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1. t Series Programmable DC Power Supplies 200W 400W 600W 800W in 2U Built in USB RS 232 amp RS 485 Interface TDK Lambda USER MANUAL FOR LAN Interface lt gt POWER SUPPLIES Manual Supplement Refer to the Z Technical Manual for information on installing the power supply safety requirements specifications operating the front panel using the serial RS 232 485 USB programming and the analog programming IA710 04 02F Contents 1 GENERAL INFORMATION Tb MVE CIC Ul OMA seneuna E tenants 4 1 2 Feature SUMAN AN Yc ar cecteseadeteecetaect sence cccceeesaucuees aces cces cesar ideian aei ieai iiaae uesia ieie 4 2 SPECIFICATIONS 2 1 Power Supply Specifications ees ssssessssessssesssesssseessecessecesseesssesosseesseeesseeesseesssesssseosserosserosserssss 5 2 2 LAN SCC INCA ON ict ccscs tua stcastceee ta ise attscdsiecotevisteatesatcsestarescloaretssartonctadehsvesdaciosthasblastitaerasvertvooleats 5 2 3 LAN Command Speed sssesseessesseessesscesseosssssesseesseeseesscencesseossesseesecoseesecoseesseoseossesseesscoseeseroseessess 7 3 SELECT THE CONTROL METHOD 3 1 Control Method ODON S cx iscenccicicecteouratistinnnrecrtaienien tine tenon ESE AiR 8 3 1 1 Select Local Front Panel Mode sisisinxcivericariavssvivisdeavinieedusensseavesinuthjuedetiavasioentasedienasasiidvipaciobensansesebivaievsnsesiven 8 3 1 2 Select Serial RS 232 amp RS 485 Remote Mode weccccccccssssssssssssssssssesssssssssss
2. Assigned in the LAN Modify web page see section 6 6 2 or Assignment Assigned by the network server Assigned by the power supply by setting the IP1 4 address on the front panel see section 5 2 Address may change as the DHCP server assigns addresses dynamically to many instruments Duplicate The DHCP server should Finds another available auto IP The LAN Status LED and Front Addresses prevent duplicate IP addresses address Panel blink Fixed for the power supply except if an address collision is detected Always fixed for the power supply 11 TDK Lambda 4 5 Hostname The hostname is a text address instead of a numeric address for example Z10 40 2 9B This address mode is less common than the IP address because the hostname cannot be viewed from the front panel and because a naming service such as NetBIOS must be running in the LAN computer A custom hostname can be created through the web pages see section 6 6 2 For example you can change the hostname to LAMBDA The control program can then send a command to LAMBDA After a LAN Reset is done see section 5 3 the power supply will create a default hostname based on the model and serial number of the power supply The default hostname is in the format lt Product gt lt Voltage rating gt lt Current rating gt lt last 3 digits of serial number gt If the rating has decimal point substitute P for the decim
3. This address only applies to a multi drop chain of power supplies The RS 485 address of the LAN supply is also called the master supply Hostname A unique name for a device on a network The default hostname is described in section 4 5 and it is configured in section 6 6 2 If the hostname is not registered with the network name server then the IP address will be shown here Auto MDIX The LAN will automatically detect if a patch or cross over LAN cable is used Auto Negotiate The LAN will automatically adjust to the fastest speed available Logging In To change power supply output or the LAN settings a user must first log in Click the Login button at the bottom left side of the web page and a window appears The only acceptable user name admin is shown By default password is empty Click Login The password may be set or removed on the LAN gt Users web page A front panel LAN Reset will clear the password see section 6 6 5 16 TDK Lambda Po Series Programmable DC Power Supplies 200W 400W 600W 800W TDkK Lambda Output Blink Identify Multidrop RS 485 supply ZPL 10 Refresh list Measurement Settings Check To Modify O Output Apply On Voltage Limit Current Limit cance Off 630 Amps Password Copyright 2009 2011 All rights reserved 6 4 Login Rules e Any number of users may view the web pages of a power supply at the same time However
4. VOLT 50 GLOB VOLT 70 wait 20 mSec VOLT 90 Then all the supplies on the multi drop chain will be set to 70 volts except the supply at RS 485 address 4 will be set to 90 volts after the global command further INST nSEL is not required 31 TDK Lambda 12 4 3 Selecting a Supply This command will select one power supply in a multi drop chain Subsequent commands and queries will operate only on that supply until a new one is selected At power up the LAN supply is automatically selected Syntax INSTrument nSELect lt nn gt Parameter lt nn gt is the supply s RS 485 address It isa number from 1 to 31 Example INST nSEL 6 Query INST nSEL will return 06 in the example GLOBAL COMMANDS The following global commands affect all power supplies on a multi drop chain There is no query version of these commands 12 4 4 Global Set the Voltage Limit Syntax GLOBal VOLTage AMPLitude lt nn nn gt Parameter lt nn nn gt is volts the setting applied to all power supplies Example GLOB VOLT 9 45 12 4 5 Global Set the Current Limit Syntax GLOBal CURRent AMPLitude lt nn nn gt Parameter lt nn nn gt is amps the setting applied to all power supplies Example GLOB CURR 350 12 4 6 Global Set the Output ON or OFF Syntax GLOBal OUTPut STATe lt 0 1 OFF ON gt Example GLOB OUTP STAT ON 12 4 7 Global Reset Power Supplies Syntax GLOBal RST Example GLOB RST 12 4 8 Global Save All Settings Syntax GLOB
5. 33 TDK Lambda Cannot View Web Pages Over a Peer to Peer Network If there is no gateway to a network verify the proxy server is disabled in the web browser With Microsoft Internet Explorer open the browser and on the toolbar navigate Tools gt Internet Options gt Connections gt LAN Settings and see the windows open Verify the Proxy server checkbox is NOT checked Proxy server O Use a proxy server for your LAN These settings will not apply to dial up or VPN connections Cannot Open Web using Laptop or Dual LAN Card Computer Ifyou have a computer with two network cards the computer may not know which card to use when trying to open the Z web page Verify the two cards do not have over lapping IP address ranges otherwise it may be necessary to disable or disconnect the network card that is not being used If you have a laptop computer with an Ethernet jack and a wireless network it may be necessary to disable the wireless LAN port For running VISA programs see section 7 two network cards is not a problem because the VISA resource descriptor includes the network board identifier Web Page Fields Appears as Blocks The web pages have numeric fields such as the voltage settings If icons show instead of numbers then the Java Runtime Engine JRE may need to be installed on your computer If the JRE is already installed a slow network connection can also create this situation T
6. the update rate becomes slower as more web pages are opened e Only one user at a time may be logged in to modify the power supply settings e fan automation program with VISA is running then you may view the web pages but you cannot login to change settings e Ifa user is logged in then a VISA or socket connection cannot be opened by an automation program e A user may logout by clicking the Logout button by closing the web browser or by leaving the web browser idle for LAN Keep alive seconds see section 6 6 3 e faweb page is Logged in another copy of the web page can not be opened e If an automation program with socket is running you can not open the Web Page 17 TDK Lambda 6 5 DC Power Page When the DC Power tab is clicked the following web page opens This page and its sub menus allow you to operate the power supply and adjust its output settings te Series a ae Programmable DC Power Supplies 200W 400W 600W s00W TDK Lambda Blink Identify Measurement Refresh list Multidrop RS 485 supply ZPL3 Voltage CV 33 000 V Current CC 0 000 A Settings Check To Modify Output Apply On Voltage Limit Current Limit Canc 32 99 Volts 12 600 Amps 6 5 1 DC Power gt Output Page When the DC Power tab is selected the Output soft front panel GUI loads first Refresh List When this button is clicked the w
