250 network is a bus Thus both ends of the bus cable need to be terminated with a termination network as shown in Figure 5 102 Q 340 Q 59 Q 330 nF 150 nF Figure 5 TP 1250 Termination Network If the collision less backbone mode recommended default behavior is disabled the L Switch TP 1250 ports are fully compatible to the parameters specified by LonMark for this channel TP XF 1250 If the collision less backbone mode is enabled proprietary channel parameters are used In this case no Neuron Chip based nodes or other nodes with standard TP 1250 communication parameters are permitted on the same channel 3 2 FT 10 The L Switch FT 10 ports are fully compatible to the parameters specified by LonMark for this channel FT 10 ports can also be used on Link Power LP 10 channels However the L Switch does not provide the power supply for Link Power channels When using the Free Topology Segment feature of the FT 10 only one termination Figure 6 is required and can be placed anywhere on the free topology segment 100 uF 50V A 52 3 Q n 100 uF 50V Figure 6 FT 10 Free Topology Term
10. 15 DIP switch settings to disable bit rate auto detection Alternatively the bit rate auto detection can be enabled disabled on a per port basis via the console menu see Section 5 3 2 Further the console menu allows restarting the bit rate auto detection on selected ports While the port is auto detecting the corresponding port LED is flashing orange 4 3 Network Buffers The L Switch can handle packets from the network with a maximum length of 256 bytes There is no explicit limit in the network buffer counts Version 4 4 LOY TEC L Switch User Manual 28 LOYTEC 5 User Interface 5 1 Status Button The L Switch 1s equipped with a status button see Figure 1 When pressing the status button shortly during normal operation of the L Switch it sends a Service Pin Message on every port Note that every L Switch port has its own unique node ID Neuron ID Pressing the status button longer than 2 seconds will allow you to select the port to sends out the Service Pin Message message The port LED of the currently selected port will light up orange After 2 seconds the next available port will be selected When the status button is released the Service Pin Message is sent out on the currently selected port If the L Switch 1s operated in smart switch mode see Section 4 1 1 or repeater mode see Section 4 1 2 pressing the status button for more than 20 seconds resets the switching tables see Section 5 4 5 2 L
11. 1C B 2 Port EIA 709 A B of TP 1250 Channel Port 1 Main Earth Ground 16 17 Power Supply do not connect 17 to ground Table 13 L Switch Terminals LS 11C and LS 11CB Version 4 4 LOYTEC L Switch User Manual 19 LOY TEC 2 5 8 LS 38C 2 Port I PLT Coupler GND black of PLT 22 Channel Port 2 2 PLT Coupler Signal green of PLT 22 Channel Port 2 PLT Coupler 12V red of PLT 22 Channel Port 2 Table 14 L Switch Terminals LS 38C 2 6 Wiring Every network segment connected to the L Switch needs to be terminated according to the rules found in the specification of the transceiver see Chapter 3 Important All used and unused ports must be properly terminated LOYTEC recommends the use of the LOYTEC L Term series network terminators LT 13 or LT 33 respectively For unused ports it is recommended to use a 100 Ohm 0 25 W resistor between terminals A and B as termination Only the PLT 22 port can be left un terminated Important All Earth ground terminals must be connected to the main Earth ground terminal 24 LS xxxxxC and LS xxxxxCB or terminal 15 LS xxC and LS xxCB When using shielded network cables only one side of the cable should be connected to ground Thus the shield must be connected to earth ground either at the L Switch terminals or somewhere else in the network but never at more than one place see Figure 4 Version 4 4 LOY TEC L Switch User Manual 20 console 9 30 VDC IMPIT or 9 22 VAC 4
12. 2 Important If the L Switch is operated in smart switch mode see Section4 1 1 and is moved from one location to another or if major changes to the configuration of the network are made it is recommended to reset the L Switch configuration to factory defaults Important Wait at least 30 seconds after power up of the L Switch before pressing the Status Button to ensure that the L Switch has booted properly Important If the L Switch is manually configured it is recommended to disable the option to reset the L Switch back to factory defaults via the status button to prevent users from accidentally clearing the configuration This can be done via the console using the corresponding menu option in the system configuration submenu see Section 5 3 3 Version 4 4 LOY TEC L Switch User Manual 36 LOYTEC 6 The L Switch in a Network The L Switch is based on LOYTEC s powerful L Core and L Chip technology It is designed to be very robust and reliable in high bandwidth applications 6 1 L Switch and L Switch XP as Smart Switch In this operation mode the L Switch behaves completely transparent in a network To put it simple It installs like a repeater but works like a router Installing and operating the L Switch and L Switch XP is plug and play when using the factory default settings which have Subnet node learning enabled Group learning enabled Bit rate auto detection enabled and Collision less backbone m
