Owner's manual

Appendix F - Variables Grouped by Fluidmove Activity F-143
SECS/GEM Variables
Fiducial finding control is achieved through equipment constants. The SECS/GEM host does not have to be in remote mode.
Table F.62-1 Program Fiducial ON/OFF Control – Equipment Constants
Equipment Constant Data Type ID Description
ec_WorkpieceFindFids
A[4]
“ON” or “OFF”
6590
If set to “ON”, workpiece fiducials will be found (normal operating mode).
If set to “OFF”, workpiece fiducials will be skipped.
ec_PatternFindFidsLane
A[4]
“ON” or “OFF”
6591
If set to “ON”, ALL pattern fiducials will be found (normal operating mode).
If set to “OFF”, patterns flagged for SECS/GEM control will skip fiducial finding.
Log File
To turn on logging, select “SECS/GEM Host Configuration Change” under the “SECS/GEM” button in the event manager. This selection is normally
turned on by default. The log file will indicate when one of the equipment constants has changed or when the workpiece or pattern fiducials are being
skipped. These entries will appear when one of the equipment constants are changed:
2008-06-30,17:05:58.953,SECS/GEM Host Configuration Change,VID=6590,Old Value=ON,New Value=OFF
2008-07-01,18:04:52.732,SECS/GEM Host Configuration Change,VID=6591,Old Value=ON,New Value=OFF
These entries will appear only if finding fiducials has been turned off:
2008-07-01,18:05:02.105,SECS/GEM Host Configuration Change,Pattern Find Fiducials=OFF
2008-07-01,18:05:02.105,SECS/GEM Host Configuration Change,Workpiece Find Fiducials=OFF
Dual Lanes
For pattern fiducials, the SECS/GEM host will not be able to selectively turn fiducial finding on or off by lane number. When turned on, both lanes will
find fiducials. When turned off, neither lane will attempt to find fiducials.
For processing fiducials on just the first board of each lane during recipe validation, the SECS/GEM host should enable workpiece and pattern fiducial
finding until collection events are received from each lane indicating the first board has been processed. Fiducial finding can then be turned off for
subsequent boards.