Line Trigger Sources
The line trigger signal can be elaborated from one or two external signals provided by one of the following type of devices:
- Through one pair of high speed differential input ports driven by an RS-422 compatible dual output phase quadrature incremental motion encoder.
- Through one pair of isolated current-sense input ports driven by a dual output phase quadrature incremental motion encoder that is not RS-422 compliant.
- Through a single high speed differential input port driven by an RS-422 compatible single output incremental motion encoder or a similar device. This can be a dual output type of incremental motion encoder for which only one output signal is connected.
- Through a single isolated current-sense input port driven by an incremental motion encoder or a similar device that is not RS-422 compliant.
Possible ports assignments for each case
Sourcing device type |
Default ports assignment |
Alternate port assignments |
RS-422 compatible dual output phase quadrature incremental motion encoder |
High-speed diff. inputs #1 and #2 |
- |
Other dual output phase quadrature incremental motion encoder |
Isolated input #1 and #2 |
Isolated input #3 and #4 |
RS-422 compatible single output incremental motion encoder or similar device |
High-speed diff. input #1 |
High-speed diff. input #2 |
Single output incremental motion encoder or similar device |
Isolated input #1 |
Isolated input #2 |
- 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.