  The Simons Observatory (SO) is a ground-based cosmic microwave background
survey experiment that consists of three 0.5 m small-aperture telescopes and
one 6 m large-aperture telescope, sited at an elevation of 5200 m in the
Atacama Desert in Chile. SO will study the polarization and temperature
anisotropies of the Cosmic Microwave Background (CMB). The observatory will
require well-understood telescope pointing and scanning. Good antenna control
will allow us to execute the scan strategy devised to optimize sensitivity to
our scientific goals, calibrate the system with celestial targets, and make
maps. To achieve this, we integrate the data acquisition and control of the
telescopes' Antenna Control Units (ACUs) within the software framework of the
SO Observatory Control System (OCS). We present here the current status of the
software integration for the ACUs, as well as measurements of the Small
Aperture Telescope platforms' responsiveness to software commanding in the
factory, plans for in situ measurements, and prospects for implementation on
the Large Aperture Telescope.
