SystemStateDataType – OPC UA for Machine Vision – Part 1: Control, configuration management, recipe management, result management

This DataType is an enumeration that identifies the pre-defined SEMI E10 states as described in Section 11.6. Its values are defined in Table 155.

Table 155 – Values of SystemStateDataType

Value	Description
PRD_1	Production: The vision system is currently working on a job.
SBY_2	Stand by: The vision system is ready to accept a command but is currently not executing a job. It could for example be waiting for a Start command or a user input.
ENG_3	Engineering: The vision system is not working and not ready to accept a command because a user is currently working on the system. This could be for editing a recipe or changing the system configuration.
SDT_4	Scheduled downtime: The vision system is not available for production and this was planned in advance. This could be for cleaning, maintenance or calibration works.
UDT_5	Unscheduled downtime: The vision system is not available for production due to failure and repair. This covers all kinds of error states that might occur during operation.
NST_6	Nonscheduled time: The vision system is not working because no production was scheduled. This also covers things like operator training on the system.