13. ED Signals 9 2 1 Status LED The L Switch 1s equipped with a two color status LED green and red see Figure 1 When power is applied to the L Switch the status LED is green During boot up the status LED is used to signal error conditions red 5 2 2 Port LEDs Each port on the L Switch has a three color LED green red and orange see Figure 1 Table 15 shows the port different LED patterns and their meaning GREEN flashing fast Traffic C L GREEN flashing at 1 Hz Port unconfigured L Switch XP operated as EIA 709 router see Section 4 1 3 only RED permanent Port damaged INS Res see Section 5 4 all ports Please upload new firmware ORANGE permanent Port disabled e g using LSD Tool see Section 9 ORANGE flashing fast Traffic on port configured as management e g using LSD Tool port see Section 9 ORANGE flashing at 1 Bit rate auto detection RS 485 ports only Hz ORANGE permanent Status button pressed for more than 20 all ports seconds Switching tables will be reset once button is released Version 4 4 LOYTEC L Switch User Manual 29 LOY TEC Table 15 Port LED patterns 5 3 Console The L Switch is equipped with a serial interface to display the results of the self test allow advanced configuration via a console menu upgrade the L Switch firmware To use the serial interface the console connector see Figure 1 and Figure 2 of the L Switch can be connected to the RS 232 port
14. L Switch EIA 709 Multi port Switch amp EIA 709 2 port Switch L switch 14709 router L switch Passa gu m f ABA 38A RBA SN ua i Lii Pr rei mas T m User Manual LOYTEC L Switch User Manual 3 LOYTEC This page is intentionally left blank Version 4 4 LOY TEC L Switch User Manual 4 LOY TEC Contact LOYTEC Stolzenthalergasse 24 3 A 1080 Vienna AUSTRIA EUROPE support loytec com http www loytec com Version 4 4 Document No 88062508 LOYTEC MAKES AND YOU RECEIVE NO WARRANTIES OR CONDITIONS EXPRESS IMPLIED STATUTORY OR IN ANY COMMUNICATION WITH YOU AND LOYTEC SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE No part of this publication may be reproduced stored In a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of LOYTEC L Chip LC7093 and L CORE are trademarks of LOYTEC LonTalk LonWorks and Neuron LonMaker and LNS are trademarks of Echelon Corporation registered in the United States and other countries Version 4 4 LOY TEC L Switch User Manual 5 LOY TEC Contents IE Todu TIO ge uya nn o um dn qM ND Sukuma aa sa 9 l su C 9 T a eue ntes E AU au Sc nee 10 ko MLS UCI ys MS Sy IUCN Kuu mao apu Dtm tu itm Em intimi tentia 10 2 PEnelos
15. a Europe email supportaloytec com web http www loytec com tel 43 1 40 20 805 0 fax 43 I 40 20 805 99 or LOYTEC Americas Inc 583 Union Chapel Road Cedar Creek TX 78612 USA Email support loytec americas com web http www loytec americas com tel 1 512 332 2445 fax 1 512 332 2445 Version 4 4 LOYTEC L Switch User Manual 45 LOY TEC 9 Application Notes Please refer to the application notes listed in Table 17 for further information on using the L Switch in different application scenarios with the LOYTEC system diagnostics tool LSD tool network management tools AN004E Backbone Mode Further information on how to best utilize the high speed collision less backbone mode of the L Switch ANOOSE L Switch with L IP Backbone How to best utilize the L Switch together with L IPs Table 17 L Switch related application notes Version 4 4 LOY TEC L Switch User Manual 46 LOYTEC 10 L Switch Firmware Versions Table 18 shows the most important features available only in certain firmware versions depending on the firmware version The L Switch XP can be used with firmware versions 3 0 and up Firmware Version Features Console Menu configuration amp firmware update Aging mechanism 1 2 Final 1 Execute Wink NM command Management port mem va vv U ee E EE L Switch XP support x Commission in smart switch mode x x x x I Table 18 Available features depending o
16. addresses Node ID addressed messages are forwarded to all ports 4 1 2 Repeater Mode The L Switch can be configured to operate in a repeater mode where all messages are forwarded to all ports regardless of the address format To put the L Switch into repeater mode the following steps need to be performed 1 Set the L Switch into repeater mode switch OFF subnet node learning and group learning by setting DIP switches 1 and 2 in the appropriate position see Figure 12 and Figure 13 2 The forwarding tables must be reset by pressing the status button for at least 20 seconds see Section 5 4 Firmware versions 2 0 and up allow to disable subnet broadcast flooding Please contact LOYTEC support if you need to enable this feature Version 4 4 LOYTEC L Switch User Manual 26 LOYTEC Figure 12 and Figure 13 show the proper DIP switch settings for repeater mode on the two different L Switch versions assuming all other DIP switches remain in the factory default position off on 1234567 Figure 12 DIP switch settings to enable repeater mode for an regular L Switch off on 1234567 Figure 13 DIP switch settings to enable repeater mode for an L Switch XP 4 1 3 Configured Router Mode L Switch XP only In this operating mode the L Switch acts like a standard EIA 709 compatible router which can be configured with standard network management tools like LonMaker or NL 220 This operating mode is compatible with any othe
