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 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 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 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 Gateway and multiple wireless field
devices.
Wireless Plant Network Industrial Wi-Fi network, used to integrate the Wireless Field Network
into the control network.
Glossary Reference Manual
September 2020 00809-0200-4420
64 Emerson.com/Rosemount
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