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Glossary
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890USE19600 April 2004
ARP address resolution protocol. The IP network layer protocol, which uses ARP to map
an IP address to a MAC (hardware) address.
auto baud The automatic assignment and detection of a common baud rate as well as the
ability of a device on a network to adapt to that rate.
auto-addressing The assignment of an address to each island bus I/O module and preferred device.
auto-
configuration
The ability of island modules to operate with predefined default parameters. A
configuration of the island bus based completely on the actual assembly of I/O
modules.
basic I/O Low-cost Advantys STB input/output modules that use a fixed set of operating
parameters. A basic I/O module cannot be reconfigured with the Advantys
configuration software and cannot be used in reflex actions.
basic network
interface
A low-cost Advantys STB network interface module that supports a single segment
of up to 12 Advantys STB I/O modules. A basic NIM does not support the Advantys
configuration software, reflex actions, island bus extensions, nor the use of an HMI
panel.
basic power
distribution
module
A low-cost Advantys STB PDM that distributes sensor power and actuator power
over a single field power bus on the island. The bus provides a maximum of 4 A total
power. A basic PDM requires one 5 A fuse to protect the I/O.
BootP bootstrap protocol. A UDP/IP protocol that allows an internet node to obtain its IP
parameters based on its MAC address.
BOS beginning of segment. When more than one segment of I/O modules is used in an
island, an STB XBE 1200 BOS module is installed in the first position in each
extension segment. Its job is to carry island bus communications to and generate
logic power for the modules in the extension segment.
bus arbitrator A master on a Fipio network.
B