RSSI on Pin 6

I’m using rssiDur = pulseIn(digitalPin, LOW, 200); for taking RSSI value from xbee’s pin 6 to arduino’s digital Pin.But i need more time than 200 millisecond period for application. How can i do that via XCTU or arduino?or another way can you suggest?

You are going to need to do that in your code on your Arduino as it is not an option on the XBee’s firmware.