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Related Manuals for National Instruments RMX-4101
Summary of Contents for National Instruments RMX-4101
- Page 1 RMX-4101...
- Page 2 LAN Interface User Manual RMX-410x POWER SUPPLIES NATIONAL INSTRUMENTS...
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Page 3: Table Of Contents
Contents 1 GENERAL INFORMATION 1.1 Introduction ............................4 1.2 Feature Summary ..........................4 2 SPECIFICATIONS 2.1 Power Supply Specifications ......................5 2.2 LAN Specifications ..........................5 2.3 LAN Command Speed ........................7 3 SELECT THE CONTROL METHOD 3.1 Control Method Options ......................... 8 3.1.1 Select Local (Front Panel) Mode .................... - Page 4 8 PROGRAMMING USING IVI DRIVERS 8.1 IVI Description ........................... 21 8.2 IVI Support ............................21 9 PROGRAMMING USING SOCKETS 9.1 Socket Description ........................... 22 9.2 Communicating Using Sockets ....................22 9.3 Controller Access: Single and Multiple Clients ..............22 9.4 Input Buffer Requirements ......................22 9.5 Message Terminators ........................
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Page 5: General Information
NATIONAL INSTRUMENTS 1 GENERAL INFORMATION 1.1 Introduction The Local Area Network (LAN) option for the RMX-410x 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. -
Page 6: Specifications
NATIONAL INSTRUMENTS 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 RMX-410x Power Supply User Manual for the specifications. 2.2 LAN Specifications ELECTRICAL Ethernet... - Page 7 NATIONAL INSTRUMENTS WEB PAGES Multiple users Multiple web pages can be open at the same time 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...
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Page 8: Lan Command Speed
NATIONAL INSTRUMENTS 2.3 LAN Command Speed The following communication speeds are typical values only. In addition to the variability in the RMX-410x 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. -
Page 9: Select The Control Method
NATIONAL INSTRUMENTS 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. MODE MODE DESCRIPTION Control using an Ethernet connection LAN will disable the J4-IN serial port Local Control using the front panel encoders and buttons LAN can be used to measure and read... -
Page 10: Link Led
NATIONAL INSTRUMENTS LAN Option Rear Panel View The power supply rear panel, with the LAN option installed, is shown below. Fig.3-1: R ear Panel LAN Features 1. Link LED 2. Activity LED 3. RJ-45 Socket 4. LAN Status LEDS 3.1.4 L ink LED LED embedded in the RJ-45 socket glows green when the connection is made to an active network. -
Page 11: Connect To Network
NATIONAL INSTRUMENTS 4 C ONNECT 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. -
Page 12: Power-Up The Lan Power Supply
NATIONAL INSTRUMENTS 4.3 Power-up the LAN Power Supply The RMX-410x power supply LAN option automatically detects if it is connected or disconnected from a network. It will also automatically look for a network server and it will retrieve or create an IP address. -
Page 13: Hostname
NATIONAL INSTRUMENTS 4.5 Hostname The hostname is a text address instead of a numeric address. 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). -
Page 14: Lan Setup
NATIONAL INSTRUMENTS 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. - Page 15 NATIONAL INSTRUMENTS 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 “RMX Rackmount Power Supply” Description: Controller Access One Client Only Enabled...
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Page 16: Web Pages 6.1 Benefit Of Web
NATIONAL INSTRUMENTS 6 WEB INTERFACE 6.1 Web Interface Overview The RMX-410x web pages are useful for: • Reading the power supply model, identity, revision and LAN setup information • Configuring the LAN connection • 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 RMX- 410x web page. -
Page 17: The Home Page
NATIONAL INSTRUMENTS 6.3 The HOME Page The following page appears when the web page is first opened or when it is refreshed: 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. -
Page 18: Dc Power ➔ Protection Page
NATIONAL INSTRUMENTS 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. -
Page 19: Lan ➔ Configure ➔ Modify Page
NATIONAL INSTRUMENTS 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. -
Page 20: Lan ➔ Advanced Page
NATIONAL INSTRUMENTS 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 connection at a time and to enable UDP socket connections. -
Page 21: Programming Using Visa Drivers
NATIONAL INSTRUMENTS 7 PROGRAMM ING 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. -
Page 22: Programming Using Ivi Drivers
NATIONAL INSTRUMENTS 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. -
Page 23: Programming Using Sockets
NATIONAL INSTRUMENTS 9 PROGRAMMING USING SOCKETS 9.1 Socket Description The VISA drivers for the RMX-410x power supply 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 RMX-410x offers socket connections. -
Page 24: Message Terminators
NATIONAL INSTRUMENTS 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. All SCPI commands must have a terminator character. -
Page 25: Connecting Over Wan
NATIONAL INSTRUMENTS 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 RMX-410x LAN interface has a server for running the web pages. The web server is listening in Port 80. -
Page 26: Command Set
NATIONAL INSTRUMENTS 11 COMMAND SET For the complete command set, please refer to RMX-410x User Manual. 11.1 Lan Specific Commands 11.1.1 Read the Hostname The hostname may be read with this query SYSTem:COMMunicate:LAN:HOST? Syntax: SYST:COMM:LAN:HOST? Example: Response: The hostname string,up to 16 characters long Example: RMX60-14-123 is a typical default hostname 11.1.2 Read the IP Address The IP address may be read with this query... -
Page 27: Rs-485 Multi-Drop Commands
NATIONAL INSTRUMENTS 12 RS-485 MULTI-DROP COMMANDS 12.1 Introduction The RMX-410x power supply LAN option allows you to control up to 30 other supplies. All are controlled through one IP address from the master supply. 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. -
Page 28: Connect And Configure The Rs-485 Supplies
NATIONAL INSTRUMENTS 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 A. -
Page 29: Global Set The Voltage Limit
NATIONAL INSTRUMENTS INST:nSEL 6 Example: 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] <nn.nn>... -
Page 30: Troubleshooting
NATIONAL INSTRUMENTS 13 T ROUBLESHOOTING 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. Verify the LAN is selected (see section 3.1.3). B. Switch the power supply AC OFF. C. - Page 31 NATIONAL INSTRUMENTS Cannot Open Web using Laptop or Dual-LAN Card Computer If you have a computer with two network cards, the computer may not know which card to use when trying to open the RMX-410x 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.