TDK-Lambda Genesys Series User manual

Optional Interface:
Compliant LAN

Applies To:
This document applies to LAN cards with a firmware
revision that ends in: LAN:2.1 Onwards This version adds TCP and UDP sockets.
NOTE:
Sections 6.5, 6.5.1, 6.5.2, 6.5.3, 6.5.4 and 6.5.5 are not compatible with web browsers
using Java Plug-In version 7 update 51 and above.
USER MANUAL FOR
LAN Interface
GENESYS™ POWER SUPPLIES
Manual Supplement
Refer to the Genesys™ Technical Manual for information on installing the power supply, safety requirements,
specifications, operating the front panel, using the serial (RS-232/485) programming and the analog (J1)
programming .
IA672-04-01-Rev. H

3

Table of Contents
1. GENERAL INFORMA TION................................................................................................................................. 6
1.1. Introduction ........................................................................................................................................................................... 6
1.2. Feature Summary ................................................................................................................................................................ 7
2. SPECIFICATIONS................................................................................................................................................. 8
2.1. Power Supply Specifications............................................................................................................................................ 8
2.2. LAN Specifications .............................................................................................................................................................. 8
2.3. LAN Command Speed .....................................................................................................................................................10
3. SELECT THE CONTROL METHOD .................................................................................................................. 11
3.1. A Variety of Control Methods ........................................................................................................................................ 11
3.2. LAN, Local, or Serial .......................................................................................................................................................... 11
3.3. LAN Option Rear Panel View......................................................................................................................................... 12
4. CONNECT TO NETWORK ................................................................................................................................ 14
4.1. LAN Cable ............................................................................................................................................................................. 14
4.2. Types of Networks............................................................................................................................................................. 14
4.3. Power-up the LAN Power Supply................................................................................................................................. 15
4.4. IP Addresses......................................................................................................................................................................... 15
4.5. Hostnames........................................................................................................................................................................... 16
5. LAN SETUP ........................................................................................................................................................ 17
5.1. View the IP and MAC Addresses ................................................................................................................................... 17
5.2. Change the IP Address..................................................................................................................................................... 18
5.3. LAN Reset ............................................................................................................................................................................. 19
6. WEB PAGES .......................................................................................................................................................20
6.1. Benefit of Web Pages........................................................................................................................................................20
6.2. Opening the HOME Page ...............................................................................................................................................20
6.3. The HOME Page .................................................................................................................................................................21
6.4. Logging In............................................................................................................................................................................22
6.5. DC Power Page...................................................................................................................................................................23
6.6. LAN Page..............................................................................................................................................................................26
6.7. HELP Page.............................................................................................................................................................................30
7. PROGRAMMING USING VISA DRIVERS ........................................................................................................ 31
7.1. VISA Description ................................................................................................................................................................. 31
7.2. VXI-11 Compatibility ......................................................................................................................................................... 31
7.3. Opening the VISA Connection ...................................................................................................................................... 31
7.4. Communicating Using VISA ........................................................................................................................................... 31
8. PROGRAMMING USING IVI DRIVERS............................................................................................................32
8.1. IVI Description.....................................................................................................................................................................32
8.2. IVI Support...........................................................................................................................................................................32
9. PROGRAMMING USING SOCKETS.................................................................................................................33
9.1. Socket Description.............................................................................................................................................................33
9.2. Communicating Using Sockets.....................................................................................................................................33
9.3. Special Requirements for Socket Programs .............................................................................................................33
9.4. Controller Access: Single and Multiple Clients ........................................................................................................33
9.5. Input Buffer Requirements.............................................................................................................................................34
9.6. Message Terminators .......................................................................................................................................................34
9.7. Using TCP Sockets..............................................................................................................................................................35
9.8. Using UDP Sockets............................................................................................................................................................35
9.9. Other Ports ...........................................................................................................................................................................35
4

