Line Trigger, Line Selection
When LineRateMode is PULSE or CONVERT, the line trigger signal originates from an external motion encoder device. In that case line trigger input port(s) must be selected.
The selection is performed in two steps:
- Determine the electrical style of the input port(s) and set LineTrigCtl accordingly. MultiCam selects the default input port(s) for the selected style.
- Optionally select one alternate choice for the input ports by setting the LineTrigLine parameter.
LineTrigCtl |
Description |
ISO |
Single isolated current loop input port compatible with TTL, +12V, + 24V signaling |
DIFF |
Single differential High Speed input port compatible with EIA/TIA-422 signaling |
ISO_PAIRED |
Pair of isolated current loop input ports compatible with TTL, +12V, + 24V signaling |
DIFF_PAIRED |
Pair of differential High Speed input ports compatible with EIA/TIA-422 signaling |
Motion encoder device type |
Default port(s) assignment |
Alternate port assignment(s) |
Dual-output RS-422 compatible phase quadrature incremental motion encoder |
DIN1 (A) + DIN2 (B) |
- |
Dual-output phase quadrature incremental motion encoder |
IIN1 (A) + IIN2 (B) |
IIN3 (A) + IIN4 (B) |
Single output RS-422 compatible incremental motion encoder |
DIN1 |
DIN2 |
Single output incremental motion encoder |
IIN1 |
IIN2 |
Notes
- Dual output devices where only one output is connected are assimilated to single output devices.
- Any input port and hence any electrical style can be specified for that function.
- The default port assignment for both single signal electrical styles is different of the one of the trigger.