Problem of changing frequency

[LandauR]

Hi Mr. Dillenberger，

I am trying to implement this package with my r2000 LIDAR in ROS. There is a problem when I changed the parameter of scan frequency in r2000.launch. The default frequency is 35 Hz, and I changed it to 15 Hz for some reason. But today, when I try to change this parameter back to 35 Hz， it did not work. The frequency of laser is limited under 23 Hz, no matter how I change the parameter in launch file. I wonder if you can offer your help. I will be very appreciated.

Have a nice day!