10. CONNECTING OVER WAN .............................................................................................................................................. 36
10.1. View Web Pages Over WAN ..............................................................................................................................................................36
10.2. Use Sockets Over WAN...................................................................................................................................................................... 36
11. SCPI COMMAND REFERENCE......................................................................................................................................... 37
11.1. Command Syntax..................................................................................................................................................................................37
11.2. Configuring the Output.................................................................................................................................................................... 38
11.3. Measuring the Output........................................................................................................................................................................39
11.4. Operating Modes..................................................................................................................................................................................39
11.5. Output Protection................................................................................................................................................................................41
11.6. LAN Specific Commands ...................................................................................................................................................................42
11.7. Common Commands ..........................................................................................................................................................................44
11.8. Error and Status Commands.............................................................................................................................................................45
12. RS-485 MULTI-DROP COMMANDS............................................................................................................................... 54
12.1. Introduction............................................................................................................................................................................................54
12.2. Configure the LAN Supply................................................................................................................................................................54
12.3. Connect and Configure the RS-485 Supplies ............................................................................................................................55
12.4. Multi-drop Programming Using SCPI Commands ...................................................................................................................55
13. SYSTEM:ERROR? MESSAGES.......................................................................................................................................... 58
14. SAMPLE PROGRAMS.......................................................................................................................................................60
14.1. Web Downloads....................................................................................................................................................................................60
14.2. Customer Support ...............................................................................................................................................................................60
15. TROUBLESHOOTING....................................................................................................................................................... 61
15.1. Cannot See the IP Address, LAN Status LED Stays Red ...........................................................................................................61
15.2. IP Address is All Zeroes, LAN Status LED Stays Red..................................................................................................................61
15.3. IP Address is Three Zeroes and a Number ..................................................................................................................................61
15.4. Cannot Communicate to the Power Supply...............................................................................................................................61
15.5. Cannot View Web Pages Over a Peer-to-Peer Network.........................................................................................................62
15.6. Cannot Open Web using Laptop or Dual-LAN Card Computer..........................................................................................62
15.7. Web Page Fields Show as Little Blocks .........................................................................................................................................62
15.8. Web Page “Refresh List” Does Not Find Slave Supplies .........................................................................................................63
15.9. Cannot Connect Using Hostname..................................................................................................................................................63
15.10. Web Page “Modify Settings” Does Not Work...........................................................................................................................64
16. GLOSSARY......................................................................................................................................................................... 65
Table of Figures
Figure 1. Front Panel LAN Features............................................................................................................................................................6
Figure 2. Rear Panel LAN Features .............................................................................................................................................................6
Figure 3. Rear Panel LAN Features............................................................................................................................................................12
Figure 4. Server Network Connection Diagram..................................................................................................................................14
Figure 5. Peer-to-Peer Connection Diagram ........................................................................................................................................14
Figure 6. Web HOME Page ..........................................................................................................................................................................21
Figure 7. Error and Status Registers..........................................................................................................................................................48
Figure 8. Configuring a Multi-drop System of Supplies.................................................................................................................. 54
5

1. GENERAL INFORMATION
1.1. Introduction
The Local Area Network (LAN) option for the Genesys™ series power supply allows the user to remotely
program, measure and check status of the power supply. It uses an Ethernet connection like those used
to connect computers to each other and to the Internet A computer’s web page browser may be used
to operate the power supply through a built-in web page server. For applications including factory and
test automation, communication may be done using several standard network protocols and instrument
commands Refer to the Genesys™ Technical 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 the analog (J1) programming
Figure 1. Front Panel LAN Features
Figure 2. Rear Panel LAN Features
6

1.2. Feature Summary
• Communicate over any standard TCP/IP network
a. LAN (Local Area Network)
b. WAN (Wide Area Network)
c. Communicate across the world using the Internet
• 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
• LAN Protocols
h. VISA drivers, TCP and UDP sockets are supported.
i. VXI-11 Discovery and ping server are supported
• Class C
j. Conforms to LXI standards (revision 1.1) for network configuration
k. A “LAN Status” indicator shows when the network connection is established
l. IVI-COM and IVI-C drivers are available for download
m. Easily write custom automation programs
• Full remote programming functions
n. Uses SCPI command language, an instrumentation standard
o. Compatible with VISA drivers an all the test & measurement utilities
p. TCP and UDP sockets will support PLCs, Linux and other non-VISA controllers
• Front Panel features
q. View IP and MAC address on front panel
r. Set the complete IP address on front panel
u. Ethernet RJ-45 connector (standard 8-pin phone jack for LAN)
v. Link and Activity LED on RJ-45 connector
w. LAN Status LED shows LAN fault and is a 2nd “Blink Identify” on rear panel
x. A switch disables the LAN to allow use as an RS-485 Multi-drop slave
• RS-485 Multi-drop Chain
y. Allows connecting up to 30 power supplies using simple Link cable
z. One LAN IP address shared by all RS-485 power supplies
aa. The LAN option is not needed in the RS-485 power supplies, but they must be Multi-drop enabled
Trademark Notices
LXI is a trademark of the LXI Consortium Inc.
Microsoft and Windows are trademarks of Microsoft Corporation.
7

