What is the maximum transfer rate from an AFG Mk4? What is the latency between the data being recorded and transmitted?
Applies to the latest AFG Mk4 & TORNADO Mk2 Software Only. The rate settings make no difference to the data transmission rates in the new software. 1. The maximum latency from request (e.g. receiving a ‘?’) to the start of data being transmitted is approximately 12ms, for both RS232 (all baud rates) and Digimatic. The data could be up to 20ms old before it is transmitted. 2. For RS232 transmission the maximum data rate depends on the format transmitted. If units and the sign are transmitted the data rate will be reduced as there is more to transmit. At 9600, the guaranteed maximum rate is approximately 29Hz (continuous transmission function operates at 25Hz at this baud rate). At 115200 this is increased to approximately 70Hz (continuous transmission function operates at 50Hz at this baud rate). Note, however, that new data is only ‘available’ for transmission every 20ms, so sampling faster than 50Hz would result in the same data being repeated occasionally. 3. Determining the maximum
