Discontinuation of the PLI Series
As your partner for measurement and test technology in the field of electronic loads, we would like to inform you of an important product change.
The proven PLI series will be officially discontinued as of December 31, 2026.
We recommend that you plan for any upcoming needs, expansions, or replacement units as soon as possible.
The Future of Measurement Technology - The New HES Series
With the discontinuation of the PLI devices, we are making way for the next generation of energy and performance testing. The HES series is the official successor and was specifically developed to meet the increased demands of modern test benches.
Of course, we would like to provide you with all the important answers to your technical questions regarding the transition below.
How long will technical support and the supply of replacement parts be guaranteed?
Support:
We have no plans to discontinue technical support for PLI devices. We will continue to provide support as usual.
Repairs & Replacement Parts:
We will continue to perform repairs as long as we are able to source the necessary replacement parts.
Can existing software scripts and programming commands continue to be used?
- Yes, in most cases, the commands for the PLI series can also be used for the HES series.
- The HES series command set has been expanded to include additional functions, but the existing PLI command set remains compatible.
- To ensure a smooth transition, we are happy to provide you with a comparison of the SCPI commands (based on the PLI).
How long will technical support and spare parts be available?Is the new HES series mechanically and electrically compatible with the PLI series?
Mechanical:
The design and power density have remained the same, so in principle, little has changed for you during installation. The display has been updated. Depending on the model, there may be slight changes in the placement of connectors or ports.
Electrical:
The electrical performance specifications are virtually identical.
Digital Interfaces:
The RS-232, USB, LAN, CAN, and the optional GPIB are standard features in the HES series, just as they are in the PLI series.
I/O Port:
Both the I/O port of the PLI series and the I/O port of the HES series are 25-pin. Important: The pin assignments of the two I/O ports are different.
Can devices from the PLI and HES series be used in mixed operation?
Parallel Operation:
Mixed operation in a parallel configuration is possible.
Master-Slave Operation:
Please consult with H&H regarding this. We would be happy to advise you.
Whether you’re looking for advice on the latest PLI devices or want to integrate the new HES series into your test environment—as your partner for electronic loads in Germany and around the world, we’re here to provide you with guidance and support.