Acknowledgement

On a network, the identification of a station. In a frame, a grouping of bits that identifies the frame’s source or destination.

Application Program Interface. The specification of functions and data used by one program module to access another; the programming interface that corresponds to the boundary between protocol layers.

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

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

BOOTstrap Protocol. A protocol used at power-up in order to get an IP address that 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 that use the same protocol. Bridges read frames and decide whether to transmit or block them based on their destination address.

Board Support Package. A software package that maps a specific real-time operating system (RTOS0 onto a specific hardware.

A computer process requesting service from other computer processes.

Provides data transfer between two or more NOE 771 xx controllers on a TCP/IP network.

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 that the user customizes, permitting user access to controller diagnostics and Ethernet configuration.

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.

A gateway that controls access to a network or an application.

A group of bits that 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 802.3.

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

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

Service of inter PLC synchronization (shared databases).

(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 that 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 that identifies the targets with which repetitive communication is authorized.

Software component that 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.

The global interconnection of TCP/IP based computer communication networks.

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 that provides defined services for the transfer of information.

In the sense of network communication: Existing Components (PLC products etc.) 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.

Modbus Application Protocol

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

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

A communication system that links Modicon controllers with intelligent terminals and computers over common carrier or dedicated lines

Negative acknowledgment indicating an error.

Network Data Delivery Services.

The logical name of a network.

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

An addressable device on a communications network.

Network Time Protocol. A protocol used to synchronize the time of a client or server to the time of another server or referenced source like a satellite receiver.

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.

Software that allows you to configure data blocks to be transferred between controllers on a Modbus Plus 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.

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.

Request For Comment. Paper identified by a number in Internet world. They define the state of art regarding Internet protocols (ruled by IETF = Internet Engineering Task Force) http://www.ietf.org

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.

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

Simple Mail Transfer Protocol. A common protocol used to transfer e-mail messages.

Simple Network Management Protocol

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

The software code that 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 that shares a network address with other portions of the network.

A bit mask used to identify or determine which bits in an IP address correspond to the network address and which bits correspond to the subnet portions of the address. The subnet mask is the network address plus the bits reserved for identifying the subnetwork.

A network device that 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.

Transmission Control 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.

Transparent Factory is a Schneider Electric initiative to bring Internet technologies to the factory floor to "information enable" Schneider Products to provide easy "transparent" access to plant operational data over open networks with open tools. Interfacing with products from other manufacturers for similar access, customers can expect improved methods for monitoring and controlling factory processes at reduced costs.

A Schneider Electric product line based on universal Ethernet TCP/IP and Web technologies. These industrial automation products (Trademark Telemecanique) and electrical distribution products (TrademarkMerlin Gerin) can be integrated into real-time data sharing systems with no need for interfaces. The product line includes Sensor and preactuator type field products (simple or intelligent), controllers and PLCs, HMI applications, and dedicated gateways and servers.

User Datagram Protocol. A protocol that transmits data over IP.

Télémecanique unified application protocol (used in S7, Premium, and Micro PLC ranges).

Uniform Resource Locator. The network address of a file.

Unshielded Twisted Pair. A type of cabling consisting of insulated cable strands that are twisted together in pairs.

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.