17. ain menu Version 4 4 LOYTEC L Switch User Manual 31 LOYTEC 3 System configuration Select this menu item to change system configuration settings See Section 5 3 3 for details 4 EIA 709 configuration Select this menu item to change the EIA 709 configuration settings See Section 5 3 4 for details 8 Reset configuration factory defaults This menu item resets the L Switch to factory defaults See Section 5 5 for details on how to load factory defaults by pressing the status button and Section 5 3 5 on how to load factory defaults through the console menu 0 Reset L Switch This menu item resets the L Switch Note Not all firmware versions provide a console menu See Section 10 on which firmware versions support this feature 5 3 3 System Configuration Menu The system configuration menu allows setting the principal operating modes of the L Switch System Configuration Menu 1 Set date time GMT e 2002 10 29 Wes odo 2 Router mode Smart Switch Mode 3 Subnet node learning subnet node DIP 4 Group learning enabled DIP 6 Block zero length domain disabled 7 Block unknown domains enabled 8 Factory reset w status button enabled q Quit without saving x Exit and save Please choose Figure 19 System Configuration Menu 1 Set date time If present this menu option allows setting the battery powered on board real time clock Older hardware versions do not come with a rea
18. al 14 LOYTEC Main Earth Main Earth Ground ET Power Inputs pu 35 VDC or 9 24 VAC 10 Table 3 Power Terminals for L Switch multi port LS xxxxxC Terminal Function Note Main Earth Ground 16 17 Power Inputs 9 35 VDC or 9 24 VAC 10 Table 4 Power Terminals for L Switch 2 port LS xxC Terminal m Main Earth Ground p Power Inputs 12 mm VDC or 12 24 VAC 10 Table 5 Power Terminals for L Switch XP multi port LS xxxxxCB Main Earth Ground 16 17 Power Inputs 12 35 VDC or 12 24 VAC 10 Table 6 Power Terminals for L Switch XP 2 port LS xxCB Important Do not ground one of the power supply wires on terminal 26 LS xxxxxC and LS xxxxxCB or terminal 17 LS xxC and LS xxCB as shown in Figure 4 Figure 3 Attach the ferrite to the power cord Attach the ferrite that comes with the L Switch to the power cord as shown in Figure 3 LS xxxxxC and LS xxC only Make sure the power cord passes the ferrite twice The following power supplies are recommended for use with the L Switch Version 4 4 LOYTEC L Switch User Manual 15 LOY TEC Manufacturer IDEC IZUMI CORPORATION Manufacturer part number PSSR A12 Description Power Supply 12V 7 5W UL 508 CSA C22 2 No 14 EN60950 100 240VAC LOYTEC order number LS PS7W Note Switched power supplies like the IDEC IZUMI PS5R A12 might interfere with power line communication If you are using the LS 38C because your applic
19. arning The L Switch supports learning of up to 4 Domains Note All messages which are received on an unknown domain are forwarded to all ports 4 1 1 2 Subnet Node Learning The subnet node learning algorithm supports segmentation of the network traffic on a subnet node basis Thus the user does NOT need to take care of any subnets spanning Version 4 4 LOY TEC L Switch User Manual 25 LOY TEC multiple physical channels Even when a node is moved from one channel to another the L Switch keeps track and modifies its forwarding tables accordingly If needed the regular L Switch allows switching off subnet node learning using DIP switch number 2 see Table 1 Note All messages with a destination subnet node address not yet learned are forwarded to all ports 4 1 1 3 Group Learning The L Switch supports group learning Groups can span multiple L Switch ports If needed the regular L Switch allows switching off group learning using DIP switch number 1 see Table 1 Note Group learning only works for messages using acknowledged or request response Service Note All messages with a destination group address not yet learned are forwarded to all ports 4 1 1 4 Broadcast Address Learning The L Switch has no learning strategy for broadcast addresses As a result all subnet or domain wide broadcasts are forwarded to all ports 4 1 1 5 Unique Node ID Address Learning The L Switch has no learning strategy for unique node ID
20. ation requires communication over the power line we strongly recommend a linear power supply or have the switched power supply tested against interference with power line communication signals The IDEC power supply is not recommended for use with the LS 38C 2 5 Connecting Diagrams The L Switch provides screw terminals to connect to the network as well as to the power supply The screw terminals can be used for wires having a maximum thickness of 1 5 mm AWG12 2 5 1 LS 13300C B 3 Port Table 7 L Switch Terminals LS 13300C and LS 13300CB Version 4 4 LOY TEC L Switch User Manual 16 LOY TEC 2 5 2 LS 13333C B 5 Port rno O se ERA Bor ame Pona 5 Beam Table 8 L Switch Terminals LS 13333C and LS 13333CB 2 5 3 LS 11333C B 5 Port Table 9 L Switch Terminals LS 11333C and LS 11333CB Version 4 4 LOYTEC L Switch User Manual 17 LOY TEC 2 5 4 LS 33300C B 3 Port Co m m Min Etro Table 10 L Switch Terminals LS 33300C and LS 33300CB 2 5 5 LS 33C B 2 Port EIA 709 A B of FT 10 Channel Port 1 Main Earth Ground 16 17 Power Supply do not connect 17 to ground Table 11 L Switch Terminals LS 33C and LS 33CB Version 4 4 LOY TEC L Switch User Manual 18 LOY TEC 2 5 6 LS 13C B 2 Port EIA 709 A B of TP 1250 Channel Port 1 Main Earth Ground 16 17 Power Supply do not connect 17 to ground Table 12 L Switch Terminals LS 13C and LS 13CB 2 5 7 LS 1