7. ON naaa a e EAA E ORAO EAA EEN O A A 30 12 2 Configure the LAN Supply ssssessssessseesssesssseesseeesseeesseessseessseesseeenserosseessseosssrosserosseeosseesssesssseoss 30 12 2 1 To Set Up the Master Power SUpply ccccsssssssssssscesessessnsssssesessessesssseesssssssnsesseesessesansssnsesesseseesssseesessees 30 12 2 2 TO Set the RS 485 Address ssssssesssssssssssessseserssoosstossesntesnsostcnstesstosetassesneesttastonstosotastosnoesntosttstesotesttastrsntrnt 30 12 3 Connect and Configure the RS 485 Supplies ss ssseesseesseesseesseesseesseceseesseceseeeseeeseeeseeeseeesss 31 2al TO a Upan Ro A CTI eenean elan aia ee haa R 31 12 4 Multi drop Programming Using SCPI Commands s ssesseessesssessesssesseesecsseesecoseessesseossesseessee 31 12 4 1 Selecting One Power Supply in a Multi drop CHaIN essecccsccsssseesesssssesessecsessessesssssnsssssssesssseesessen 31 1242 Global Commands ina Mutara Chai esra Ei 31 PEE EE E E AA E ENN E AEA A E ATE 32 2AA GTO Wa SSE IVS Voltage UMi essnee 32 PAS dOr ee I Plt eA 32 PAoa ethe Output ON Or OF Pesenan a a 32 1247 Glopal Reset Power SUPP RIES csicscceszsascexccucssecscsncecestectnssseyeanseetosvsceciaceavtsvadhstacincsstedanidtast aaessatectustiouaeaseneueit 32 PAS GODA Save ANSON reenit orai ea ENET EN 32 2A GOGA Fecal MS seeren anaia ENE T NE 32 TS TROUBLESHOOTING wessscesuaseacsccccscsawesacsucecdsensscasesdaccdsecssacuasascavbecataesssesosooessensac sess 33 TDK Lambda 1 GENERAL INFORM
8. address or hostname Example VISA resource descriptors for the Z power supply with LAN are Format TCPIP board IP address Host Name LAN device name INSTR board is the LAN card number zero is optional LAN device name is by default inst0 INSTR is optional Examples TCPIP 10 225 26 60 inst0 INSTR TCPIP1 Z10 40 001 INSTR 7 4 Communicating Using VISA The VISA Write function will send SCPI commands to the power supply the VISA read will read the response returned from a SCPI query 24 TDK Lambda 8 PROGRAMMING USING IVI DRIVERS 8 1 IVI Description In the test and measurement industry the Interchangeable Virtual Instrument is a set of specifications which standardize instrument driver technology IVI is built upon the VISA hardware drivers IVI has interfaces so almost any programming language can use standard calls to NET COM and DLL libraries The IVI instrument can be configured with a management utility such as National Instruments Measurement and Automation Explorer MAX program or the Agilent I O Libraries IVI settings may also be made programmatically through optional parameters These allow several benefits to system designers e IVI standardizes common functions to reduce the time needed to learn a new IVI instrument You do not need to learn the Z power supply s SCPI commands e Instrument simulation allows developers to run code without an instrument e Automatically p
9. it has finished processing all commands It is recommended that your controller routinely sends SYST ERR This query takes 50 mSec and verifies that all commands have been accepted correctly When using sockets no more then 20 SCPI commands may be sent before a query is sent TDK Lambda 9 5 Message Terminators When you are using a program that sends separate SCPI commands out through a TCP socket the socket drivers may combine all the messages into one long packet Therefore it is necessary to add a terminator character to the end of each SCPI command A All SCPI commands must have a terminator character o ferminta Character and ASCII hex One or more terminators required Commands from the Controller Line feed Carriage return Ox0A 0x0D A All responses have Line Feed and Carriage return at end Responses from the Z LAN izon and Gok 9 6 Using TCP Sockets This is the most popular socket type It features a managed connection message acknowledgements transmission error detection and correction Open TCP socket port 8003 to send SCPI commands Responses to queries are sent back automatically with a line feed terminator and carriage return appended If the web page LAN controller access is set to Multiple Clients then up to three controllers may open TCP sockets to one power supply at the same time 9 7 Using UDP Sockets This is a simpler socket type with reduced network traffic It is a connectionless
10. protocol because messages are sent and there is no acknowledgement that they have been received Open UDP socket port 8005 to send SCPI commands Responses to queries are sent back automatically with a line feed terminator and carriage return appended Before opening a UDP socket it is required to open the web page and set the controller access to Multiple Clients see section 6 6 2 Only one controller may open UDP socket to one power supply at a time 27 TDK Lambda 10 CONNECTING OVER WAN To connect over the Wide Area Network i e the global internet the following settings must be made in the network server 10 1 View Web Pages Over WAN The Z power supply LAN interface has a server for running the web pages The web server is listening in Port 80 The network administrator must obtain and assign a Global IP for the power supply On the network server the network administrator also must ensure port 80 is exposed to WAN connectivity 10 2 Use Sockets Over WAN The network administrator must obtain and assign a Global IP for the power supply On the network server the network administrator also must ensure port 8003 for TCP sockets or port 8005 for UDP sockets are exposed to WAN connectivity 28 TDK Lambda 11 COMMAND SET For the complete command set please refer to Z Instruction Manual 11 1 Lan Specific Commands 11 1 1 Read the Hostname The hostname may be read with this query Syntax SYSTem COMMu
11. 18 OSTU POW er S QUNUT ae ge a AA E ii 18 6 2 DE POW gt PIO COON PAG sarnaneda a A E 18 he Oi S EOM AGEe a aS 19 GSA DC Power 3 Utility PaGEnenianinai naa A A i 19 GOLAN PaE nE A aeesatantocuiacesneesaisseceeaees 20 ARE A a EAEN VEA AAA AE A 20 6 6 2 LAN gt Configure Modify PAGE vseseesssessesssssssscssccsscsssssssssssssssssssssssssssssssssseseeeesessassssssssssssssssssssesessseseesees 21 6 6 3 LAN gt Advanced Pae u csesssssssssssssssssssssssssssssssssssssssesssessessssssesssssssssssssssssesseesssssesssssseessessesssesseessessssssssseessessess 22 6 6 4 LAN gt Advanced Modify PAGE wessseesesssssssssssssscesscssssssssssssssssssssssssssssssssesseseessssssssssssssssssssssssssscsssesseeees 22 OOS LAN LIS CIS PACE iscassessnnennssbisinistomcssuoanintaniearciuaiadsiowmenusestann E EEE ONNENN ERE NESEN EONAR 23 OS AELE EOD O martina A T E E ON eens raieses 23 7 PROGRAMMING USING VISA DRIVERS TANDA DESCHDUO M eeunas ni es ve iE Ni iS EA E aSU E ENSS ASE EESTE 24 LANAI COMI ACU ING senese E O 24 7 3 Opening the VISA Connection sesssessssssesssesseeseessceseesseossesseossesseesecoseeseesseosseoseossesseeseeoserseessee 24 7 4 Communicating Using VISA sseseesessessesessessessesessesseseesssseosessoseesessesseseosessesseseosesseseosesseseessoseosesses 24 8 PROGRAMMING USING IVI DRIVERS SDE CIDO 9 urn ce senrnrtr A R A tren 25 SPRA EE TE EE a IAEI E E NOA ONE A O E O TT E OE N 25 9 PROGRAMMING USING SOCKETS 9 1 Socket Ci LON ernessnsnn
