A node is included in a communication control system including a plurality of nodes 31, and a master device 30 for performing flow control of multihop communication in a network including the plurality of nodes 31. To the node 31 in use of second service, a time obtained by subtracting, from a frame period of the network, a total one frame transmission time of each node, used for first service is allocated as one frame transmission time used for second service having a priority set lower than that of the first service.