Emerson Rosemount 702 Quick Start Manual page 26

Quick Start Guide
5.5 Discrete output switch functionality
The discrete output of the Rosemount 702 Transmitter is driven by the host
control system, through the Smart Wireless Gateway, and out to the
Rosemount 702 Transmitter. The time required for this wireless
communication from the Gateway to the Rosemount 702 Transmitter is
dependent on many factors, including the size and topology of the network
and the total amount of downstream traffic on the wireless network. For a
network that is constructed to our best practices, typical delays in
communication of a discrete output from the Gateway to the Rosemount
702 Transmitter are 15 seconds or less. Remember that this delay is only part
of the latency that well be observed in a control loop.
Note
The output switch functionality of the Rosemount 702 Transmitter requires
that the network is managed by a version 4 Smart Wireless Gateway, with
v4.3 or greater firmware installed.
Figure 5-7:
A. LOAD
B. OUTPUT
26
Output Circuit Wiring
Rosemount 702 Wireless Discrete Transmitter
April 2018