From Serial Port Tool:
PTZ Controller is an application to control Pan Tilt Zoom High Speed PTZ camera. It is PTZ keyboard software for PTZ camera. It controls PTZ camera through RS232 port directly, or through RS485/USB port with a converter. It supports multiple standard protocols. User-defined and keyboard shortcut functions make it more powerful than traditional PTZ keyboard hardware. It's also a good debug tool for PTZ camera's test and install. It is a robust, easy-to-use PTZ keyboard controller. Features: Control multiple PTZ cameras through RS232 port directly. Support protocols for Pelco, AD, Bosch, Sony, Panasonic, Samsung ,LG, LiLin, Canon, ERNA, and Hitachi. Support control for Pan, Tilt, Zoom, Focus and Iris. Support multiple Auto Scan tracks. Powerful custom function buttons. Sending user-defined Hex data to PTZ camera. Keyboard shortcuts to control cameras and presets. Build-in joystick and gamepad. Remote controler by HTTP request. Allow to export and import setting file.
Yes, it supports autoscan. It can turn on/off autoscan menu of PTZ Camera for PTZ Controler v1.6.
However, more function of autoscan will be supported in PTZ Controller v1.7, which will be released on July 30, 2008. That is PTZ Camera will scan clockwise or anticlockwise automatically by mouse click on PTZ Controller.
I looked up software that just control PTZ Camera, and tried several of them. This one seems best! It supports all PTZ Cameras in our system and have all functions of a real PTZ keyboards. I can control the PTZ Camera from screen directly and it is far better that built-in PTZ function of video recording software.