LineRateMode

Line rate generation method

Applicable product(s): 1191 Grablink Value, 1198 Grablink Avenue, 1621 Grablink Express, 1624 Grablink Base, 1623 Grablink DualBase, 1622 Grablink Full, 1626 Grablink Full XR.

Parameter Info

Class Category Level Type Access
Channel Encoder Control ADJUST Enumerated Set and Get
Num ID String Identifier C, C++ identifier
1328 << 14 LineRateMode MC_LineRateMode

Parameter Description

In line-scan system, this parameter declares the device responsible for line rate generation.

For more information, refer to Line rate modes.

When LineRateMode is set to PERIOD, the downweb line rate is controlled by the Period_us parameter.

When LineRateMode is set to EXPOSE, the downweb line rate is controlled by the Expose_us parameter.

When LineRateMode is set to PULSE or CONVERT, the downweb line rate is directed by a pulse signal applied to line trigger hardware line selected by the LineTrigLine parameter.

The applicable line rate modes are depending on the selected LineCaptureMode and on the camera line-scanning mode. The camera line-scanning mode is determined by the Expose and Readout parameters (Camera Features category). Two classes of camera line-scanning mode are considered in this case:

  • Free-running cameras
  • Controlled line rate cameras

Parameter Values

Enumeration: CONVERT, PULSE, PERIOD, CAMERA, EXPOSE, SLAVE

Table 1. CONVERT
MC_LineRateMode_CONVERT

Applicable product(s): 1191 Grablink Value, 1198 Grablink Avenue, 1621 Grablink Express, 1624 Grablink Base, 1623 Grablink DualBase, 1622 Grablink Full, 1626 Grablink Full XR.

Description

Rate Converter. The downweb line rate is derived from a train of trigger pulses processed by a rate converter belonging to the grabber.
Table 2. PULSE
MC_LineRateMode_PULSE

Applicable product(s): 1191 Grablink Value, 1198 Grablink Avenue, 1621 Grablink Express, 1624 Grablink Base, 1623 Grablink DualBase, 1622 Grablink Full, 1626 Grablink Full XR.

Description

Trigger Pulse. The downweb line rate is directly derived from trigger pulses applied to the grabber.
Table 3. PERIOD
MC_LineRateMode_PERIOD

Applicable product(s): 1191 Grablink Value, 1198 Grablink Avenue, 1621 Grablink Express, 1624 Grablink Base, 1623 Grablink DualBase, 1622 Grablink Full, 1626 Grablink Full XR.

Description

Periodic. The downweb line rate is internally generated by a periodic generator.
Table 4. CAMERA
MC_LineRateMode_CAMERA

Applicable product(s): 1191 Grablink Value, 1198 Grablink Avenue, 1621 Grablink Express, 1624 Grablink Base, 1623 Grablink DualBase, 1622 Grablink Full, 1626 Grablink Full XR.

Description

Camera. The downweb line rate is originated by the camera.
Table 5. EXPOSE
MC_LineRateMode_EXPOSE

Applicable product(s): 1198 Grablink Avenue, 1621 Grablink Express, 1624 Grablink Base, 1623 Grablink DualBase, 1622 Grablink Full, 1626 Grablink Full XR.

Description

Exposure Time – The downweb line rate is identical to the camera line rate, and established by the exposure time settings.
Table 6. SLAVE
MC_LineRateMode_SLAVE

Applicable product(s): 1198 Grablink Avenue, 1621 Grablink Express, 1624 Grablink Base, 1623 Grablink DualBase, 1622 Grablink Full, 1626 Grablink Full XR.

Description