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 programm
ing using RS-232 or RS-485. See the Technical Manual for Genesys™ Power Supply for those specifications.
2.2. LAN Specifications
ELECTRICAL
Ethernet Meets IEEE 802.3u specifications
Auto-MDIX Accepts patch or cross-over cable connection
Auto-Negotiate Selects fastest of 10Base-T or 100Base-T networks (10 or 100 Megabits per second)
NETWORK CONFIGURATION
MAC Address TDK-Lambda assigned: 00:19:f9:xx:xx:xx
IP Address View or set (with restrictions) from front panel
DHCP Get address from network server. Leasing services
Auto-IP Create own IP address: 169.254.xx.xx
Static IP Any IP fixed by operator
Hostname NetBIOS, ARP and rARP protocols. Operator settable name
Duplicate IP Detection Reject duplicate setting or disconnect from network
Subnet Mask Mask set by DHCP or static
Default Gateway Address set by DHCP or static
DNS Server Address set by DHCP
LAN Reset Reset configuration from front panel or SCPI command
LAN PROTOCOLS
TCP LAN packets follow Transmission Control Protocol
IPv4 Internet Protocol version 4
Instrument Protocols
V XI -11 Supports Core channel, not Abort or Interrupt channels
V IS A V XI -11 compliant, uses RPC and Portmapper, SCPI cmds
TCP Sockets Send SCPI commands to port 8003
UDP Sockets Send SCPI commands to port 8005
VXI-11 Discovery Find connected instruments
SNMP Ping Server Verify LAN connection to instrument
HTTP Web page serverwith Java scripts and applets
COMMANDS
SCPI SCPI 1999 compliant command, measure and status
IEEE-488.2 Condition and event register tree
Serial Pass-Through Send native RS-232 commands with abilities beyond SCPI
WEB PAGES
Multiple users Multiple web pages can be open at once
Identity Identify power supply model, serial number, revision etc.
LAN Configuration View and set LAN configuration
Active Control GUI Program and read output settings
Send Commands Send SCPI commands, read errors
Help Link to TDK-Lambda web sites
8

SUPPLY CONFIGURATIONS
Local Control Supply may be run from front panel even if LAN is monitoring
LAN Remote Control Supply may be controlled and monitored through LAN
RS-232/485 Control LAN may be disabled to use the standard RS-232/485 ports
‘J1’ Analog Control LAN may monitor supply while analog controller sets output
Series / Parallel Supplies Rules for standard Genesys supplies apply to LAN supplies
Advanced Parallel Rules for standard Genesys supplies apply to LAN supplies
INDICATORS
IP and MAC Address View addresses on front panel
Multi-drop Address View RS-485 address on front panel
Link LED Indicates the Ethernet cable connected at both ends
Activity LED Indicates when LAN packets detected
LAN Status LED Red/green, indicates power supply has valid IP connection
Blink Identify Find the supply by remotely blinking front and rear LEDs
Local/Remote LED Indicates if LAN has control of supply output
BUTTONS, SWITCHES
LAN Reset Front panel button
IP Address Change entire IP address on front panel
Multi-drop Address Change RS-485 address on front panel
LAN/ RS Select Disable LAN to enable RS-232/485 or Multi-drop slave
SECURITY
Web Page Password Can set password to prevent unauthorized or accidental changes to LAN
settings
or power supply output settings.
Single Client Only Set to prevent multiple programs from taking control
Block UDP Sockets Single client will block attacks through UDP sockets
Disable VXI-11 Discovery Stop intruders from finding the power supply
Disable Ping Server Stop intruders from finding the power supply
COMPLIANCE
LXI Certified for LXI (rev 1.1) class C instrument
UL, IEC, TUV, Conformances that are granted to basic power supply also apply to power
supply with LAN installed
CE, ROHS etc
9

