Operating Modes - ABB AWT420 Commissioning Instructions

AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | C I/A W T4 2 0 - E N R E V. B

Operating modes

In operating mode, process values (PVs) from connected
sensors are displayed on Operator Pages. A maximum of 3
Operator Pages can be displayed.
Operator Page 1 (the default page) displays the PVs from all
connected sensors simultaneously (a maximum of 2 sensors
can be connected). The remaining 2 Operator pages display
values from individual sensors (in sensor order).
In Figure 20, Operator page 1 shows that 2 sensors are
connected (pH and turbidity).
Instrument tag
(user-assignable)
Sensor tag
(user-assignable)
Chemical units
Operator menu icon –
see page 28
Autoscroll icon –
see page 28
*The highest priority diagnostic or alarm is displayed.
Other active diagnostic/alarm states can be viewed on the Diagnostics View – see page 22.
Figure 20 Operator Page (multiple sensors)
AWT420
TAG 1
pH
TAG 1
62.38
Turbidity
S1: Cleaning
Diagnostic message or alarm tag* –
see page 64 for diagnostic messages
NAMUR (NE107) Status Icons
Failure High Process Alarm
Maintenance Low Process Alarm
Out of Spec High Latch Alarm
Check Function Low Latch Alarm
03-09-2019
Time and date
14:33:12
Chemical units
4.98
pH
Process value (PV)
NTU
Calibration shortcut icon –
CAL
see page 28
21