12. ATION 1 1 Introduction The Local Area Network LAN option for the Z series power supply allows the user to remotely program measure and check status of the power supply A computer web page browser can be used to operate the power supply through a built in web page server For applications including factory and test automation communication is made using several standard network protocols and instrument commands Refer to the Z User Manual for information on installing the power supply safety requirements specifications connecting the power in and out operating the front panel using the serial RS 232 485 programming and analog programming 1 2 Feature Summary e Communicate over any standard TCP IP network A LAN Local Area Network B WAN Wide Area Network C Communicate worldwide using the Internet e Web page viewable with any web page browser such as Internet Explorer D Configure the network connection settings E Active web page GUI that programs and reads the power supply output and status F Security settings to block multiple controllers and risky protocols G Optional password protection prevents unauthorized operation e LAN Protocols VISA drivers TCP and UDP sockets are supported VXI 11 Discovery and ping server are supported A LAN Status indicator shows when the network connection is established Easily write custom automation programs IVI COM and IVI C drivers are available for download e Full remote
13. Display and HOLd will be shown on Current Display for about 1 sec It may be required to toggle the AC ON OFF switch WU BWN gt 13 TDK Lambda The default LAN settings are DHCP is enabled If DHCP fails to get a lease the auto IP settings will be obtained IP address 169 254 XXX XXX Subnet mask 255 255 0 0 Default gateway 0 0 0 0 DNS Server 0 0 0 0 Hostname zvvv aaa sn Description Z Power Supply Controller Access One Client Only Ping Server Enabled Keep Alive 1800 Seconds 30 minutes Auto Negotiate Automatically select network speed VXI 11 Discovery Enabled Password None 14 TDK Lambda 6 WEB PAGES 6 1 Benefit of Web Pages The Z web pages are useful for e Reading the power supply model identity revision and LAN setup information e Configuring the LAN connection e Programming and reading the power supply DC output 6 2 Opening the HOME Page Once the rear panel LAN Status LED has turned green see Section 4 3 you may open the Z web page 1 Read the IP address from the front panel refer section 5 1 for details 2 Open a web page browser program such as Internet Explorer Enter the power supply IP address as shown below Click the GO button Home Windows Internet Explorer Se The power supply Home page will appear If it does not refer to section 13 Troubleshooting 3 Alternately the hostname may be used for addressing the web page as shown below if the po
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15. al SAV x x 1 2 3 4 Example GLOB SAV 1 12 4 9 Global Recall All Settings Syntax GLOBal RCL x x 1 2 3 4 Example GLOB RCL 1 32 TDK Lambda 13 TROUBLESHOOTING Cannot See the IP Address LAN Status LED Stays Red If IP1 IP4 does not show then LAN is not enable To fix this A Switch the power supply AC OFF B Verify the LAN is selected see section 3 1 3 C Switch the power supply AC ON again See the voltage display shows LAn for a few seconds during power up IP Address is All Zeroes LAN Status LED Stays Red When viewing the IP address on the front panel and you see the IP address is all zeroes then the power supply is not connecting to the network A Verify the LAN cable is connected to an active network Look at the rear panel Link LED part of the RJ 45 connector see section 3 1 3 and verify it is green If the LED is not lit then the LAN cable is not connected properly B Wait longer and try to read the IP address again In the Auto IP mode the power supply will wait a full 30 seconds to assign an IP address after power up C There could be an address collision on the network where two devices on the network have the same IP address If the power supply detects this it will refuse to assign an IP address and it stays all zeroes This only occurs if the power supply is in Static addressing mode see section 4 4 To correct this situation do either of i Do a front panel LAN Reset see sec
16. al point For example Serial Number Default Hostname Z10 40 LAN 08342103 Z10 40 103 Z100 4 5 LAN 15M32123 Z100 4P5 123 The power supply may be set to one of three network modes each with a different way to use the hostname This is shown in the table below Beene Hostname by NetBIOS Hostname by NetBIOS None hostname cannot be used Protocol Hostname on Shows Host name on Home Shows Host name on Home Shows IP address on Home page and LAN Configure page page and LAN Configure page page and LAN Configure page NOTE Two power supplies should not have the same Host Name if Host Name is used for Communication 12 TDK Lambda 5 LAN SETUP 5 1 View the IP and MAC Addresses When the power supply is operating with the LAN enabled the IP and MAC addresses may be viewed on the front panel by following these steps To view the IP address 1 Press the Remote switch Move the Voltage Encoder until IP is seen on the Voltage Display 2 Press the Voltage encoder and move the encoder to view the IP address The voltage display will show IP1 IP4 as you move the encoder The current display will show the required IP To view the MAC address 1 Press the Remote switch Move the Voltage Encoder until MAC is seen on the Voltage Display 2 Press the Voltage encoder and move the encoder to view the MAC address The voltage display will show mAC1 mAC6 as you move the encoder The
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18. current display will show the required MAC 5 2 Change the IP Address The LAN allows you change all four numbers octets of the IP address from the front panel The IP address has four numbers ex 10 97 4 4 Each number may be set to any value from 1 254 To change the IP address 1 Press the remote button Move the Voltage Encoder until IP is seen on the Voltage Display 2 Press the Voltage encoder and then move the encoder to view the IP address The voltage display will show IP1 IP4 as you move the encoder The Current display shows the required IP address Move the Current encoder to change the IP address and then press the encoder 3 LAn willbe shown on Voltage Display and HOLd will be shown on Current Display for about 1 sec 4 If another device is using the same address you want to set the front panel LED will blink and the address will revert to it s previous status Press any button to stop the blinking When you change the IP address from the front panel or LAN gt Cofigure gt Modify Page the Z LAN will switch to STATIC addressing DHCP and Auto IP addressing will be disabled 5 3 LAN Reset To reset the power supply to the factory default LAN settings Press the remote button Move the Voltage Encoder until rST is seen on the Voltage Display Press the Voltage encoder rST will be seen on the current display Press the Current encoder to reset the system LAn will be shown on Voltage
