SKIF Beamline Control Software

Monorepo for the SKIF synchrotron beamline control system. Contains Sardana controllers, macros, helper GUIs, and Rust-based device servers for beamlines 1-2 and 1-4.

---

System Overview

The SKIF control software serves two active experimental stations. Each station runs a set of Rust services that talk directly to hardware over TCP, plus a Python Sardana layer that exposes those services to the control system through Unix domain sockets.

NGTU 1-2 — Non-cooled slit station

Controls three independent hardware subsystems:

Subsystem	Rust service	What it drives
Slit	slit_controller	4-axis non-cooled slit using Standa steppers, RF256 quadrature encoders, and TRID temperature sensors; hardware at 192.168.0.51, 192.168.0.200, 192.168.0.201
Cooled slit	cooled_slit_controller	4-axis water-cooled slit using EM2RS servo amplifiers with LIR linear encoders and ICPCON M7015 temperature acquisition; hardware at 192.168.0.61
Filter	filter	Single-axis beam filter using an EM2RS servo and LIR linear encoder; hardware at 192.168.0.60

Sardana controllers deployed: SlitController.py, EM2RSController.py, LatchController.py. Macros: AllMacro.py. Shared modules: TRID.py, motarem_client/.

NGTU 1-4 — XAFS station

Controls the XAFS (X-ray Absorption Fine Structure) beamline:

Subsystem	Rust service	What it drives
XAFS	xafs	4-axis cooled slit, 1-axis attenuator, collimator temperature readout, and water-inlet monitor; all hardware at 192.168.0.57

Sardana controllers deployed: CooledSlitController.py, Attenuator.py. Shared modules: motarem_client/.

---

Repository Layout

skif/
├── motarem/          # Rust motion server + Python client (external submodule)
├── rust_devices/     # Rust device crates (external submodule)
├── ngtu_1_1/         # Sardana controllers and macros for beamline 1-1
├── ngtu_1_2/         # Sardana controllers, macros, and Rust services for beamline 1-2
│   ├── slit_controller/          # Rust crate: non-cooled slit
│   ├── cooled_slit_controller/   # Rust crate: cooled slit
│   ├── filter/                   # Rust crate: beam filter
│   ├── services/                 # systemd units for Tango/Sardana
│   └── scripts/                  # deploy and init scripts
├── ngtu_1_4/         # Sardana controllers and Rust service for beamline 1-4
│   ├── xafs/                     # Rust crate: XAFS station backend
│   ├── services/                 # systemd units for Tango/Sardana
│   └── scripts/                  # deploy and init scripts
├── docs/             # Block diagrams and documentation
└── requirements-py38.txt  # Aggregated Python dependencies

External submodules

Path	Repository	Description
motarem/	github:Tombleron/motarem	Rust motion server + Python client
rust_devices/	github:Tombleron/slit_controller	Rust crates for hardware devices

---

Quick Start

For a complete installation walkthrough — prerequisites, first-time setup, hardware configuration, and troubleshooting — see docs/setup.md.

The short version for a routine update of an already-configured station:

git pull --recurse-submodules
./ngtu_1_2/scripts/deploy.sh   # rebuild Rust + redeploy Python for 1-2
./ngtu_1_4/scripts/deploy.sh   # same for 1-4

---

Updating Submodules

# Pull latest commits for all submodules
git submodule update --remote --merge

# Commit the new submodule pointers
git add motarem rust_devices
git commit -m "chore: bump submodules"