2.3. LAN Command Speed
The following communication speeds are typical values only. In addition to the variability in the Genesys™
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 Speed
Commands and queries sent using VISA drivers generally take 10 mSec longer than the same message
sent using TCP sockets (in table below)
UDP Sockets Speed
Commands and queries sent using UDP sockets generally are 5 mSec faster than the same message sent
using TCP sockets (in table below)
TCP Sockets Speed
Typical Command or query speeds:
Most Commands and Queries ~ 85 mSec
This includes all commands not listed below:
:VOLT n.n n :VOLT?
M E AS:VOLT?
OUTP:STAT 1 OUTP:STAT?
VOLT:LIM:LOW n.nn VOLT:LIM:LOW?
SOUR:MOD?
System Queries ~ 30 mSec
Examples:
SYST:ERR? INST:SEL?
*ESR?
Status Register Queries ~ 60 mSec
Examples include:
STAT:QUES:COND?
STAT:OPER:COND?
Instrument Select for Multi-drop ~ 230 mSec
Example:
INST:SEL nn
Identity Query ~ 260 mSec
Example:
*IDN?
10

3. SELECT THE CONTROL METHOD
3.1. A Variety of Control Methods
The Genesys™ power supply with LAN is very flexible. In addition to the LAN, there are other ways the
supply can be used.
See the Technical Manual for Genesys™ Power Supply for more details on the local (front panel), serial (RS-
232/485), or analog (J1) control.
3.2. LAN, Local, or Serial
The power supply, with the LAN option installed, may be operated through four interfaces. This section
describes how to enable each.
3.2.1. Select Local (Front Panel) Mode
The supply may be operated in the local, or front panel, mode even when a computer is using the LAN
connection
If the supply is in remote mode, the front panel “REM/LOC” LED is ON.
The supply may be returned to local by pressing and releasing the “REM/LOC” button
If the “REM/LOC” button will not go into local mode, then:
- If the LAN is being used to change settings, the supply will automatically go to remote with every
command. Stop the LAN program and then press “REM/LOC” button.
- The LAN computer may have sent a Local Lockout command. Use the LAN to send “SYST:SET LOC” (see
section 11.4.2) or turn the supply AC off and on and then press the “REM/LOC” button.
3.2.2. Select RS-232 & RS-485 (Serial) Remote Mode
The serial (RS-232 & RS-485) remote control may be selected even if the LAN option is
installed. The serial remote is described in the Technical Manual for the Genesys™ Power
Supply. The LAN has similar capabilities as the serial remote, but the LAN SCPI
programming language is not compatible with the serial language
To select the RS-232 & RS-485 mode:
A. Switch the supply AC power off
B. Set the LAN card switch pin1 to DOWN (see Figure 3)
C. For RS-232, set rear-panel SW1 pin 6 to DOWN. For RS-485, set SW1 pin 6 to UP
D. Switch the supply AC power on. The front panel will not show “Lan” at startup
MODE MODE DESCRIPTION
1LAN Control using an Ethernet connection LAN will disable the J3-IN serial port
2Local Control using the front panel encoders and
buttons
LAN can be used to measure and read
while in local mode
3Serial Control using RS-232 and RS-485 through the
J3-IN and J3-OUT connectors
Serial will disable the LAN port
4Analog Control using an analog signals to the 25-pin
‘J1’ connector
LAN, local or serial may still be used to
measure and set protections
11

3.2.3. 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:
A. Switch the supply AC power off
B. Set the LAN card switch pin1 to UP (see Figure 3)
C. Switch the supply AC power on. The front panel will show “Lan” at startup
3.3. LAN Option Rear Panel View
The power supply rear panel, with the LAN option installed, is shown below.
Figure 3. Rear Panel LAN Features
3.3.1. LAN Enable Switch:
This two-pole DIP switch allows you to select the LAN or the RS-232/485 mode. The switch on the left is
the only one used.
The supply’s AC power must be OFF to change this switch. The change is only detected during the
supply’s power-up sequence
- SWITCH UP: select the LAN mode. The power supply shows “Lan” at power-up. The rear panel J3-IN port
for RS-232/485 does not operate. The J3-OUT port may be used to start a multi-drop chain of supplies
(see section 12)
When using the LAN, always set the supply to RS-232 mode by setting rear panel SW6 bit 6 to
DOWN. See section 12.2 for details
- SWITCH DOWN: select the RS-232/485 mode. The power supply does not show “Lan” at power-up.
The rear panel J3 ports for RS-232 and RS-485 do operate. The power supply may be used in a chain of
multi-drop supplies (see section 12). See the Technical Manual for the Genesys™ Power Supply for the
description of the RS-232/485 mode
12