19. e settings click Check to Modify After settings are made click Apply To view the actual settings deselect Check to Modify 6 5 2 DC Power gt Protection Page Under the DC Power tab a Protection button is available at the top of the panel When opened the window allows you to view and set four protections Over Voltage Protection Limit Under Voltage Limit Foldback Protection Auto Start or Safe Start In a multi drop chain these settings affect only the supply selected in the RS 485 address list box mOMADW D gt 18 TDK Lambda Programmable DC Power Supplies 200W 400W 600W 800W TDK Lambda Protection Multi Drop RS 485 Address ZPL 6 Over Voltage Protection OVP Settings New Setting Set to Maximum 24 000 Set to value Under Voltage Protection UVP Settings New Setting Set to Zero 0 000 Set to value Foldback Protection OCC O Cv OFF Auto Start Setting O Safe start gerne Apply 6 5 3 DC Power gt System Page Under the DC Power tab a System button is available at the top of the panel When clicked a window opens that allows you to operate four functions A Reset One Instrument this resets only the supply selected in the RS 485 address list box B Reset All Instruments this resets the supplies connected to the multi drop bus C Save this saves the settings for only the supply selected
20. eb page will scan to find connected Multi drop power supplies and put the discovered addresses into the list box This button only applies to a multi drop chain as described in section 12 It is required to click the button after clicking the DC power button connecting or disconnecting a power supply or changing the 485 address Please wait 3 4 seconds before clicking the refresh button Select RS 485 Multi drop Address This address is described in section 12 This address only applies to a multi drop chain of RS 485 supplies If there is no multi drop only the address from the single LAN supply is available Blink Identify When this button is clicked ON the selected power supply front panel blinks and the rear panel LAN LED blinks This function allows you to quickly identify which power supply is being communicated to in a rack of instruments In a multi drop chain only the master LAN power supply will blink The blink identify is turned OFF by clicking this button again or by operating any knob or button on the power supply front panel or by SCPI command Measurements This section displays the selected power supply s actual output voltage and current and the operating mode constant voltage or constant current or off Also faults are shown in the voltage display Settings This section displays the selected power supply s voltage and current limit as if they were set on the front panel encoders and output ON OFF settings To mak
21. er LAN Reset LAN PROTOCOLS TCP IPv4 Instrument Protocols VXI 11 VISA TCP Sockets UDP Sockets VXI 11 Discovery SNMP Ping Server HTTP COMMANDS SCPI IEEE 488 2 Meets IEEE 802 3u specifications Accepts patch or cross over cable connection Selects fastest of 10Base T or 100Base T networks 10 or 100 Megabits per second TDK Lambda assigned 00 19 9 xx xx xx View or set from front panel Get address from network server Leasing services Create own IP address 169 254 xxx xxx Any IP fixed by operator NetBIOS protocols Operator settable name Reject duplicate setting or disconnect from network Mask set by DHCP or static Address set by DHCP or static Address set by DHCP Reset configuration from front panel or SCPI command LAN packets follow Transmission Control Protocol Internet Protocol version 4 Supports Core channel not Abort or Interrupt channels VXI 11 compliant uses RPC and Portmapper SCPI commands Send SCPI commands to port 8003 Send SCPI commands to port 8005 Find connected instruments Verify LAN connection to instrument Web page server with Java scripts and applets SCPI 1999 compliant command measure and status Condition and event register tree TDK Lambda WEB PAGES Multiple users Identity LAN Configuration Active Control GUI Send Commands Help SUPPLY CONFIGURATIONS Local Control LAN Remote Control RS 232 485 Control Analog Control Series Parallel Supplies Advanced Pa
22. erform a status check to verify each power supply setting is acceptable e IVI drivers feature a variety of wrappers to allow simple interfacing to a variety of Windows programming environments e VI drivers provide for interchangeability Interchangeability allows easy swapping of instruments without changing the control program 8 2 IVI Support There are a variety of websites that give additional information on IVI including e ThelVI Foundation home page has good Getting Started tutorials for a variety of programming languages www ivifoundation org e LambdaZPlus IVI drivers and some tutorials are available on Z Series CD ROM 25 TDK Lambda 9 PROGRAMMING USING SOCKETS 9 1 Socket Description The VISA drivers for the Z power supply with LAN are popular in the Test and Measurement world However some customers cannot use VISA because of installation or licensing issues or because the controller i e industrial PLC does not support VISA If you cannot use VISA drivers then the Z with LAN offers socket connections This is low level LAN protocol that is universally available in all operating systems and programming environments 9 2 Communicating Using Sockets Communicating through sockets involves opening a socket connection and sending SCPI text commands and reading the responses The functions a programming language used to manage the socket is called the TCP stack There are two types of socket protocols wh
23. ges to LAN settings or power supply output settings Set to prevent multiple programs from taking control Single client will block attacks through UDP sockets Stop intruders from finding the power supply Stop intruders from finding the power supply TDK Lambda 2 3 LAN Command Speed The following communication speeds are typical values only In addition to the variability in the Z LAN interface there are timing variations within the controller and the network routing The following speed specifications are subject to change without notice VISA Drivers Sockets Typical Command or query speeds All commands and queries have a response time in the range of 45 50ms TDK Lambda 3 SELECT THE CONTROL METHOD 3 1 Control Method Options The power supply with the LAN option installed may be operated through four interfaces This section describes how to enable each option Control using an Ethernet connection LAN will disable the J4 IN serial port Control using the front panel encoders and buttons LAN can be used to measure and read 3 Serial Control using RS 232 and RS 485 through J4 IN and Serial will disable the LAN port J4 OUT connectors 4 Analog Control using analog signals through J1 and J3 LAN local or serial may still be used to connectors measure and set protections 3 1 1 Select Local Front Panel Mode The power supply may be operated in local or analog control mode even when a computer is using the LAN connectio
24. he Java Runtime Engine may be downloaded from www java com Java is a trademark of Sun Microsystems Also in the web browser you may have to enable Java scripts and Java applets With Microsoft Internet Explorer do this by opening the browser and on the toolbar navigate Tools gt Internet Options Advanced tab and scroll down to find Java Sun Internet Options Use UTF for maito links A Java Sun Use JRE 1 6 0_18 for lt applet gt requires restart Verify the Use JRE checkbox IS checked 34 TDK Lambda Web Page Refresh List Does Not Find Slave Supplies When you are using a LAN Multi drop chain of supplies see section 12 the web page Refresh List button should detect all the connected RS 485 slave supplies If it does not A Verify the LAN master is set for LAN B Verify all slave supplies are set for RS 485 C Verify all slave supplies are set for unique addresses and they are set for 57 6k Baud 35 NOTES GLOBAL NETWORK NORTH AMERICA TDK Lambda Americas Inc 3055 Del Sol Boulevard San Diego CA 92154 U S A Tel 1 619 575 4400 Fax 1 619 575 7185 www us tdk lambda com Ip TDK Lambda UK Ltd Kingsley Avenue Ilfracombe Devon EX 34 8ES United Kingdom Tel 44 1271 856666 Fax 44 1271 864894 E mail powersolutions uk tdk lambda com www uk tdk lambda com
