jyin999 / lcls-twincat-vacuum

TwinCAT library for LCLS vacuum

L2SI-Vacuum-Lib

The vacuum library implements the required functionality and interlocks for all devices in the architecture document. Encapsulation of data and logic is implemented for each device thus keeping local functionality, variables and IOs well hidden and safe from external modification.

The library is made up of multiple modules, i.e devices. Each vacuum device has its own function block. Each function block defines the interfaces, I/Os and includes all the pv/data for this particular device. All protection/run logic is implemented within the function block.

All necessary data variables are already tagged with pyTMC pragmas. Thus resulting in minimal programming to implement a device for a specific beamline or endstation, hence, reducing development time.

Device	Function Block	Description
Gauges
MKS 422	FB_MKS422	This function is for the Cold Cathode MKS 422 connected to a 937A/B. This function provides Interlock and Set Point Protection for the Cold Cathode.
MKS 317	FB_MKS317	This function is for the Cold Cathode MKS 422 connected to a 937A/B. This function block is used to provide protection and automatic turn on of ion gauges, it also manages the turn on of the AT_VAC boolean, and checks to make sure the pressure is good
MKS 500	FB_MKS500	This function is for the Cold Cathode MKS 500 connected to Beckhoff EL terminals. This function provides Interlock and Set Point Protection for the Cold Cathode.
MKS 500	FB_MKS500_EP	This function is for the Cold Cathode MKS 500 connected to Beckhoff EP Boxes. This function provides Interlock and Set Point Protection for the Cold Cathode.
MKS 275	FB_MKS275	This function block is used to provide protection and automatic turn on of ion gauges, it also manages the turn on of the AT_VAC boolean, and checks to make sure the pressure is good.