3.3.2. Link and Activity LED: this small LED, embedded in the RJ-45 socket, glows green when the connection
is made to an active network and it blinks when any message packets are detected
3.3.3. Collision LED: this small LED, embedded in the RJ-45 socket, blinks amber when the LAN packets are
corrupted by collisions
3.3.4. LAN Status LED: This is a two-color LED to the left of the RJ-45 connector. It shows:
• Normal Operation: Steady green. The power supply has an active LAN connection.
• 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 multi-drop chain, only the master LAN supply blinks.
• 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.
13

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. The cable type is
auto-detected by the power supply.
The serial link cable (0.5 m long) provided with the Genesys™ 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 running. The server will download the IP address and other settings to the power supply
Figure 4. Server Network Connection Diagram
2. PEER-TO-PEER NETWORK: this is typically the situation when you connect the Genesys™ supply directly to
a computer that is not a network server. The power supply will configure its own IP address and other settings
Figure 5. Peer-to-Peer Connection Diagram
14

4.3. Power-up the LAN Power Supply
The Genesys™ power supply LAN option will automatically detect if it is connected or disconnected from
a network. It will also automatically look for a network server and it will get or create an IP address. It will
also broadcast its IP address and hostname to all other devices on the network.
1. Before turning the power supply ON, verify it is set to enable LAN. See the switch setting in section 3.3.1
2. Turn ON the power supply AC power. See the front panel show “Lan” for about 3 seconds. After that,
the supply will show “OFF” or the last output settings
3. The LAN cable may be connected before or after the supply is switched on
4. For a server network, wait about 15 seconds.
See the rear panel LAN Status LED turns green.
5. For a peer-to-peer network, wait about 40 seconds.
See the rear panel LAN Status LED turns green.
The computer screen may show a LAN notification bubble, “This connection has limited or no connectivity.”
When the LAN Status LED turns green, the power supply IP address will change from all zeroes to a valid
address.
It can be viewed on the front panel (see section 5.1).
If the LAN Status LED does not turn green, see section 15 for troubleshooting steps.
4.4. IP Addresses
The simplest and most reliable way to open a network connection is with the power supply’s IP address.
This is a group of four numbers separated by periods (for example: 10.1.15.123).
This IP address may be viewed from it’s front panel (see section 5.1)
There are three modes which the power supply can get an IP address, as show in this table:
IP Address DHCP Auto-IP Static IP
Mode Select DHCPisdefaultafter “LAN
Reset”
Default after “LAN Reset”
if no DHCP server is used
May be set in the “LAN
Modify” web page (see
6.6.2) or by setting the
IP-4 address on the front
panel (see 5.2)
Assignment Assigned by
the
Assigned by the network
server
Assigned by the power
supply
Assigned in the “LAN
Modify” web page (see
6.6.2) or by setting the
IP-4 address on the front
panel (see 5.2)
Range Any address 169.254.xxx.xxx Any address
Lifetime Address may change as
the DHCP server assigns
addresses dynamically to
many instruments
Fixed for the power
supply, except if an
address collision is
detected
Always fixed for the
power supply
Duplicate
Addresses
The DHCP server should
prevent duplicate IP
addresses
Finds another available
auto-IP address
Disconnect from the
network and the LAN
Status LED stays red
15

Hostname DHCP Auto-IP Static IP
Default Hostname GENvv-aa-nnn
(see above)
GENvv-aa-nnn
(see above)
None, hostname
cannot be used
Hostname Protocol Hostname by NetBIOS Hostname by NetBIOS None, hostname
cannot be used
Hostname on Web
Pages
Shows IP address on
“Home” page Shows
hostname on “LAN
Configure” page
Shows IP address on
“Home” page Shows
hostname on “LAN
Configure” page
Shows IP address on
“Home” page Hostname
disabled on “LAN
Configure” page
4.5. Hostnames
The hostname is an address in the form of text instead of numbers (for example: GEN30-25-125). This
address mode is less common than the IP address because the hostname cannot be viewed from it’s 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, if the hostname is
changed to “Heater_3” then a control program can send a command to Heater_3 and it is easy understand.
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 supply.
The default hostname is in the format:
< Product > < Voltage rating > – < Current rating > – < last 3 digits of serial number >
If the rating has a decimal point, substitute “p” for the decimal point. For example,
Model Serial Number Default Hostname
GEN40-38-LAN 047Z120-0136 GEN40-38-136
GEN300-5-LAN 048Z084-0028 GEN300-5-028
GENH30-25-LAN 048Z105-0026 GENH30-25-026
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.
16