21. e can be mounted in any position However an installation place with proper airflow must be selected to ensure that the L Switch temperature does not exceed the specified range see Section 10 2 3 DIP Switch Settings The L Switch uses 7 switches to select the mode of operation Version 4 4 LOY TEC L Switch User Manual 13 LOY TEC Important The regular L Switch and the L Switch XP use the DIP switches in different ways to select the operating mode Be sure to identify the correct DIP switch setting for your L Switch version 2 3 1 Regular L Switch The DIP switch assignment for the L Switch multi port is shown in Table 1 For details see Chapter 4 DIP Function Factory Default Switch Settings Channel auto detection On Off RS 485 ports only Backbone arbitration On Off TP 1250 ports only Station ID Bit 0 LSB I OFF Station ID Bit 1 OFF Table 1 DIP switch settings for L Switch multi port 2 3 2 L Switch XP The DIP switch assignment for the L Switch XP is shown in Table 2 For details see Chapter 4 DIP Switch Function Factory Default L Switch switch mode L Switch repeater mode L Switch subnet learning Configured EIA 709 router 3 Bit rate auto detection On Off RS 485 version only Must be OFF 6 Reserved OFF Table 2 DIP switch settings for L Switch XP 2 4 Power Supply The L Switch can either be DC or AC powered Table 3 to Table 6 Version 4 4 LOY TEC L Switch User Manu
22. e router changing the DIP switches is required see Section 2 3 2 The L Switch 2 Port can be installed with any network management tool like any other standard EIA 709 router The L Switch XP multi port versions 3 to 5 ports contain multiple standard EIA 709 routers one for each port and one internal TP 1250 backbone The internal TP 1250 is neither visible nor accessible from the outside Figure 24 shows an example for a 5 Port L Switch LS 13333C Internal TP 1250 Backbone TP 1250 Figure 24 Internal structure of a 5 Port L Switch 1n EIA 709 router mode Each router must be commissioned separately The port LEDs of unconfigured routers are flashing green with a frequency of 1 Hz once per second Pressing the status button longer than 2 seconds will allow you to select the port to sends out the Service Pin Message message The port LED of the currently selected port will light up orange After 2 seconds the next available port will be selected When the status button is released the Service Pin Message is sent out on the currently selected port router If an LNS based installation tool e g LonMaker is used detailed instructions can be found in application note ANOOG6E L Switch and LNS see Section 9 6 3 Network Variables The L Switch provides the current values of the on board temperature sensor the input voltage on the power supply the uptime and the channel status via network variables on all
23. em might be due to mixing collision less backbone mode and standard backbone mode devices on one channel Solution If the TP 1250 channel is used in collision less backbone mode make sure all devices on the network have collision less backbone mode enabled only L Switch devices are connected to this backbone and every L Switch has a unique station ID set If the TP 1250 channel is used in standard backbone mode make sure that all L Switch devices have the collision less backbone mode disabled 8 2 One or more port LEDs are flashing red Problem One or more port LEDs are flashing red whenever there is traffic on the channel instead of green Explanation The L Switch has built in network analysis functionality see Section 5 4 Whenever it detects a potential problem on one port the corresponding activity LED will change its color to red Solution Most likely this behavior is due to a wiring problem Check the wiring and termination of the network connected to the affected port If this does not solve your problem use a protocol analyzer e g LOYTEC s LPA and or a network diagnostics tool e g LOYTEC s LSD Tool or Echelon s Nodeutil to find the source of the problem Version 4 4 LOY TEC L Switch User Manual 43 LOY TEC 8 3 All port LEDs are flashing red Problem All port LEDs are flashing red at a rate of approx once per second and the L Switch does not forward any messages Explanation Somehow the primary
24. er network management tools to ensure that one subnet address 1s only used behind one L Switch port This can be achieved by using our L Switch LonMaker shapes or by placing phantom routers in e g NL 220 Please contact LOYTEC support if you think you need this feature If the mode is changed via the console menu it cannot changed via the corresponding DIP switch anymore see Section 2 3 Choose 4 Set router configuration according to DIP switch to return control to the DIP switch 4 Group learning This menu option allows enabling or disabling learning of group addresses see Section 4 1 1 3 6 Block zero length domain Please contact LOY TEC support if you think you might need to block zero length domain 7 Block unknown domains The L Switch will learn up to four domains If your network contains more than four domains please contact LOYTEC support for advice Version 4 4 LOY TEC L Switch User Manual 33 LOY TEC 8 Factory reset w status button In case the L Switch is in the mode repeater or smart switch pressing the status button longer than 20 seconds resets the switching tables see Section 5 1 This function can be disabled using this menu option 5 3 4 ElA 709 Configuration Menu This menu allows changing the EIA 709 transceiver configuration enabling the collision less backbone mode for TP 1250 transceivers and enabling bit rate auto detection for RS 485 transceivers EIA709 Configuration Menu
