I wish to clarify Anand's response to account for the timelines in this post.
DashBoard 8.7.1, released October 2019, adds native support for PTZ and paint control of SONY BRC-X1000 and SONY BRC-H900 cameras. This licensed functionality can be accessed by adding the BRC camera through the File > New > Other ... wizard, and selecting Camera Control > "PTZ Camera" for a device type. The "PTZ Camera" functionality uses IP VISCA protocol exclusively. What I mean by "native support" is that the SONY Custom Panel is no longer required; rather the functionality is built into DashBoard.
The SRG-300 camera supports regular VISCA protocol over serial, but does not appear to support IP VISCA protocol, thus it will not work with the "PTZ Camera" functionality in DashBoard 8.7.1.
To use "PTZ Camera" with supported SONY PTZ cameras requires the "Sony BRC Camera Control" license.
DashBoard versions prior to 8.7.1 only offered the "Sony Camera" device type. That device type, now renamed "SONY ENG/Box Camera" in 8.7.1, can only be used to paint SONY cameras through the use of a SONY CNA-1 protocol adapter. PTZF control is not offered in the 'Sony Camera' plugin.
To use "Sony Camera" with supported SONY cameras (via CNA-1) requires the "Sony SSP Camera Control" license.
#DashBoard