View Mode; Diagnostics View; Signals View; Chart View - ABB AWT420 Operating Instruction

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 | O I/A W T4 2 0 - E N R E V. B

View mode

Pages displayed in View mode comprise:
• Diagnostics View – displays a list of active diagnostic
messages identified by priority and message –
see Figure 17
• Signals View – displays a list of active signals and
their values (1 page per sensor) – see Figure 23
• Chart View – represents the sensor readings as a
series of color-coded traces – see Figure 24
• Alarms View – displays a list of alarms, source and
status – see Figure 25
• Outputs View – displays a list of the analog outputs,
output value and percentage of output value –
see Figure 26

Diagnostics View

NAMUR icon and message
priority – see page 83
Diagnostic message
Diagnostics View
No . Message
PV Failure
01
NV Error
O2
Cal. Failed
O3
Cleaning
O4
Figure 22 Diagnostics View

Signals View

Signal value
Signals View
S1 :RDO
Signal
Dissolved Oxygen
type
D.O. %Saturation
Temperature
Active Slope
Active Offset
RDO Cap Expiry
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Figure 23 Signals View
View icon
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08:10:11
CAL
Units
04-09-2019
08:10:11
Value Units
ppm
8.201
%
136.01
°C
24.0
1.055
ppm
0.000
weeks
22.2
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CAL

Chart View

Color-coded trace
(1 for each sensor)
Chart View
Ch1
Sensor ID
3.1
(color-coded)
06:54:32
04-09-2019
Figure 24 Chart View

Alarms View

Alarms View
ID Setpoint
Setpoint
A1 7.0 ppm
Alarm ID A2 7.4 ppm
A3
– – – –
– – – –
A4
– – – –
A5
A6 – – – –
A7 – – – –
A8 – – – –
Alarm acknowledge status (Y/N)
Figure 25 Alarms View

Outputs View

Output value
Outputs View
ID Output
Analog
AO1 6.57 mA
output ID
AO2 4.00 mA
AO3
4.00 mA
AO4
4.00 mA
Figure 26 Outputs View
Process value
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08:52:03
50.0
37.5
25.0
12.5
0.0
07:24:32 07:54:32
04-09-2019 04-09-2019
CAL
Trace time/date
Alarm source Alarm status
04-09-2019
08:11:45
Source Status Ack
S1
S2
CAL
% of output value
04–09–2019
10 : 31: 27
Percent
16.1 %
0.0 %
0.0 %
0.0 %
CAL
29