of the parameter of the second field device 22 stored in step s 3 is replaced with the value of the parameter of the first field device 21 and the process proceeds to step s 48 in step s 44 it is determined whether there is a parameter of the second field device 22 associated with the selected parameter of the first field device 21 with reference to the association of the parameter stored in the receiving unit 15 if the determination result in step s 44 is u201c yes u201d the process proceeds to step s 45 if the determination result in step s 44 is u201c no u201d the process proceeds to step s 46 in step s 45 the value of the parameter of the second field device 22 associated with the selected parameter of the first field device 21 is replaced with the value of the parameter of the first field device 21 and the process proceeds to step s 48 in step s 46 an operation of designating the parameter of the second field device 22 to be associated with the selected parameter of the first field device 21 is received and the process proceeds to step s 47 in this case the receiving unit 15.