A networking standard that supports data transfer rates up to 100 Mbps (100 megabits per second). 100BASE-T is based on the older Ethernet standard. Because it is 10 times faster than Ethernet, it is often referred to as Fast Ethernet. Officially, the 100BASE-T standard is IEEE 802.3u

One of several adaptations of the Ethernet (IEEE 802.3) standard for Local Area Networks (LANs). The 10Base-T standard (also called Twisted Pair Ethernet) uses a twisted-pair cable with maximum lengths of 100 meters.

Cables in the 10Base-T system connect with RJ-45 connectors. A star topology is common with 12 or more computers connected directly to a hub or concentrator.

The 10Base-T system operates at 10 Mbps and uses baseband transmission methods

Acknowledgement

Address Resolution Protocol. A network layer protocol used to determine the physical address which corresponds to the IP address for a host on the network. ARP is a sub-protocol which operates under TCP/IP.

Abstract Syntax Notation. Grammar used to define a protocol (OSI scope)

A block consists of two or more registers.

BOOTstrap Protocol. A protocol used at power-up in order to get an IP address which is provided by a BOOTP server and is based on the module’s MAC address.

Bits per second.

A device that connects two or more physical networks which use the same protocol. Bridges read frames and decide whether to transmit or block them based on their destination address.

A computer process requesting service from other computer processes.

A software package that facilitates controller configuration.

The IP address of the network or host to which all packets addressed to an unknown network or host are sent. The default gateway is typically a router or other device.

Dynamic Host Configuration Protocol. An improved version of BOOTP.

Host on the network obtaining its configuration from a DHCP Server.

Server providing configuration parameters to a DHCP Client.

Domain Name System. A protocol within TCP/IP used to find IP addresses based on host names

An embedded Web server which the user customizes, permitting user access to controller diagnostics and Ethernet configuration.

Fast Device Replacement

A logical grouping of contiguous bits that convey one kind of information, such as the start or end of a message, an address, data, or an error check.

Non volatile memory

A group of bits which form a discrete block of information. Frames contain network control information or data. The size and composition of a frame is determined by the network technology being used.

Two common framing types are Ethernet II and IEEE 802.3SNAP.

File Transfer Protocol. The protocol (over TCP) used to read or write a file into a remote station (the FTP server side).

A device which connects networks with dissimilar network architectures and which operates at the Application Layer. This term may refer to a router.

(HDX) A method of data transmission capable of communication in two directions, but only one direction at a time.

A node on a network.

A domain name given to a specific computer on a network and used to address that computer.

A domain name given to a specific computer on a network and used to address that computer.

A device which connects a series of flexible and centralized modules to create a network.

One or two (depending on the system type) Remote I/O Channels consisting of a fixed number of I/O points.

An area in the controller configuration memory used to map input and output points. Previously called traffic cop.

A procedure the processor follows to monitor inputs and control outputs.

A configuration table which identifies the targets with which repetitive communication is authorized.

Software component which is in charge of scanning Ethernet based Momentum IO in order to get inputs and set outputs.

Internet Control Message Protocol. A protocol within TCP/IP used to report errors in datagram transmission.

A unique identifier assigned to every Ethernet device Also called the MAC Address. This is the hardware address of the device. The address is assinged at the factory.

Internet Protocol. A common network layer protocol. IP is most often used with TCP.

Internet Protocol Address. A 32-bit address assigned to hosts using TCP/IP.

In the OSI model, a portion of the structure of a device which provides defined services for the transfer of information.

In the sense of network communication: Existing Components (PLC products or Momentum 170ENT11000x.) that do not provide special (hardware) support for Control Intranet.

Media Access Control address. The hardware address of a device. A MAC address is assigned to an Ethernet TCP/IP module in the factory. The MAC address is also called the IEEE Global Address.

Modbus Application Protocol

Management Information Base. Database that holds the configuration of a SNMP enabled device.

A serial communication protocol that allows Modicon controllers with intelligent terminals, I/O, Motor Drivers, other equipment, and computers to communicate over a common carrier or dedicated lines.

A communication protocol that sits on the Ethernet protocol layer.

A special instruction that uses ladder logic to read and write controller information.

A function block in ladder logic that allows communication on various networking mediums.

Protocol Data Unit exchanged at layer N level (OSI model)

Network Data Delivery Services.

Interconnected devices sharing a common data path and protocol for communication.

An addressable device on a communications network.

An acronym for the Schneider Electric application: Network Options Ethernet Tester

An acronym that appears on some Web pages and may indicate that the system is operating incorrectly. Schneider Electric recommends immediate diagnosis of the situation and determine the cause for the message appearing.

Object Information True / Object ID (identify OIT) Contain databases managing SNMP (MIBs)

Open System Interconnection model. A reference standard describing the required performance of devices for data communication. Produced by the International Standards Organization.

The unit of data sent across a network.

Packet Internet Groper. A program used to test whether a destination on a network can be reached.

Programmable Logic Controller

An access point for data entry or exit within a host using TCP services.

The well-defined port, as defined by the Internet Assigned Numbers Authority (IANA), for Modbus TCP/IP communications as described in the RFC 1060.

The well-defined port, as defined by the Internet Assigned Numbers Authority (IANA), that is used for world wide for HTTP traffic as described in the RFC 1060.

Describes message formats and a set of rules used by two or more devices to communicate using those formats.

A device that connects two sections of a network and conveys signals between them without making routing decisions or filtering packets.

A device that connects two or more sections of a network and allows information to flow between them. A router examines every packet it receives and decides whether to block the packet from the rest of the network or transmit it. The router will attempt to send the packet through the network by the most efficient path.

I/O communication between the adapter and I/O base is disabled. The outputs go to their reset state.

Provides services to clients. This term may also refer to the computer on which the service is based.

Simple Network Management Protocol

The association of a port with an IP address, serving as an identification of sender or recipient.

The software code which implements the protocol being used. In the case of the NOE modules it is TCP/IP.

Shielded Twisted Pair. A type of cabling consisting of several strands of wire surrounded by foil shielding, twisted together.

A physical or logical network within an IP network, which shares a network address with other portions of the network.

Shielded Twisted Pair. A type of cabling consisting of several strands of wire surrounded by foil shielding, twisted together.

A network device which connects two or more separate network segments and allows traffic to be passed between them. A switch determines whether a frame should be blocked or transmitted based on its destination address.

Schneider Electric recommends that you use switches in your automation network.

Transmission Control Protocol.

Transmission Control Protocol/Internet Protocol. A protocol suite consisting of the Transmission Control Protocol and the Internet Protocol; the suite of communications protocols on which the Internet is based.

Uniform Resource Locator. The network address of a file.

Worldwide interconnection of stations based on Internet protocols. The most famous one is HTTP (Web server).

World Wide Web. A hypertext-based, distributed information system in which clients and servers are freely available.