Panasonic FP7 User Manual page 121

Calculation procedure 3) Calculating the uni communication load factor from the
number of sent/received packets (pps) and sent/received data size
Example 5) When the sent data size is 256 bytes and the received data size is 36 bytes
No. of sent packets (2000 pps) ÷ 10000 pps x 100% = 20%
No. of received packets (125 pps) ÷ 10000 pps x 100% = 1.25%
⇒ The unit communication load factor is (20% + 1.25% = 21.25%).
11.1 Calculation Method of Load Factor
11-3