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An application can be assigned to an annunciator, and any alarms or status codes
associated with that application will be displayed.
Indicator
Description
Low Lithium Battery Alarm: When displayed, the lithium battery voltage is
L
below 2.5 VDC. If battery voltage is above 2.5 VDC, A1 appears shaded. A
L
new lithium battery measures approximately 3.6 VDC.
Low Charger: This is displayed if the G4 EX battery charging voltage is less
L
than (+)0.4 VDC higher than the battery voltage. If charging voltage is (+)0.4
C
VDC greater than the battery voltage, the annunciator is shaded.
A to D Failure: Displayed if the A to D Converter absolute differential pressure,
absolute static pressure or temperature readings exceed maximum counts or
A
D
are less than the minimum counts. If the A to D Converter readings are within
range, AD is shaded.
Transmitting Data: Sending a response.
Receiving Data: Processing request.
!
Nak: Negative Acknowledgement w/packet list.
+
Ack: Positive Acknowledgement of receipt request.
Waiting for ACK: Waiting for response after transmission.
?
Exception Alarm Proceeding.
ID Recognized: Recognized and receiving request.
Listen Cycle: Flashes if this remote port is active and running Totalflow
Remote Protocol. Flashes in sync with listening cycle that occurs at 1, 2 or 4
second intervals.
MODBUS ASCII: MODBUS ASCII protocol selected for the port assigned to
M
this annunciator.
MODBUS RTU: MODBUS RTU protocol is selected for the port assigned to
m
this annunciator.
¥
ID Recognized: The ID has been recognized but is waiting for Sync.
2104349 rev. AD
Figure 5–2 LCD and indicators
Table 5–1 Visual alarm codes
I/O Subsystem
Measurement Application
Communication Protocols
Alarm
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
N
Page 5–3
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Troubleshooting
