To check if you have remote acces to the device use:

• python3 -c “from zhinst.core import ziDAQServer; d=ziDAQServer('localhost', 8004, 6); print(d.getString('/zi/devices'))”

It should return:

"DEV30208": {
  "AVAILABLE": 1,
  "INTERFACE": "PCIe",
  "INTERFACES": "1GbE",
  "DEVICEIP": "192.168.100.17",
  "OWNER": "",
  "STATUS": "Available",
  "DEVTYPE": "MFLI",
  "STATUSFLAGS": 2

The Stanford Research Systems SR860 is a high-performance DSP lock-in amplifier designed for precision measurements of small AC signals in noisy environments. It operates over a frequency range from 1 mHz to 500 kHz and provides exceptional sensitivity down to 1 nV (voltage mode) or 1 fA (current mode), with a dynamic reserve greater than 120 dB for stable measurements even under high background noise conditions. Key features include:

• Wide frequency range: 1 mHz – 500 kHz
• Ultra-low input noise: typically 2.5 nV/√Hz above 1 kHz
• High precision phase detection with extremely low phase noise and drift
• Dual reference and harmonic detection capabilities
• Advanced digital filtering with selectable RC, Gaussian, and linear-phase filters
• Integrated FFT analysis, strip-chart recording, and high-speed data capture/streaming up to 1.25 MHz
• Differential or single-ended signal inputs and outputs
• Modern touchscreen interface with real-time visualization and data history
• Multiple communication interfaces: Ethernet, USB, RS-232, and GPIB

The manual of the SR860 also contains the commands that are accepted by the software:

• Manual

THe SR860 uses a direct Lan connection with the static ip set to 192.168.100.18. As mentioned above a list of valid commands can be found in the manual. To check if you have remote acces use the following command:

• printf “*IDN?\r\n” | nc 192.168.100.18 23

it should reply:

• SR865 Lockin Amplifier: Connection x