Online

Online
A Program Package for
Data Acquisition and Beamline Control
at HASYLAB
Version January 2, 2024
by
Thorsten Kracht

Contents
List of Tables
List of Figures
The Introduction
- Contributions
News
Hints
- What to do, if ...
- Error Messages
Getting Started
- Starting Online
- Starting the Daemon
- The First Steps
- Getting Help
The Files
- Path Name Syntax
- The Directories
- The Files of /online_dir
- Preparing the Test Version
Linking User-written Code to ONLINE
The Alignment
- Move/adjust
- Move/motor
- Virtual Motors
- Move/slit
- Move/m1=.../m2=...
- The Monochromator: MOVE/MC
- Scan/Center
- Scan/Reflection
- Move/rowland
Scans
- General Scans
- The Q Scan Menu
Working in Q-Space
- Changing the UB matrix
- Setting up the UB Matrix
- Example showing the new syntax, E4C and E6C
Moving the Undulator
- BW1
- BW3
Symbols
The GPIB Interface
- AWE
  - A Compensation Run
- Debugging
The Functions by Category
- A/D, D/A Converter
  - ADC
  - ADC Thresholds
  - DAC
  - MCA
  - oma_1460()
  - run_adc()
  - LeCroy 3513 (CAMAC)
- Canbus
- Counter and Timer
  - Counter Functions
  - Timer Functions
  - find_max()
  - vfc()
  - was_beamloss_doris()
  - was_beamloss_petra()
  - was_injection()
- CAMAC
  - CMC
  - LAMs
- Diffractometer Functions
  - fc_filter()
  - fc_adjust_filter()
  - diff_calc_angles(), fc_calc_angles()
  - diff_calc_hkl(), fc_hkl()
  - diff_h(), diff_k(), diff_l(), fc_qx(), fc_qy(), fc_qz(), fc_psi()
  - diff_two_theta(), diff_omega(), diff_chi(), ...
  - diff_mode(), diff_asn(), diff_psirefx(), diff_psirefy(), diff_psirefz()
  - diff_set_r0(), diff_get_r0(), ~r1
  - Example
- DSO - Digital Sampling Oscilloscope
  - waveform()
  - dso()
- Encoder
  - encoder(), IK220
  - get_position(), IK320
  - awe()
- GPIB (IEEE 488)
  - gpib()
- HEXAPOD
  - Usage example: HEXAPOD status
- HV Power supply
  - VHQ205L
  - VHSC005N
- I/O Register
- Miscellaneous
  - create_scan_name()
  - device()
  - n_device()
  - Doris
  - Doris_state
  - Doris_is_sync_run
  - Doris_wait_for_sync_run
  - elcomat(), elcomat_ascii()
  - get_online_dir()
  - device_record()
  - device_type()
  - get_devices(), get_modules()
  - flag
  - is_device()
  - is_tango()
  - module_name()
  - Peak
  - Petra
  - Petra_state
  - Petra_is_sync_run
  - Petra_wait_for_sync_run
  - Pulse Generator
  - hc_flag()
  - mpa3()
  - scan_mar()
  - STR621 (BW4)
  - Trainno
  - x328()
- Monochromator
  - Hooks
  - Mostab
- NeXus
- Rowland (hasrow)
  - sx700
- Motors
  - Moves
  - Hooks
  - Parameter
  - Slit Functions
  - Encoder (OMS-MAXV)
- SX700 (hasbw3)
- Tango
  - Attributes
  - Commands
  - State
  - IsAlive
- TDC
- Undulator
- ADS
- VME
The Commands
- Calibrate
- CAMAC
- Define/Redefine/Undefine
  - Network Devices
- Do
- Exit
- GPIB
- HT
- Load/Store
- LC584
- MCA
- Move
  - Special symbols
  - Before-move-command, after $\cdots$
- Online
- Privilege
- Protect/Unprotect
- Scan
- Server
- Show
- Spectra
- TkI
The Examples
- VmeTest
- Measuring a move time using the loop command
- Motor movements (from Labview)
- A Simple Fast Scan
- A Fast Scan Using a Dummy Counter
- A MCA Scan
- A Simple Q Scan
- 2-D Scans: many_scans.pl
- An EXAFS Scan
- A Regions Scan
- An Image Plate Scan
- W1: Non-Fast Scan
- An application linked with Online
The Hardware Configuration
The References
Index
About this document ...