Siglent · Power supply

Siglent SPD3303X / SPD3303X-E / SPD3303C dual-output programmable DC power supply (legacy SCPI)

BenchMesh controls the Siglent SPD3303X / SPD3303X-E / SPD3303C dual-output programmable DC power supply (legacy SCPI) from your PC: live readings on a power supply panel, every setting within reach, and every value recordable on one timeline with the rest of your bench.

Models

Model	Status	Note
SPD3303X	Awaiting confirmation	1 mV / 1 mA resolution
SPD3303X-E	Awaiting confirmation	10 mV / 10 mA resolution (setpoints are rounded by the instrument)
SPD3303C	Awaiting confirmation	USB only; no MEAS:POWE? (power is V*I)

What you can do from BenchMesh

Power supply panel 2 channels

Live readings

CC
CV
IOUT
OUTPUT
POUT
REMOTE
SBY
VOUT

Settings you can change

Current
Output
Remote
Voltage

Connections

USB-TMC: USB Test & Measurement Class (USB id 0483:7540). No vendor driver needed on Linux; on Windows BenchMesh installs Microsoft’s WinUSB driver with one click.
LAN (SCPI socket): TCP port 5025. Enter the instrument’s IP address.

Notes

To confirm on first contactUSB id 0483:7540 and LAN port from community reports; some units enumerate as F4EC:1430.
Known issueRS PRO RSPD3303X-E rebadges answer an identify without 'Siglent'. Firmware 1.01.01.02.05 rejects LAN commands ending in a line feed.

Sources

The definition was written from these documents (definition siglent_spd3303x v0.1.0).

SPD3303X/X-E Quick Start (SPD3303X_QuickStart.pdf), printed pages, pages 12 (ratings), 25-31 (remote control, commands, SYST:STAT? bits)
SPD3303C Quick Start / User Manual / Programming Guide, printed pages, pages 23-27

Have one on your bench?

Connect it, press Detect, try the controls - then tell us how it went. Every confirmation moves a model from “Awaiting” to “Community-confirmed” for everyone.

Download BenchMesh How to confirm an instrument