IOCs

Wiki > The Backend System > Creating and Basics of IOCs

Creating an IOC

Building a new IOC? Before you get started, take a look at the relevant instrument page to see if there's any useful information for the device you're about to write an IOC for. Otherwise, let's get going. If you have problems see See IOC and device Troubleshooting.

1. Create the boiler plate IOC

   • Some Design thoughts for a serial/Ethernet IOC
   • Creating an ISIS StreamDevice IOC
   • Creating an LvDCOM IOC

2. You can now flesh out your IOC to work. I would encourage you to do this in a TDD style (if not write the tests afterwards) and make sure you follow the conventions. Use:

   • IOC Testing framework
   • Emulating devices

3. IOC Finishing Touches

   • Additional for motors Adding motor IOC to global motor moving and stop all

4. Record simulation

5. Disable records

6. Running (and testing) IOC

7. Add logging

8. Add any manuals used to the manuals dir and list

Conventions

• IOC naming

• ISIS PV guide

• PV naming

• PV units & standards

• Macro naming

Other

• Motor IOCs
• Libraries to include
• Creating a MODBUS IOC
• Using LVDCOM
• Convert Record
• Multi-value Protocols Tricks
• IOC Utilities includes general templates
• Removing or Renaming an IOC module
• IOC Testing framework
• Complexity of LabVIEW Drivers
• Typical start up log for an ioc

Specific IOC Information

For information on specific IOCs see Specific Device IOC

Further reading

• EPICS record reference manual
• IOC doxygen Documentation
• IOC message logging