5. LAN SETUP
5.1. View the IP and MAC Addresses
When the power supply is running with the LAN enabled, the IP and MAC addresses may be viewed on
the front panel by following these steps:
1. Press and hold the FOLD button for three seconds. The 7-segment displays will show something such as:
IP-1 010
By turning the voltage encoder knob, the complete IP and MAC addresses may be seen.
Note, all four numbers of the IP address may be changed through the web pages or from the front panel
(see next section). The MAC address cannot be changed.
In this example,
the IP address is:
10.225.26.38
the MAC address is:
00:19:F9:27:D3:B0
( “AC” is short for “MAC”)
Rotate voltage knob
2. If the voltage knob is not changed for five seconds, the supply will revert to the normal voltage and
current displays. If this happens, press and hold the FOLD button agai
IP-1 10
IP-2 225
IP-3 26
IP-4 38
AC-1 00
AC-2 19
AC-3 F9
AC-4 27
AC-5 d3
AC-6 b0
17

5.2. Change the IP Address
The LAN with revision after 2.0 allows you change all four numbers (octets) of the IP address from the
front panel.
The IP address has four numbers (ex:“192.168.53.44”). Each number may be set to any value
from 1 to 254.
1. Press and hold the FOLD button for three seconds. The 7-segment displays will show
something such as:
The Power supply must be set to Local mode to allow changing the IP address
IP-1 192 “192” is the 1st number in the address.
2. 2. Rotate tohe voltage encoder until the display shows samething such as:
IP-3 53 “53” is the 1st number in the address.
3. Rotate the current encoder to change the 3d number in the address:
IP-3 60 “60” is the new 3d number.
4. To apply the new address, momentarily press the “FOLD” button..
See the display shows for a few seconds:
Lan Hold
This shows the LAN connection is on hold while acquiring the new address.
I.
If you da not press“FOLD” soon enough, the display returns to normal and the old address is kept.
II. If another device already has the address you are trying to set (duplicate addresses), then
after “Lan Hold” clears, the front panel will blink and the address will return to what it was
before the change was made.
When you change the IP address from the front panel,
the Genesys™ LAN will switch to STATIC addressing.
( DHCP and Auto-IP addressing will be disabled)
18

5.3. LAN Reset
If it is necessary to reset the supply to the factory default LAN settings, use the front panel to:
1. Press and hold the OVP/UVL button for 2 seconds
2. The 7-segment displays will show:
Lan rES
3. Release the OVP/UVL button
4. Briefly pressed and release the OVP/UVL button again.
5. The displays will briefly show:
rES 0000
and the LAN will be reset to the default settings (listed below).
If the OVP/UVL button is not pressed again, the LAN settings will not be reset
6. It may be required to AC cycle the power supply off and on. This ensures a new network
connection is established with the reset values
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 (see section 4.4)
Subnet mask: 255.255.0.0
Default gateway 0.0.0.0
DNS Server 0.0.0.0
• Hostname: GENvvv-aaa-sn (see hostname in section 4.5)
• Description: “Genesys 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
19

6. WEB PAGES
6.1. Benefit of Web Pages
The GenesysTM web pages are useful for:
• Reading the supply’s model, identity, revision and LAN setup information
• Configuring the LAN connection
• Programming and reading the supply’s DC output
This is all done graphically. There are no commands to look up
6.2. Opening the HOME Page
Once the rear panel LAN Status LED has turned green (see Section 3.3.4), you may open the Genesys™
web page
1. Read the IP address from the supply’s front panel by holding the FOLD button (see section 5.1 for details)
2. Open a web page browser program such as Internet Explorer or Netscape Navigator.
Type the power supply’s IP address as shown below. Click the GO button
The power supply’s Home page will appear. If it does not, see Troubleshooting section 15
3. Al ternately, the hostname may then be used for addressing the web page as shown below (if the power
supply is set for “DHCP/Auto-IP”, and if NetBIOS naming service is running on the computer). See Section
4.5 for a description of the hostname.
The power supply’s Home page will appear. If it does not, see Troubleshooting section 15
20