PAGE Acquisition Mode

This mode is intended for image acquisition of discrete objects from a line-scan camera.

Each page is constituted of contiguous lines; the page length, expressed in lines, is specified by PageLength_Ln.

A single sequence is capable to acquire SeqLength_Pg pages within the channel activity period. The PAGE acquisition mode is applicable to any line-scan camera.

The PAGE acquisition mode is explicitly invoked by assigning value PAGE to AcquisitionMode.

When invoking the PAGE acquisition mode:

The ActivityLength parameter is enforced to 1. The channel goes inactive at the completion of the sequence.
The PhaseLength_Pg parameter is enforced to 1. A single page is acquired during an acquisition phase.
The page length is specified by PageLength_Ln. The minimal applicable value is the camera line rate divided by 500. Note for longer pages, use the LONGPAGE acquisition mode.
The TrigMode parameter establishes the starting condition of the sequence and consequently the starting condition of the first phase —the first PAGE— of the sequence. Possible values are IMMEDIATE, HARD, SOFT, and COMBINED. The default MultiCam setting is COMBINED.
The NextTrigMode parameter establishes the starting condition of the subsequent phases —pages— within the sequence. Possible values are SAME, REPEAT, HARD, SOFT, and COMBINED. The default value is SAME.
The PageDelay_Ln parameter can be used to insert a delay between the hardware trigger signal and the page trigger event.
The sequence length is specified by SeqLength_Pg. Assigning a value -1 enforces an indefinite acquisition sequence.
The EndTrigMode parameter is enforced to AUTO. The sequence terminates automatically after the acquisition of the specified number of pages. An indefinite acquisition sequence stops when the channel is forced to its inactive state.
The BreakEffect parameter establishes the effect of a user break on the channel. When set to FINISH, it ensures the integrity of the last acquired phase —page—– even when the user break event occurs during its execution; this is the default value. When set to ABORT, the effect of the user break is immediate (at line boundary); the current acquisition might be incomplete; the portion of image already acquired is available.
The parameter Elapsed_Pg reports the number of acquired pages in the sequence
When the sequence length is defined (SeqLength_Pg ¹ -1), Remaining_Pg reports the number of remaining pages in the sequence.