25. he cable type is auto detected by the power supply The serial link cable 0 5 m long provided with the Z power supply cannot be used for a LAN connection 4 2 Types of Networks There are basically two types of networks that are discussed here 1 NETWORK WITH A SERVER This is the typical local area network with a server computer and network administrator to keep it operating The server will download the IP address and other settings to the power supply Hh qg ee Hub a wi with a web browser or CAT 5 program to send SCPI commands Cables Network 2eece Server ee _ Hub Z with LAN Option IP address is assigned by the server using DHCP or the Z may be set for a static IP address Fig 4 1 Server Network Connection Diagram 2 PEER TO PEER NETWORK This is typically the configuration when you connect the Z power supply directly to a computer that is not a network server The power supply will configure its own IP address and other settings CAT 5 Cable Z with LAN Option IP address is assigned using an Auto IP address in the range 169 254 xxx xxx Computer with web page browser or program to send SCPI commands The computer is not connected to any other network Fig 4 2 Peer to Peer Connection Diagram 10 TDK Lambda 4 3 Power up the LAN Power Supply The Z power supply LAN option automatically detects if it is connected or disconnected from a network It will als
26. i ni AR AA 26 9 2 Communicating Using Sockets sessssesssesseeseesserseessesssessesssesseesscoseeserosersseoseossesseesseoseeseeoseessees 26 9 3 Controller Access Single and Multiple Clients se sesesssesseeseessesseessesssesseossesseessesseesecoseessess 26 9 4 Input Buffer Requirements sssesssesssesssesssesssessseesseessessseesseesseeoseeoseeoseeoseesseesseeoseroneeoseeoseeeseeeseee 26 9 5 Message ferminatorS eseseeseseosesessesessesesuesessoscosesossoscoessesesseuessouceroscososcsroscssoscstosestosoneosonessosessesess 27 ON SINCE FEP SOCKETS senna En EAE OSN 27 OF Using UDP SOCKETS sasonaridoursnno nk n ara R A 27 10 CONNECTING OVER WAN 10 1 View Web Pages Over WAN ccsssssssssscsssssssssssscscssssssssssssesesssessssssesesescseseseesesesssessessscseseaceessess 28 10 2 Use Sockets Over WAN ccssssssssscssssssssssssssscsssssssscsssessssssesscassssecsesssesseassesecsssssecscassecseaesssacseasees 28 11 COMMAND SET 11 1 Lan Specific CoMmmMandS sssessssessseessseessseessseesseeesseeesseessseessseeoseresseeesseessseosssrosserosserosseessseosss ross 29 FELE Road imne FOSI E R A R i 29 TLLA Read the IPADO Suusa ER T RE ie 29 TLL Read the MAC AGOTESS aseisiin Nin aie 29 TLIA Reset tne LAN Settings cs ccssctsccavecsstecesasaseacestontiseszecticecstacss vaveeectasunattcnavcitteaestieiateentntetercientnatianatiin 29 Vel le rh Cl Melo VE VT LED ionscusseiedii ni a A an E Uei 29 12 RS 485 MULTI DROP COMMANDS t TIDE OU
27. ich may be used TCP and UDP Each has its own port number as described in section 9 6 and 9 7 9 3 Controller Access Single and Multiple Clients The web page has a security setting to limit or enable the types of connections and numbers of control computers called clients that may be connected at one time NOTE The performance of the Z LAN interface is impacted as more web pages ports and sockets are opened at the same time It is recommended no more than three pages are open at the same time The rules for the One Client Multiple Clients are One Client Only Multiple Clients Web Page Multiple web pages may be open at any time i You may view but not change the power supply operation Web P eb oo If you are logged in any other connections are blocked Logged in as admin VISA Connection Only one VISA port may be opened at any time Multiple connections of TCP and one connection of UDP are allowed to be open at the same time if no VISA or Admin web page is open TCP Socket One TCP socket may be opened if no VISA or admin web page is open UDP sockets are blocked 9 4 Input Buffer Requirements With a controller using TCP or UDP sockets the power supply can receive commands much faster than it can process the commands To make sure the Z LAN is not overloaded it is required that the controller sometimes sends a query and then waits for the response The response is the acknowledgement from Z that
28. in the RS 485 list box settings are saved to default location 1 D Recall this recalls the settings for only the supply selected in the RS 485 list box settings are recalled from default location 1 Programmable DC Power Supplies 200W 400W 600W 800W TDK Lambda output Protection J system Multi Drop RS 485 Address ZPL6 v Refresh list Reset the DC Power Help Reset the instrument selected in RS 485 Slave Address Reset One Instrument Reset all instruments connected to this RS 485 bus Reset All Instruments Save Recall Settings The saved settings are kept until the power supply is turned off 6 5 4 DC Power gt Utility Page This page is used to send any SCPI command and see the response It is a learning tool for SCPI operation and it allows commands which are otherwise not on the web pages Type any SCPI message into the top text box Then click the Send and Read button For commands there is no response For queries the response appears in the middle text box You may read any System Error message by clicking the Read Errors button The error message or No error appears in the bottom text box To read system error first send SYST ERR ENAB 19 TDK Lambda Programmable DC Power Supplies 200W 400W 600W 800W TDK Lambda Multi Drop RS 485 Address ZPL 8 Send and Read Send Custom SCPI Commands Read S
29. ion at a time and to enable UDP socket connections 21 TDK Lambda Apply Click this button to save the new settings Close Click this button to close the window 6 6 3 LAN gt Advanced Page Click the LAN gt Advanced button to view and set four advanced LAN settings Programmable DC Power Supplies E 200W 400W 600W 800W TDK Lambda Present LAN Configuration LAN Timeout 1800 Ping Server ENABLED Auto Negotiate Auto Select Vxi Discovery ENABLED Auto MDIX Yes LAN Timeout If you are logged in this is how many seconds the web pages may be inactive idle before the power supply automatically logs you out The default is 1800 seconds 30 minutes Ping Server Ping is a network utility that allows the computer to verify communication with the LAN power supply This service may be disabled in the Modify panel Auto Negotiate This shows the network speed that the LAN card is allowed to operate at VXI Discovery This is a protocol which allows the network server to detect what instruments are connected to the LAN It may be disabled in the Modify panel for security reasons Auto MDIX This service is always enabled in the power supply The power supply LAN connection will always detect a patch or cross over cable Modify After logging in click this button to open the window shown below 6 6 4 LAN gt Advanced gt Modify Page In the wind
