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PLH-P DC Power Supplies: Digital Remote Control

From the front, PLH-P models are identical to standard PLH models and retain all of their manual control features. The rear panel carries RS-232, USB and LAN (Ethernet) connectors, along with analogue in and out, remote on/off control, and duplicate output terminals. GPIB is optional ( -G models).

Digital Remote Control

RS-232, USB and LAN (LXI) Interfaces, plus optional GPIB

To meet the varying needs of today's engineers, a comprehensive array of interfaces is provided. RS-232, USB and LAN (Ethernet) with LXI support are provided as standard , with GPIB an option . Each of the digital bus interfaces provides full control of voltage, current, and output on/off, plus read-back of voltage, current and status. The interfaces are opto-isolated from the output.

Command Set and IVI Driver

The basic command set for the PLH-P series is compatible with both the original PL-P series and the QL-P series. An IVI driver for Windows is supplied. This provides support for common applications such as LabView* , LabWindows* and HP-VEE* .


An 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 power supplies because data speed is not an issue.


USB provides a simple and convenient means of connection to a PC and is particularly appropriate for small system use.

A USB driver is provided suitable for Windows* systems.

LAN-Ethernet with LXI

The 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 the most appropriate for larger system use because of its scalable nature.

LXI Compliance

The LAN interface is compliant with LXI-C. LXI is the next-generation, LAN-based modular architecture standard for automated test systems managed by the LXI Consortium, and is expected to become the successor to GPIB in many systems. LXI (LAN eXtensions for Instrumentation) - Learn more about LXI - the next generation Ethernet based bus interface for instrument applications.

GPIB (G models only)

These versions of the products are fitted with a GPIB (IEEE-488) interface. PLH-P(G) models retain all of the other interfaces, giving them even greater flexibility. * LabView and LabWindows are trademarks of National Instruments.
HPVEE (now Agilent VEE) is a trademark of Agilent Technologies.
* USB interface is supported for Windows 2000, XP, Vista and Windows 7.
Windows is a trademark of Microsoft