Rosemount Smart Wireless Gateway Specifikace stáhnout pdf (Strana 57)

Reference Manual

00809-0200-4420, Rev HB

Section 7: Glossary

January 2015

Glossary

Section 7 Glossary

This glossary defines terms used throughout this manual or that appear in the web interface of

the Smart Wireless Gateway.

Term Definition

Access Control List A list of all devices that are approved to join the network. Each device will

also have a unique join key. Also referred to as a white list.

Active Advertising An operational state of the network manager that causes the entire

wireless field network to send messages looking for new or unreachable

devices to join the network.

Baud Rate Communication speed for Modbus

RTU.

Burst Rate The interval in which a wireless field device transmits measurement and

status data to the Gateway. Same as Update Rate.

Certificate A digital signature used to authenticate a client/server while using

encrypted communications.

Connectivity Typically refers to a combination of communication statistics and link

reliability of a wireless field device. May also refer to the connection

between the Gateway and the Host System.

Device ID A hexidecimal number that provides unique device identification.

DHCP Dynamic Host Configuration Protocol: Used to automatically configure the

TCP/IP parameters of a device.

Domain A unique designator on the internet comprised of symbols separated by

dots such as: this.domain.com

Gateway Refers to the Smart Wireless Gateway.

HART Tag The device’s electronic tag that the Gateway uses for all host integration

mapping. Refers to the HART

long tag (32 characters, used for HART 6 or

7 devices) or the HART message (32 characters, only used for HART 5 wired

devices connected via a WirelessHART adapter)

Host Name A unique designator in a domain associated with the IP address of a device

such as: device.this.domain.com. In that example the hostname is device.

HTML Hyper Text Markup Language: The file format used to define pages viewed

with a web browser.

HTTP Hyper Text Transfer Protocol: The protocol that defines how a web server

sends and receives data to and from a web browser.

HTTPS HTTP over an encrypted Secure Sockets Layer (SSL)

Join Failure When a wireless field device fails to join the WirelessHART

network. Most

join failures are due to security reasons (missing or incorrect join key, not

on access control list, etc.)

Join Key Hexadecimal security code that allows wireless field devices to join the

wireless field network. This code must be identical in the device and the

Gateway.

Latency The time from when a message leaves a wireless field device until it reaches

the Gateway.

Netmask A string of 1's and 0's that mask out or hide the network portion of an IP

address leaving only the host component.

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