Siemens SIMATIC HawkEye 1600T Series Manual

Chapter 1 Introduction1-8 SIMATIC HawkEye™ 1600T Smart Camera Guide Rev. 1E, Nov 2007Triggering Rules for Single Channel DevicesThe SIMATIC HawkEye™ 1600T has a single acquisition channel. When a Jobis constructed, only one Acquire can run at a time. Table 1–3 summarizes therecommended cases. Note that SIMATIC Visionscape® enforces this conditionby honoring the first Acquire requested and generating an overrun on any otherAcquire that are requested to run from the external controlling device (usually, anexternal trigger or a PLC).TABLE 1–3. Triggering RulesJob Structure Snapshot Triggers Behavior and Comments1 Inspection/Multiple Snapshots1st triggered only orNo triggersFunction without overruns, nofurther action from externalcontrolling device.1 Inspection/Multiple SnapshotsAll triggered 1st triggered externally, remainingself triggered from PicDone signalof previous Acquire.N (max 4) inspections/1 Snapshot EachAll triggered/Each on aseparate triggerWorks as expected in externalcontrolling device makes sure thatone Inspection is triggered at atime.