30. ion link The default hostname is derived from the model and serial number see the hostname in section 4 5 and 6 6 2 or it may be changed in the LAN gt Configure gt Modify web page Description By default this is Z Power Supply but it may be changed in the LAN gt Configure gt Modify web page 20 TDK Lambda Controller Access The One Client Only setting is the default setting for the highest networking security This setting allows only one TCP socket to be open at a time and it disables the connectionless UDP sockets See section 6 6 2 Modify Click this button to open the window shown below 6 6 2 LAN gt Configure gt Modify Page If you are logged in and clicked the Modify button on the LAN gt Configure window the below pop up window appears On this window you may enter new values for the LAN settings The available fields depend on the selection of DHCP Assigned AUTO IP or Static IP Changes to these setting will not take place until the Apply button is clicked Programmable DC Power Supplies wg 200W 400W 600W 800W beset i TDK Lambda LAN Modify TCP IP Mode Static IP DHCP Enabled Auto IP IP Address 10 97 4 1 Subnet Mask DC Power Default Gateway DNS Server Hostname Z20 10 010 LOGOUT Description Z Power Supply Controller Access One client only Multiple clients Rep
31. lled All are controlled through one IP address from the supply with the LAN option This is called the Multi drop configuration The Ethernet cable goes to the LAN supply All the other supplies are connected using a RS 485 Serial Link Cable between J4 OUT to J4 IN sockets The multi drop feature adds the ability to operate all the linked power supplies with one global command CAUTION When using multiple LAN controllers with Multi drop only one power supply may be A selected at a time One controller may change the selected address however the others may not be aware that a new address is active RS 485 RS 485 Link Cable Link Cable Ethernet fusour s4 fua out J4in J4 0UT Hub vale Ea eam 5 seese Th art rer ee gt V LAN Option MD Option Up to 30 supplies MD Option in one chain must be different jt RS 485 Addresses 4 IP it RS 485 Add es Server must be different may be as ss OUT J4 IN Y AL OUT J4 IN Es J4 OUT es oe KEFR j T LAN Option MD Option Up to 30 supplies MD paang in one chain Fig 10 1 Configuring a Multi drop System of Supplies 12 2 Configure the LAN Supply The LAN power supply at the head of the multi drop chain is called the Master supply 12 2 1 To Set Up the Master Power Supply Connect the LAN to a computer as described in section 4 Enable the LAN option as described in Section 3 1 3 Connect a RS 485 Link cable from the rear J4 OUT jack to the next s
32. ly NOTE After changing the LAN settings the web browser will ask to be closed Re open using the new address If the change causes a duplicate IP the LAN Status LED and the front panel LED will blink and address will revert to previous state Press any front panel button to stop the blinking NOTE It may be required to AC reset the power supply after changing the LAN settings TCP IP Mode This selects how the power supply receives network settings Select either e DHCP Assigned AUTO IP If this mode is selected the network server uses DHCP to assign the IP address subnet mask default gateway and DNS server Since the server assigns these they are disabled gray on the web page If the server cannot make the assignment the power supply will revert to the Auto IP method described in section 4 4 In this mode the user may only change the hostname and description e Static IP If this mode is selected the IP address subnet mask and default gateway must be entered in the window fields The settings must be compatible with the requirements of the network server These settings do not change as the power supply is moved to different LAN connections In this mode there is no hostname connectivity so the hostname and DNS server fields are disabled gray Controller Access Select the security feature for One Controller Only or Multiple Clients The multiple clients setting is needed to allow more than one controller connect
33. ming Using SCPI Commands 12 4 1 Selecting One Power Supply in a Multi drop Chain All the SCPI commands may be sent to any one of the supplies in an RS 485 chain by first sending the INST nSEL address command All commands and queries will then apply only to the selected supply until a new INST nSEL is sent At power up the LAN master supply is automatically the one selected After sending INST nSEL it is recommended that you verify the command by sending INST nSEL or SYST ERR otherwise further commands may go to the wrong power supply 12 4 2 Global Commands in a Multi drop Chain The GLOBAL commands affect all of the chained supplies at the same time including the LAN supply e There is no SYSTEM ERROR response message if one or more supplies cannot execute a global command e tis required that the user s application adds a 20 millisecond delay after initiating a global command and before sending any other messages This is because there is no feedback from the multi drop chain to indicate the command is suntil being processed e There is no query version of these commands Global settings must be queried by selecting one power supply and reading it s setting e The error and status registers operate differently e The global commands are not SCPI compliant The global commands do not affect which power supply has been selected using the INST nSEL command For example if the following commands are sent INST nSEL 4
34. n When the power supply is in remote mode the front panel REM LED is ON The power supply may be returned to local mode by pressing and releasing the REM button If the REM button will not go into local mode then e The LAN is being used to change settings the power supply will automatically go to remote with every command Stop the LAN program and then press the REM button e The LAN computer may have sent a Local Lockout command Use the LAN to send SYSTem REMote STAte refer to Z supply User Manual or turn the power supply AC off and on again and then press the REM button 3 1 2 Select Serial RS 232 amp RS 485 Remote Mode The serial RS 232 amp RS 485 remote control may be selected even if the LAN option is installed To select the RS 232 amp RS 485 mode 1 Press REM button on the front panel 2 Voltage Display will show INtF Press the Voltage encoder 3 Rotate the Current encoder to select 232 or 485 and then press the Current encoder 3 1 3 Select LAN Remote Mode Selecting the LAN mode will allow programming over the Ethernet cable Any settings and measurements may be done from a remote computer using the power supply s built in web pages or using SCPI programming To select the LAN mode 1 Press REM button on the front panel 2 Voltage Display will show INtF Press the Voltage encoder 3 Rotate Current encoder to select LAn and then press the curre
35. nicate LAN HOST Example SYST COMM LAN HOST Response The hostname string up to 16 characters long Example Z10 40 123 is a typical default hostname 11 1 2 Read the IP Address The IP address may be read with this query Syntax SYSTem COMMunicate LAN IP Example SYST COMM LAN IP Response The IP address string up to 15 characters long Example 169 254 9 35 is a typical default IP address 11 1 3 Read the MAC Address The MAC address may be read with this query Syntax SYSTem COMMunicate LAN MAC Example SYST COMM LAN MAC Response The MAC address string 17 characters long Example 00 19 9 00 24 3bis a typical default Mac address 11 1 4 Reset the LAN Settings WARNING Sending this command could disable the LAN connection to the power supply It may be required to AC reset the power supply This command will reset the LAN settings to the factory default state The effect of this command includes changing the IP address and hostname so LAN communication could be lost Therefore only use this command as a diagnostic tool Syntax SYSTem COMMunicate LAN RESet Example SYST COMM LAN RES 11 1 5 Blinking the Identity LED Syntax SYSTem COMMunicate LAN IDLED 1 ON 0 OFF Example SYSTem COMMunicate LAN IDLED 1 29 TDK Lambda 12 RS 485 MULTI DROP COMMANDS 12 1 Introduction The Z power supply LAN option allows you to control up to 30 other supplies which do not have the LAN option insta