25. ersion 4 4 LOY TEC L Switch User Manual 11 LOYTEC 2 Enclosure and Installation 2 1 Enclosure 2 1 1 L Switch multi port The L Switch multi port enclosure is 9 TE 1 TE 17 5 mm wide for DIN rail mounting following DIN 43 880 see Figure 1 DIP Switch Order Number Serial Number Unique Node IDs 1234567 Console Connector Status LED Status Button CO OC OG C TI rada EET 84 TJO VDC INPUT or D a B A B L LOYTEC o x QOOOoG eS 2 12 3 4 5 6 7 8 9 10 11 12 13 14 15 Terminals 24 25 26 Figure 1 L Switch multi port enclosure dimensions in mm 2 1 2 L Switch 2 port The L Switch 2 port enclosure is 6 TE 1 TE 17 5 mm wide for DIN rail mounting following DIN 43 880 see Figure 2 Version 4 4 LOY TEC L Switch User Manual 12 LOY TEC 1234567 Port LEDs Console Connector Status LED Status Button 300400000000 10900 15 16 17 12 3 4 5 6 Terminals Figure 2 L Switch 2 port enclosure dimensions in mm product label The product label on the right side of the L Switch contains the following information see Figure 1 L Switch order number with bar code Code 128 e g LS 13333C Serial number with bar code Code 128 Unique node ID of each port NIDx An additional label 1s also supplied with the L Switch for documentation purposes 2 2 Mounting The device comes prepared for mounting on DIN rails following DIN EN 50 022 The devic
26. f a successful boot sequence of an L Switch with 5 ports is typically 10 seconds 5 3 2 L Switch Configuration Menu Main Menu After booting the L Switch displays the following console menu L Switch Configuration Menu Show device information Serial firmware upgrade System configuration EIA 709 contigureation Reset configuration factory defaults Reset device Please choose Figure 17 L Switch main menu The menu items are described below 1 Show device information This menu item shows information on the L Switch and the current firmware The output should look like what is shown in Figure 18 Product intormation Product code S 1355350 Firmware Primary image Version Sula Build date Apr 9 2004 Serial number 000104 80000000FC80 Free memory 09347 System temp Zu Supply volu ZO Unique node IDs Eos uw VEXATUS 90 70109 00 AU GU Port 2 ELAJTOS lt 90 00 00 OU EG OE Port 3 ELATOO 50 OO 00 0 BC TE Port 4 M ETATOS lt 80 00 00 O FC 9D POB a ELA TOS 59D 0007 0000 00 PC 9C Figure 18 Device information 2 Update firmware This menu item allows updating the L Switch firmware via the serial interface console See Section 7 2 for detailed instructions Note If you select this option accidentally you can return to the main menu by sending a break signal In case your terminal program does not offer an option to send a break signal the device has to be reset to return to the m
27. i 39 S SA een ee mn Ronen et meen 42 S l TP 1250 p rt does NOU WO ta ii 42 82 One or more port LEDs are flashing red iii ai 42 62 AlEPOn LEDS are a a du ds 43 G4 LonVaker cannot commission nde sd 43 8 5 All LEDs light up orange about every second 43 5 0 Leechnical SUPPOR iii 44 Version 4 4 LOYTEC L Switch User Manual fi LOY TEC T JXDDIHICALHOBTNOIGS uds 45 LO ees wateliPiriiw are Ver Oi iesenii n ee a eoe pus ub ated ueste cua Testi e eua eias 46 WEE Gif oD E tme 47 la AS axe Cd WS daa 47 LI2 BESAR and LS xXC u u tuna it alii 47 12 REVISION ELIS CODY cessante as eadispce le mes RUNE etate asm em etum eetaxuaitien petam do ste enge al 49 Version 4 4 LOYTEC L Switch User Manual 9 LOY TEC 1 Introduction 1 1 Overview The L Switch is a high performance fully plug and play network infrastructure component for EIA 709 networks It is the first device that allows building fully manageable EIA 709 networks It is also a cost effective alternative to currently available ELA 709 routers The L Switch provides up to five communication ports and it switches packets between these ports Its unique architecture very much supports structured wiring in EIA 709 networks by reducing the number of necessary routing devices The Plug amp Play installation capability of the L Switch allows connection of the L Switch to the network without any further configuration The s
28. ile pros primary dl Load Address Ox60000 Bauchate 38400 bps pedes Line Settings BN 1 Verily String WakeUp String Fort Com Menu String Download Progress MM egeoe c c l Statistics Passed Quit Display Console Us Abort Status Downloading 100 Failed Figure 26 Progress bar during firmware download If the upgrade is successful the following window appears Figure 27 sure AN The download completed successfully Figure 27 Successful firmware upgrade Double check that the new firmware is executed by selecting 1 and pressing Enter in the console window This will bring up the device information which shows the current firmware version Important Upgrading the firmware results in all configuration data being lost If any user specific configuration was done via the LSD tool or the console menu this Version 4 4 LOY TEC L Switch User Manual 4 LOY TEC configuration has to be manually restored If the L Switch XP ts operated in configured router mode see Section 4 1 3 it has to be re commissioned Note Not all firmware versions support a firmware update via the console See Section 10 on which firmware versions support this feature Version 4 4 LOYTEC L Switch User Manual 42 LOYTEC 8 Troubleshooting 8 1 TP 1250 port does not work Problem Messages are not forwarded to or from the TP 1250 port s All other ports work properly Explanation This probl
