Rockwell Automation 1771-QB Linear Pos. - Manual (Page 16)

Introducing the Linear Positioning Module
Chapter 1
1Ć5
The module also connects to linear displacement transducers (one for each of
the two axes) via wiring arm terminals. The transducer senses the axis position
and feeds it back to the module, thereby closing the control loop.
The module’s built-in processor samples the linear displacement transducer
interfaces and determines positions along each of the two axes every two
milliseconds. The module then updates the analog outputs based on a
proprietary algorithm designed specifically to handle hydraulic actuators. This
rapid update rate provides repeatable positioning and superior control of
velocity without jerky movement.
Motion blocks provide for complex motions by allowing motion segments to be
blended or chained together. These motion segments may also be synchronized
using the hardware input triggers and outputs.
Cam emulation permits motion segments in one axis to start motion segments in
another axis. Articulated motions and axis sequencing may be easily
accomplished.