36. nt encoder TDK Lambda LAN Option Rear Panel View The power supply rear panel with the LAN option installed is shown below er FNVLNO tr N L lof e 1o iS Ht 100 240V Fig 3 1 Rear Panel LAN Features 1 Link LED 2 Activity LED 3 RJ 45 Socket 4 LAN Status LEDS 3 1 4 Link LED LED embedded in the RJ 45 socket glows green when the connection is made to an active network 3 1 5 Activity LED Amber LED blinks when any message packets are detected 3 1 6 LAN Status LED There are two LED s at the bottom of the RJ 45 connector e Normal Operation Steady green The power supply has an active LAN connection e Device Identify Blinking green The identify function is turned on from a remote computer using the web page or a SCPI command The front panel blinks along with the rear It is used to identify one power supply in a rack of instruments The blinking is turned off by the web page by sending another SCPI command or by changing any front panel control In a multi drop chain only the master LAN supply blinks e LAN Fault Steady red Shows the LAN mode is not enabled the LAN connection was never made or that the LAN connection was made and then broken TDK Lambda 4 CONNECT TO NETWORK 4 1 LAN Cable The LAN cable must be supplied by the customer It may be a standard straight patch CAT 5 or better network cable or it may be a crossover cable where the pins are reversed on one end T
37. o automatically look for a network server and it will retrieve or create an IP address It will also broadcast its IP address and hostname to all other devices on the network 1 Turn ON the power supply AC power Lan appears for about 2 seconds on the front panel display Then OFF or the last output settings will appear on the front panel display 2 The LAN cable may be connected before or after the power supply is switched on 3 Foraserver network wait about 10 seconds The rear panel LAN Status LED turns green 4 Fora peer to peer network wait about 30 seconds The rear panel LAN Status LED turns green When the LAN Status LED turns green the power supply receives the IP address It can be viewed on the front panel See section 5 1 If the LAN Status LED does not turn green refer to section 13 for troubleshooting steps 4 4 IP Addresses The simplest and most reliable way to open a network connection is via power supply s IP address which is represented by group of four numbers separated by periods for example 10 1 15 123 This IP address may be viewed from the front panel see section 5 1 Three modes in which the power supply can access an IP address is shown below May be set in the LAN Modify Default after LAN Reset if no web page see section 6 6 2 or Mode Select DHCP is default after LAN Reset l by setting the IP1 4 address on DHCP server is used the front panel see section 5 2
38. ow below you may enter new values for the LAN settings Changes to these setting will take place when the Apply button is clicked 22 TDK Lambda Programmable DC Power Supplies E 200W 400W 600W 800W TDK Lambda DC Power LAN Modify LAN Timeout 1800 Seconds Ping Server Enable Disable Auto Negotiate Auto select v VXI 11 Discovery Enable Disable LOGOUT 6 6 5 LAN gt Users Page This page allows you to create password protection for the web pages There is no password protection for automation programming with VISA or sockets By default the old password is blank The new password must be four or more characters long Special Characters and spaces not allowed Reset the password Once a password is applied it may be changed by using the same screen but it can only be removed by performing the LAN Reset function from the power supply front panel or SCPI command Programmable DC Power Supplies 200W 400W 600W 800W TDK Lambda Configure Users Change Password Enter old password Enter new password Retype new password LOGOUT 6 7 HELP Page A Help tab is available This page is a set of Internet links to TDK Lambda s website pages gt Series i Programmable DC Power Supplies A 200W 400W 600W 800W TDK Lambd DC Power View the Lambda Home Page Z User Manual Download dri
39. programming functions M Uses SCPI command language an instrumentation standard N Compatible with VISA drivers and all the test amp measurement utilities O TCP and UDP sockets will support PLCs Linux and other non VISA controllers e Front Panel features P View IP and MAC address on front panel Q Set the complete IP address on front panel R LAN Reset on front panel S User may remotely Blink the front panel to locate a power supply in a rack e Rear Panel features T Ethernet RJ 45 connector standard 8 pin phone jack for LAN U Link and Activity LED on RJ 45 connector V LAN Status LED shows LAN fault and is a 2 Blink Identify on rear panel e RS 485 Multi drop Chain W Allows connecting up to 30 power supplies using simple Link cable X One LAN IP address shared by all RS 485 power supplies Y The LAN option is not needed in RS 485 power supplies ASCrrt i Trademark Notices Microsoft and Windows are trademarks of Microsoft Corporation TDK Lambda 2 SPECIFICATIONS 2 1 Power Supply Specifications When using the LAN the power supply ratings and accuracies are the same as for the digital remote programming using RS 232 or RS 485 Refer to the Z Power Supply User Manual for the specifications 2 2 LAN Specifications ELECTRICAL Ethernet Auto MDIX Auto Negotiate NETWORK CONFIGURATION MAC Address IP Address DHCP Auto IP Static IP Hostname Duplicate IP Detection Subnet Mask Default Gateway DNS Serv
40. rallel INDICATORS IP and MAC Address Multi drop Address Link LED Activity LED LAN Status LED Blink Identify Local Remote LED SWITCHES ENCODERS LAN Reset IP Address Multi drop Address LAN RS Select Web Page Password Single Client Only Block UDP Sockets Disable VXI 11 Discovery Disable Ping Server Multiple web pages can be open at the same time Identify power supply model serial number revision etc View and set LAN configuration Program and read output settings Send SCPI commands read errors Link to TDK Lambda web sites Supply may be run from front panel even if LAN is monitoring Supply may be controlled and monitored through LAN LAN must be disabled to use the standard RS 232 485 ports LAN may monitor supply while analog controller sets output Rules for standard Z supplies apply to LAN supplies Rules for standard Z supplies apply to LAN supplies View addresses on front panel View RS 485 address on front panel Indicates that the Ethernet cable is connected at both ends Indicates when LAN packets are detected Red green indicates power supply has valid IP connection Find the supply by remotely blinking front and rear LEDs Indicates if LAN has control of supply output Reset LAN settings from front panel Change entire IP address from front panel Change RS 485 address from front panel Disable LAN to enable RS 232 485 or Multi drop slave Can set password to prevent unauthorized or accidental chan
