Chapter 11 DeviceNet Remote I/O Module AHRTU-DNET AHRTU-DNET-5A supports maximum 1 main rack, 7 extension racks and 68 I/O modules. See the figure of connection of the racks as below. Note: AHRTU-DNET-5A must be installed to the CPU interface and AHPS05-5A power supply module can only be mounted to the POWER slot and I/O modules are mounted to the I/O slots only. Or else, the device may be damaged. AH10SCM-5A can only be installed to I/O slot of the main rack. Otherwise, it can not work normally. As for the extension rack connection, please follow the order that the first port on the extension rack is to connect last rack and the second port is to connect the next rack.
AHRTU-DNET-5A supports maximum 1 main rack, 7 extension racks and 68 I/O modules. 11-9