29. ination In a double terminated bus topology two terminations are required Figure 7 These terminations need to be placed at each end of the bus Version 4 4 LOY TEC L Switch User Manual 22 LOYTEC 100 uF 50V 100 uF 50V 105 Q 105 Q 100 uF 50V 100 uF 50V Figure 7 Termination in an FT 10 Bus Topology 3 3 RS 485 The L Switch RS 485 ports are fully compatible with the parameters specified by TIA EIA RS 485 for this channel A maximum of 32 L Switch RS 485 ports can be connected to one channel The RS 485 ports support bit rates between 300 kbps and 2 5 Mbps When using bit rate auto detection see Section 4 2 the L Switch checks for the following bit rates 0 61 kbps 1 221 kbps 2 441 kbps 4 883 kbps 9 766 kbps 19 531 kbps 39 0625 kbps 78 125 kbps 156 25 kbps 312 5 kbps 625 kbps 1 250 kbps and 2 500 kbps Standard Neuron Chip compatible channel parameters with a channel priority of 4 but no node priority are used with these bit rates If bit rate auto detection is switched off the channel parameters for the LonMark TP RS485 39 channel 39 kbps are used RS 485 can only be used in a bus configuration and must be terminated on both ends The maximum stub length between the main bus and a single node is 0 3 m Figure 8 shows the termination required on both ends of the bus 120 Q Figure 8 RS 485 Termination RS 485 requires bus terminations on both ends of the bus Figure 9 Figure 9 Termi
30. l time clock In this case this menu option is not present 2 Router Mode L Switch XP only The router mode menu allows setting the principal operating mode of the L Switch routing core Normally the operating mode of the routing core is set with the DIP switches 1 and 2 but can be overridden in this menu This option is present on the L Switch XP only Version 4 4 LOY TEC L Switch User Manual 32 LOYTEC Set router mode 1 Enable Configured Router Mode 2 Enable Smart Switch Mode 2 Set router configuration according to DIP switch Please choose Figure 20 Router mode configuration menu 3 Subnet node learning This menu option allows selecting the subnet node learning mode see Figure 21 Set subnet node learning mode 1 Subnet node learning FA Subnet learning 3 Disable 4 Seb router configuration according to DIP swrcch Please choose Figure 21 Selecting subnet node learning mode If subnet node learning 1s selected the L Switch will learn based on subnet node addresses see Section 4 1 1 2 Subnet broadcasts are flooded This mode is plug amp play If subnet learning is selected the L Switch will learn based on subnets Subnet broadcasts are only forwarded to ports which contain nodes with that subnet Subnet learning should be enabled if group overloading is used in the case that more than 256 group addresses are needed Subnet learning 1s not plug amp play Please use LonMaker NL 220 or oth
31. mart switching software automatically detects the bit rates of the connected channels learns the configuration of the network domains subnet node addresses group addresses and forwards the packets between the different ports see Section 4 1 1 Optionally the L Switch can be configured via the network In addition to the Plug amp Play switch mode newer versions of the L Switch which are labeled L Switch XP can be operated as a standard configured EIA 709 router In this operating mode the L Switch 1s compatible to any standard EIA 709 router and must be commissioned using LonMaker or some other network management tool for EIA 709 networks As an additional feature the L Switch permanently collects statistic information from the attached network channels channel load CRC errors forwarding statistics etc Using this data the L Switch software is able to detect problems on these channels overload connections problems etc and warns the system operator via LEDs see Section 5 4 An intuitive user interface allows fast and easy network troubleshooting without any additional analysis tools and deep system knowledge The LSD Tool can be used for a more detailed view of the collected statistics data See Section 9 for more information on this powerful system diagnostics tool The L Switch is used for Isolation of local network traffic Structuring networks structured wiring Signal regeneration Noise suppression Ex
