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LD400P DC Electronic Loads: Digital Remote Control

Digital remote connections (LD400P only) LD400P automation interfaces including optional GPIB interface

LD400P - Digital Remote Control

To meet a wide variety of needs, the LX400P includes interfaces for RS-232, USB and LAN (Ethernet) with LXI support. GPIB is available as an option.

Each of the digital bus interfaces provides full control of and read-back of settings and status. The interfaces are at ground potential and are opto-isolated from the terminals.


RS232An RS-232/RS-423 interface is provided for use with legacy systems. This type of serial interface remains in common usage and is perfectly satisfactory for the control of load devices because data speed is not an issue.


USBUSB provides a simple and convenient means of connection to a PC and is particularly appropriate for small system use. A USB driver is provided which supports Windows operating systems.


LANThe LAN interface uses a standard 10/100 base-T Ethernet hardware connection with ICMP and TCP/IP Protocol for connection to a Local Area Network or direct connection to a single PC. This interface supports LXI and is highly appropriate for system use because of its scalable nature and low cost interconnection.


LXI The LAN interface is LXI compliant.
LXI (LAN eXtensions for Instrumentation) is a LAN-based modular architecture standard for automated test systems managed by the LXI Consortium, and is replacing GPIB in many systems.


GPIB The optional GPIB interface for the LD400P is compliant with IEEE-488.1 and IEEE-488.2. GPIB remains important in many legacy applications.

IVI Driver

An IVI driver for Windows is available. This provides support for common high-level applications such as LabView*, LabWindows*, and HP/Agilent/Keysight VEE*.

* LabView and LabWindows are trademarks of National Instruments.
* HPVEE (AKA Agilent VEE, Keysight VEE) is a trademark of Keysight Technologies Inc.
* Windows is a trademark of Microsoft.