41. sssnsssssecesssssssssssssessessessssesssssssen 8 3 1 3 Select LAN Remote MOE cccsssssssesssssessssecsesssseesssssnsesssscessssesansssssesesseceesssseesssssnsesssscesessessesssssesesscseesssseesessae 8 AEDE I E E E A IA E EA A AA AET AAAA E AEE 9 APEE A A A E E O PETE AT AE ANE E A 9 DOMAIN LS E D E E E E A A AE A A A 9 4 CONNECT TO NETWORK ACAN CA MIG e E AN E EAA O A E E E E EAE 10 4 2 Types of Networks sseessseessseesssersseeesseessseessseessecesseeesseessseessseessecossecesseessseossseosserosserosseessseossseesseee 10 4 3 Power up the LAN Power Supply ss sssesssesssesssesssesssesssesssesssesssesssesssessseossessseosseosseosseesseesseesseess 11 AAP AdAS O nne EA ETE TE 11 AAO T E e E EN N cee pcs AA 12 5 LAN SETUP 5 1 View the IP and MAC Addr esse scsssssscsssssecscssssssssssssecsssssesessssesscsssssesessssesscassesecassesecseasseees 13 5 2 Change the IP Address sssssssssssssssssssesssssscsessssssssseesssssessssescsesesesssssseseseacsesessesesesessseeseseseseeces 13 5 3 WIN PO SG te hctcehcxea costed encatpe a E E etadoten caus bi E E E 13 6 WEB PAGES VRS TM of Web TS sac ccsezcsensecests cess aseivasssessssunseessuesdintacon eectiseaniaieacamtoneineeen enero 15 6 2 Opening the HOME Page ii cvtescucsetincanssisiseninessrsonteraiasserarstsisssssavars tees ebbateactselactielnistcwsantdbeontiavinds 15 63 De OE a es cashes esses teases rn ae EA E E R 16 0A Login RUIG a N E E EA artes O 17 oa DC FOWE PAD E irar E E S AS EEE
42. tion 5 3 The power supply will try to get an address from a network DHCP server or it will create its own address in the 169 254 xxx xxx subnet If this subnet is not the one you are using then use the front panel to set an IP address that is compatible with your network see section 5 2 ii Disconnect any LAN device that may have a conflicting address from the network Switch the power supply off and on After 10 seconds the power supply will acquire its Static address Cannot Communicate with the Power Supply Ifthe LAN Status LED is green and the front panel shows a valid IP address but you still cannot open a web page VISA or socket connection then try pinging the power supply The ping utility verifies the computer can send a message and get a response from the power supply over the network On a Windows XP computer open a command line window by A Click the Start button Select Run B A Run window opens Type cmd lt Enter gt See the command window open C Type ping lt IP address gt IP from the supply front panel see section 5 1 Verify the ping packets had successful responses If the ping does not get responses from the power supply then there is a mismatch between the power supply and the computer LAN settings Also the ping function may be disabled in the power supply see section 6 6 3 In this case do a power supply LAN Reset see section 5 3 and try to connect again
43. upply s J4 IN Switch AC power on the supply Set the supply s RS 485 address as described below 2 2 2 To Set the RS 485 Address In addition to the supply s IP address the multi drop requires setting an RS 485 address It is viewed on the front panel of the power supply by setting it to local mode 1 Press REM button on the front panel 2 Adr will be seen on the current display Press the current encoder 3 Move the current encoder to select the address and then press current encoder again The default RS 485 address is 6 It may be set to any value from 1 to 31 The RS 485 address is not related to the IP address However it is required that no other power supply on the multi drop chain will have the same RS 485 address OM _ M 30 TDK Lambda 12 3 Connect and Configure the RS 485 Supplies The RS 485 linked power supplies are called the Slave supplies They may be individually commanded and queried using the LAN port on the Master supply 12 3 1 To Set Up an RS 485 Chain Set the supply into RS 485 mode as described in section 3 1 2 Connect the RS 485 Link Cables from the master s J4 OUT to the slave s J4 IN Power up the supplies Set the supply s RS 485 address as described in section 12 2 2 Press REM button Move Voltage encoder until baud appears on the display Press the Voltage encoder Then rotate Current encoder to 57 6 and press Current encoder to select mon 12 4 Multi drop Program
44. vers and sample programs NOTE After changing the LAN settings the web browser will ask to be closed NOTE It may be required to reset power supply after changing the LAN settings 23 TDK Lambda 7 PROGRAMMING USING VISA DRIVERS 7 1 VISA Description In the test and measurement industry Virtual Instrument Software Architecture VISA is a popular framework that includes hardware drivers configuration utilities and connection managers A variety of communication busses are supported VISA drivers are available from several instrument vendors Any programming language that supports Windows COM or DLL libraries can call the VISA functions 7 2 VXI 11 Compatibility VXI 11 is a protocol that allows communications between a computer port and an instrument VISA is built upon the VXI 11 specification The Z power supply is compatible with the VXI 11 protocols e VXI 11 Device_link Open link to instrument e VXI 11 Device_write Write text to the instrument e VXI 11 Device_read Read text from an instrument e VXI 11 Destroy_link Close link to instrument 7 3 Opening the VISA Connection Test and automation programs may easily be written if they use the VISA libraries The supported VISA functions include Open Read Write and Close A VISA resource descriptor is used to describe a particular supply For a Z LAN power supply the descriptors are found on the supply s Home web page The VISA resource may use the supply s IP
45. wer supply is set for DHCP Auto IP and if the NetBIOS naming service is running on the computer See Section 4 5 for a description of the hostname Home Windows Internet Explorer go E htp z20 10 010 w Home The power supply Home page will appear If it does not refer to section 13 Troubleshooting 15 TDK Lambda 6 3 The HOME Page The following page appears when the web page is first opened or when it is refreshed Series we r Programmable DC Power Supplies 200W 400W 600W 800W TDK Lambda Welcome Lambda Model Z160 2 6 LAN DC Power IP Address 10 97 4 93 Serial Number 423A259 0001 Description Z Power Supply Maximum Output Ratings Firmware Hostname Z160 2P6 001 Auto MDIX Yes a Auto Negotiate Auto select Manufacturer TDK LAMBDA MAC Address 00 19 F9 18 01 F0 160 V 26A 416W Revision Z 2 110 LAN 1 004 VISA Name using 3 J IP Address TCPIP 10 97 4 93 INSTR VISA Name using TCPIP Z160 2P6 Hostname 001 INSTR RS 485 Address 6 Fig 6 1 Web HOME Page VISA Name Using IP Address For automation programming VISA is a type of communication driver For LAN instruments the IP address may be used in the VISA resource descriptor See section 4 4 VISA Name Using Hostname For automation programming an alternate VISA resource descriptor using the power supply hostname Refer section 4 5 RS 485 Address
46. ystem Errors 1 6 6 LAN Page When the LAN tab is clicked the following web page opens This page and its sub pages allow you to view and configure the power supply s LAN settings Programmable DC Power Supplies 200W 400W 600W 800W TDK Lambda Present LAN Configuration Home DC Power IP Address Source DHCP Auto IP IP Address 10 97 41 Help Subnet Mask 255 255 0 0 Default Gateway 10 97 1 2 LOGOUT DNS Server 10 97 2244 Hostname Z20 10 010 Description Z Power Supply Controller Access One Client Only 6 6 1 LAN gt Configure Page When the LAN tab is selected the Configure panel opens The following settings are shown on the LAN gt Configure web page IP Address Source Displays the way the IP address was selected Options are DHCP Auto IP and Static IP IP Address Displays the IP address assigned to the power supply through either DHCP Auto IP or Static IP sources Subnet Mask Displays the subnet mask assigned to the power supply through either DHCP Auto IP or Static IP Default Gateway Address of the network router to allow the power supply to communicate outside of the local subnet DNS Server Address of the server running the Domain Naming Service This is used for hostname addressing Hostname The power supply hostname may be used instead of the IP address to create a communicat

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