32. n firmware version Version 4 4 LOY TEC L Switch User Manual 47 11 Specifications 11 1 LS xxxxxC and LS xxC Operating Voltage Power Consumption In rush current Operating Temperature ambient Storage Temperature Humidity non condensing operating Humidity non condensing storage Enclosure Environmental Protection Installation 11 2 LS xxxxxCB and LS xxCB Operating Voltage Power Consumption In rush current Operating Temperature ambient Storage Temperature Humidity non condensing operating Humidity non condensing storage Enclosure Environmental Protection Version 4 4 LOYTEC 10 C to 85 C 10 to 90 RH 50 C 90 RH 50 C Installation enclosure 9 TE L Switch Multi port resp 6 TE L Switch 2 Port DIN 43 880 IP 40 enclosure IP 20 screw terminals DIN rail mounting EN 50 022 or wall mounting 10 C to 85 C 10 to 90 RH 50 C 90 RH 50 C Installation enclosure 9 TE L Switch Multi port resp 6 TE L Switch 2 Port DIN 43 880 IP 40 enclosure IP 20 screw terminals LOYTEC L Switch User Manual 48 LOYTEC AS g su Q u busesdsusescdenvoecs atone DIN rail mounting EN 50 022 or wall mounting Version 4 4 LOY TEC L Switch User Manual 12 Revision History 49 LOYTEC 31 12 01 Initial revision V1 0 I Ei u 15 09 03 DL
33. nation in a RS 485 Bus Topology Version 4 4 LOYTEC L Switch User Manual 23 LOYTEC 3 4 PLT 22 The L Switch LS 38C is shipped with a PLT Coupler module to be used with the Power Line port of the device See Figure 10 on how to connect the PLT Coupler module to the L Switch The PLT Coupler module must be plugged directly into a wall outlet Do not plug the PLT Coupler into a power strip or behind any lightning or surge protection filters which might affect power line communication Also check that a 120 VAC rated PLT Coupler is used in 120 VAC systems USA Japan and that a 230 VAC PLT Coupler is used for 230 VAC mains Europe Do not short the outputs of the PLT Coupler and follow the wiring diagram as shown in Figure 10 The LS 38C is configured for a 3 5Vpp transmit level with the CENELEC access protocol enabled For 7 Vpp transmit level and or the CENELEC access protocol disabled please contact LOYTEC for availability at sales loytec com status iene 9 15 VOC INPLIT or 3 24 VAC 40 70 Hz a L Bod ee op www loytec com DOGE D Q9 5 Q 5 S L j 3 X Wh PLT ah Coupler Power Supply Figure 10 Connecting the L Switch to the Power line Coupler bl black gn green rd red O HR a e Q e Important To minimize the channel load on the power line channel LOYTEC strongly recommends operating the LS 38C as configured router only see Section 4 1 3 Version 4 4 LOYTEC L Switch User Manual
34. ode for TP 1250 ports disabled After connecting the network cables the L Switch can be powered up and it will start its switching application When using a standard binding tool e g LonMaker bindings between nodes connected to different ports can be done without considering the L Switch Further an L Switch can be added anywhere to an already configured network without reconfiguring the nodes in the network Optionally the L Switch XP can be configured as a repeater If configured as repeater this does not have any impact on the routing algorithm of the L Switch in smart switch mode In case the L Switch has to be visible in an LNS base binding tool e g LonMaker LOYTEC provides LonMaker shapes for the different L Switch models e g for documentation purposes Please refer to application note ANOO6E L Switch and LNS see Section 9 for details The smart switch mode is the default operation mode for all L Switch models 6 2 L Switch XP as EIA 709 Router The L Switch XP is designed to be compatible with standard EIA 709 routers if operated as EIA 709 router Thus It requires commissioning via a network management tool e g LonMaker like any standard EIA 709 router to be fully functional Note This operation mode is only available on models labeled L Switch XP Version 4 4 LOY TEC L Switch User Manual 37 LOYTEC Note When shipped the L Switch XP comes configured in smart switch mode To use it as EIA 709 compatibl
35. of a PC Now the PC can communicate with the L Switch using a standard terminal program with the communication settings set to 38 400 bps 8 data bits no parity 1 stop bit For the LS xxxxxC and LS xxC series a 1 1 female male serial cable is required to connect the L Switch to the RS 232 port of a PC while on the LS xxxxxCB and LS xxCB series a standard null modem cable with full handshaking must be used 5 3 1 Self Test Whenever the L Switch comes out of reset it performs a self test If the self test passed successfully all port LEDs successively turn green for 0 5 seconds If a failure occurs during self test the status LED is flashing red and the L Switch is reset The console output of a successful boot sequence on an L Switch with 5 ports on the console reads as follows LOYTEC electronics GmbH www loytec com Testing Board ID OF Passed Testing RAM Passed Testing boot loader Passed Testing fallback image Passed Testing primary image Passed Testing Flash Passed Loading primary image Passed Starting application Passed Port 1 detected XF TP 1250 Passed Port 2 detected FT 10 Passed Port 3 detected FT 10 Passed Port 4 detected FT 10 Passed Port 5 detected FT 10 Passed I SOWITGH GC LOYTEC electronics GmbH Thu bec 22 Tas 5ee ul 20025 Med 0 System has passed self test and is active Figure 16 Console messages during the boot phase Version 4 4 LOYTEC L Switch User Manual 30 LOYTEC The duration o
