Emerson Rosemount 702 Quick Start Manual page 26

Quick Start Guide
6.3.1 Setting variable reporting
The Rosemount 702 Wireless Discrete Transmitter has two choices
for variable reporting: Classic - Discrete State Only or Enhanced –
Discrete State and Count.
Procedure
1. In AMS Device Manager, select Configure → Manual Setup →
HART.
2. Set Variable Reporting as desired.
Table 6-4
Table 6-4: Variable Mapping
6.3.2 Latching feature
The Rosemount 702 Wireless Discrete Transmitter has a latching
feature that, when enabled, allows detection of momentary state
changes to be held for a configurable latch period. The latching
feature can be configured to detect either rising or falling state
changes, dependent on the input signal. The latch period (hold time)
can be configured anywhere between 0 seconds and 10 minutes in 1
second increments.
Note
Latching mode is only applicable to input signals.
26
Option
Classic - Discrete
State Only
Enhanced –
Discrete State with
Count
shows the variable mapping for both cases.
Variable PV
reporting
Classic – CH1 State
Discrete
State Only
Enhanced – CH1 State
Discrete
State with
Count
Description
The transmitter will report variables
exactly like the previous version of the
device (measurement option code 22).
The transmitter will provide both current
state of the discrete channels, and
a count of the discrete state change
cycles.
SV
CH2 State
CH2 State
TV QV
Electronics Supply
temperatur voltage
e
CH1 Count CH2 Count
Emerson.com/Rosemount
July 2023