GE Mark VIe System Manual page 84

3.2.4 I/O Pack Ethernet Addressing
On the IONet, I/O packs are assigned IP addresses through the DHCP servers in the controllers. The Host ID presented to the
DHCP server is based on the board type and serial number information stored on a serial EEPROM located on the terminal
board. Since the Host ID is part of the terminal board, the I/O pack can be replaced without having to update the ToolboxST
application or controller communication IDs.
Note When a terminal board is replaced, the user must associate the new Host ID to the configured device. The ToolboxST
application presents a list of unrecognized devices that have requested IP addresses to simplify this process.
IONets are Class C networks. Each is an independent network with different subnet addresses. The IONet IP host addresses
for the controllers are fixed. The IP addresses of the I/O packs are assigned by the ToolboxST application, and the controller
automatically distributes the addresses to the I/O packs through a standard Dynamic Host Configuration Protocol (DHCP)
server in the controllers.
84 GEH-6721_Vol_I_BP GEH-6721_Vol_I Mark VIe and Mark VIeS Control Systems Volume I
Public Information