A setting apparatus according to an aspect of the present invention includes an authenticator configured to authenticate an operator using a setting apparatus, the setting apparatus performing a setting of an I/O module including a plurality of first connectors to which field devices are connectable and a second connector to which a controller controlling the field devices is connectable, and an authorizer configured to assign operation authorization to the operator authenticated by the authenticator on the basis of previously set authorization definition information, the operation authorization allowing the operator to perform at least one operation using the setting apparatus, the authorization definition information including first information and second information, the first information defining whether or not a change of input and output information of the field device connected to each of the first connectors is permitted, the second information defining whether or not a change of each item of the inpu