36. r standard EJA 709 router It is only possible on the L Switch XP Figure 14 shows the proper DIP switch settings for EIA 709 compatible router mode assuming all other DIP switches remain in the factory default position off on 1234567 Figure 14 OFF OFF DIP switch settings for configured router mode Standard EIA 709 routers allow 4 different operating modes which must be configured via a network management tool e g LonMaker configured router learning router bridge and repeater Since the learning algorithm in the smart switch operating mode see Section 4 1 1 is superior to the learning router mode of a EIA 709 router the learning router mode is not supported by the L Switch Further note that the repeater mode of the EIA 709 router differs from the L Switch repeater mode see Section 4 1 2 While the L Switch repeater mode is transparent and does not require any additional configuration the repeater mode of the EIA 709 router must be configured using a network management tool and thus requires commissioning 4 2 Bit Rate Auto Detection The L Switch supports bit rate auto detection on RS 485 channels The factory default DIP switch setting enables bit rate auto detection on all RS 485 ports Figure 15 shows the DIP Version 4 4 LOY TEC L Switch User Manual 27 LOY TEC switch settings to disable bit rate auto detection assuming all other DIP switches remain in the factory default position off os 1234567 Figure
37. rrors have occurred on a port with a power line transceiver or more than 5 on a port with a transceiver other than power line or the L Switch was not able to process all available messages For a deeper analysis of the reason of the overload condition it Is recommended to use a protocol analyzer e g LOY TEC s LPA or a similar tool The exact reason of the overload condition can also be determined with the LSD Tool see Section 9 Version 4 4 LOYTEC L Switch User Manual 35 LOY TEC 5 5 Resetting the switching tables If the L Switch is in smart switch mode see Section 4 1 1 or repeater mode see Section 4 1 2 the status button needs to be pressed for at least 20 seconds in order to reset the switching tables Resetting the switching tables means Clearing the group forwarding the subnet node forwarding and the router domain table Clearing the L Switch status and statistic data Resetting the L Switch back to unconfigured state All this is done when the button is released Afterwards a reset is performed to let the changes take effect Once the button 1s held down for more than 20 seconds all port LEDs are switched to orange and stay orange until the button 1s released and the L Switch is reset This indicates that the switching tables were reset Alternatively to holding down the status button the switching tables can be reset by selecting the menu item Reset to factory defaults in the console menu see Section 5 3
38. tending channels in their physical dimension and or number of nodes Connecting channels with different communication media types e g power line and FT Network monitoring and network management Version 4 4 LOYTEC L Switch User Manual 10 LOY TEC 1 2 Scope This document covers L Switch devices with firmware version 4 4 See Section 10 for differences between the different L Switch firmware versions 1 3 L Switch vs L Switch XP The L Switch comes in two versions Newer versions of the L Switch are labeled L Switch XP while older versions are just labeled L Switch without XP The main difference 1s that the L Switch XP can be configured to operate as a standard EIA 709 router which can be commissioned using LonMaker or any other network management tool for ELA 709 networks The devices which do not have the XP label do not offer this operating mode In this document older versions of the L Switch are referred to as regular L Switch wherever there is aneed to make a distinction from the new L Switch XP Further the L Switch is available in two different housings A multi port version which can have up to 5 ports see Figure 1 and a 2 port version in a smaller housing which comes always with 2 ports see Figure 2 This document covers all versions of the L Switch Differences between these versions are pointed out in the corresponding sections Please identify the L Switch version you are using before reading this manual V
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40. y defaults This menu item allows resetting the device into its factory default state The following menu appears Version 4 4 LOYTEC L Switch User Manual 34 LOYTEC Reset Configuration Menu 1 Reset everything to factory defaults 2 Reset switch configuration to factory defaults Real Back to main menu Please choose Figure 23 Reset to factory defaults menu 1 Reset everything to factory defaults Pressing 1 resets the complete device to factory defaults including error log etc 2 Reset switch configuration to factory defaults Pressing 2 performs a reset identical to pressing the status button longer than 20 seconds see Section 5 5 Use this menu item if you are moving EIA 709 network nodes between different EIA 709 channels 5 4 Network Diagnostics The L Switch provides simple network diagnostics via its port LEDs 1 If the port LED does not light up at all this port is not connected to any network segment or the connected network segment currently shows no traffic 2 If the port LED 1s flashing green the state of the network segment connected to this port 1s ok 3 If the port LED is flashing red a potential problem persists on the network segment connected to this port This state 1s referred to as overload conditions A port overload condition occurs if the average bandwidth utilization of this port was higher than 70 or the collisions rate was higher than 5 or more than 15 CRC e
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