Glossary Of Terms - Numatics G3 Series Technical Manual

16.4

Glossary of Terms

The following is a list and description of common terms and symbols used throughout this document:
Term
Address
A protocol used to set an IP address using a MAC Address hardware address. This can be done in the
Resolution
command prompt window.
Protocol (ARP)
Bit Smallest unit of digital information either a "0" or "1"
Bit Mapping Chart showing which bit is connected to which physical input or output point.
Bootstrap
A protocol used to set an IP Address, Subnet Mask, and Gateway using a server.
Protocol (BOOTP)
Broadcast A transmission method that sends packets to multiple unspecified devices.
Byte 8 bits (1/2 word)
Comm. Fault One or more of the I/O connections have timed out.
DLR Device Level Ring
Discrete I / O The inputs / outputs that are available via the "Discrete I/O" side of manifold.
Dynamic Host
Configuration A protocol used by a node to obtain an IP Address, Subnet Mask, and Gateway Address from a server.
Protocol (DHCP)
Electronic Data Sheet. A text file, which contains specific product information, definitions of product
EDS File
capabilities and configurable parameters necessary for operation on an EtherNet/IP
Explicit
Messaging that sends data to perform request/response functions.
Messaging
Ground This term is used to indicate an earth or chassis ground.
I/O Any combination of inputs and outputs
Idle A zero (0) length poll message (i.e.: scanner in program mode)
IGMP Snooping See Implicit Messaging
Implicit
A function that that can control I/O messaging to another I/O device.
Messaging
Internet Group
A protocol used to keep local switches informed in a multicast group. Nodes that leave the group will no
Management
longer be sent packets of information from switches and routers.
Protocol (IGMP)
Layer 2
The data layer that physically refers to the frame format and addressing. A layer 2 address is an Ethernet
(data link layer
address.
or level)
Layer 3
(network layer or The data layer that refers to IP and the IP packet format. A layer 3 address is an IP address.
level)
A group of nodes with different MAC addresses. Segments connected by repeaters make a link. Links that
Link
are connected by routers make up a network.
MAC Address Media Access Connection Address
Multicast A transmission where a packet is sent to all possible nodes of a certain subset.
G3 Series EtherNet/IP
TDG3EDM1-6EN
Subject to change without notice
www.asco.com/g3
TM
DLR Technical Manual
Description
3/18
TM network.
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