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Reference Manual
00809-0200-4420, Rev GA
Section 7: Glossary
April 2013
Glossary
Term
Definition
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.
Network I.D.
Numeric code that associates wireless field devices to the Gateway. This
code must be identical in the device and the gateway.
Network Manager
Operational function within the Smart Wireless Gateway that
automatically handles all device connections and scheduling of wireless
data.
NTP
Network Time Protocol. Used to keep the system time synchronized
with a network time server.
Path
A wireless connection between two devices in a wireless network. Also
referred to as a hop.
Path Stability
A measure of connectivity between two devices in the wireless network.
Calculated as the ratio of the number of received messages over the
number of expected messages.
Primary Interface
Ethernet 1 or Fiber Optic port that is used for primary host
communications.
Private Network/LAN
A local connection between a Smart Wireless Gateway and a PC/Laptop.
This network is used for commissioning and configuration of the
Gateway.
Reliability
A measure of connectivity between the Gateway and a wireless field
device. Calculated as the ratio of the number of received messages over
the number of expected messages. Takes into account all paths.
RSSI
Received signal strength indication (dBm) for the wireless field device.
Secondary Interface
Ethernet 2 port that is used for backup connection or a maintenance
port for local access.
Security Setup Utility
A software application that enables secure communications between
the Gateway and host system, asset management software, data
historians, or other applications.
Self-Organizing Network
Mesh network technology in which a network manager automatically
handles all device connections and scheduling of wireless data.
Service Denied
The device has been denied bandwidth and can not publish its regular
updates.
TCP/IP
Transmission Control Protocol / Internet Protocol. The protocol that
specifies how data is transmitted over Ethernet.
Update Rate
The interval in which a wireless field device transmits measurement and
status data to the Gateway. Same as Burst Rate.
Wireless Field Device(s)
WirelessHART field devices that are a part of the wireless field network.
Wireless Field Network
WirelessHART network, consisting of Smart Wireless Gateway and
multiple wireless field devices.
Wireless Plant Network
Industrial WiFi network, used to integrate the Wireless Field Network
into the control network.
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