Core Summary
The remote interface of DC power supplies enables the power supplies to be controlled by test software instead of manually turning knobs, allowing for automatic voltage setting, power-on in sequence, and current readback for determination. Most Aim-TTi models come with LAN (LXI) and USB interfaces, and some with GPIB, making it easy to integrate into existing test systems and facilitate automation upgrades in the future.
1. Why is remote control needed
Manually setting voltage is fine for single-unit debugging, but once automatic test equipment (ATE) or multi-channel parallel testing is involved, manual operation becomes slow and prone to errors. The remote interface turns the power supply into an "instrument node" that can be called by scripts, enabling precise replication of each power-on action in the test process.
2. How to choose among several interfaces
**USB**: Point-to-point, simple wiring, suitable for single workstations and temporary debugging, fast computer recognition.
**LAN (LXI)**: Network-enabled, multiple devices can be connected via a switch for centralized management and remote operation, suitable for production lines.
**GPIB**: Common in older systems, good compatibility with old production lines, preferred when migration costs are high.
3. Considerations for use
Commands usually follow the SCPI standard, with slight differences in syntax across different models. Check the programming manual before writing scripts.
When setting an upper limit remotely, retain hardware overcurrent protection and do not rely solely on software judgment to prevent equipment damage due to command anomalies.
The network environment should be stable to avoid control command packet loss leading to malfunctions. It is recommended to use a separate network segment for critical workstations.
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