Returns a vector of 32-bit unsigned integers (split into octets) containing the measured distance to each detected load coil in feet. If no load coil is detected then the system will return a NULL. If one load coil is detected, then it will return four bytes that will contain the distance in feet to that load coil from the node. Similarly if a second load coil is detected then eight bytes will be returned with the last four bytes containing the distance to the second load coil from the node. Since this method allows detection of up to 5 load coils, possibly 20 bytes containing the distances to each of the coils from the node could be returned. For example, a return of 0x00 00 04 1A 00 00 08 7F corresponds to two load coils at distances of 1050 ft. and 2175 ft. from the node.