The jaws are an abstraction layer in the form of a set of records that can be placed onto 4 motors which represent the North, South, East and West blade. They will allow a centre and gap to be set in both horizontal and vertical directions. It is a requirement that if an underlying motor position is set then the gap and centre should adjust to be in sync.
The jaws are a .db record which can be added to most motors. The .db is assembled from records for individual jaw blades, and header records
which describe the jawset as a whole (e.g. the overall lock status depending on the lock status of each individual blade).
They are loaded via a jaws.cmd file in the configuration area which is read by the motor IOCs. The exact location is dependent on the type of motor.
Please see the WIKI for more information on Jaws:
The motion set points system tests are located in the EPICS-IOC_Test_Frameork: EPICS-IOC_Test_Framework\tests\jaws.py
To run the system tests, run the following command from and EPICS Terminal (C:\Instrument\Apps\EPICS\config_env.bat): python run_tests.py -t jaws.
Use the -a flag if you want to run the motionSetPoints emulator for manual testing.