supporting Sequence of Events

Publication 1732E-UM002A-EN-P - March 2010
102 Glossary
Gateway address
The default address of a network or website. It provides a single domain name
and point of entry to the site.
half-duplex
A communication link in which data transmission is limited to one direction at
a time.
hard disk
A storage area in a personal computer that may be used to save processor files
and reports for future use.
high byte
Bits 8...15 of a word.
IANA
Internet Assigned Numbers Authority. An division of the Internet
Corporation for Assigned Names and Numbers (ICANN) that maintains
top-level domain, IP address and protocol number databases.
input device
A device, such as a push button or a switch, that supplies signals to the input
circuits of the controller.
inrush current
The temporary surge current produced when a device or circuit is initially
energized.
instruction
A mnemonic and data address defining an operation to be performed by the
processor. A rung in a program consists of a set of input and output
instructions. The input instructions are evaluated by the controller as being
true or false. In turn, the controller sets the output instructions to true or false.
instruction set
The set of general purpose instructions available with a given controller.
IP address
An Internet Protocol address is the logical network address of a network
module. This IP address uniquely identifies devices on a TCP/IP network.