Wireless digital dial with zigbee and arduino?

I have a digital dial which I read out serial with an arduino sketch by calling a function which triggers to measure with the dial.
Now I would like to become this dial wireless with two zigbee modules. The sketch for read out would be on a separate arduino with zigbee on the digital dial side. On the other side I would have a “master” arduino which controls everything.

How could I send from one arduino the command to measure the data to the other arduino over the zigbee modules and how do the zigbee modules have to be configured?