A H 5 0 0 O p e r a t i o n Ma n u a l9 - 6NWCONFIG can also carries out communication through routing.Routing is a function provided by AH500 series CPU modules. It directs packet forwarding. Packet forwarding isthe relaying of packets from their source toward their destination through intermediate nodes. In the figurebelow, the device which actually connects to the computer is AH-01. If the computer wants to connect to AH-03,it can communicate with it through routing, and designates AH-01 as the first station. After the computer sendsa command, the command is transmitted to AH-03 through AH-01 and AH-02.The important points about routing are listed below.(a) Users have to create networks in NWCONFIG, and download the routing tables produced to nodes in thenetworks. Please refer to section 9.2 for more information.(b) AH500 series CPU modules support routing whereas DVP series PLCs and other devices do not supportrouting. Although DVP series PLCs and other devices can not function as intermediate nodes throughwhich packets pass, they can function as destinations to which packets are transmitted.9.1.3.2 Setting Communication ParametersThe steps of setting the communication parameters in NWCONFIG are as follows. Some prerequisites have tobe considered. Please refer to section 2.4 in ISPSoft User Manual for more information(1) Start the communication manager COMMGR, and then create a driver in COMMGR.(2) If users want to download parameters to a single device, upload parameters from a single device, ormonitor a single device, they have to make sure that the device specified is the same as the device whichis actually connected to the computer. If the users want to download parameters to multiple devices,upload parameters from multiple devices, or monitor multiple devices, they have to make sure that thedevices are connected to an Ethernet network, the devices are assigned IP addresses, the IP addressesactually assigned to the devices are the same as the IP addresses set in NWCONFIG, and the networksactually created are the same as the networks created in NWCONFIG.(3) Click Communication Setting on the Tools menu or on the toolbar in the NWCONFIG window.After the users complete the setting described below, they can click OK in the Select a Driver window.
