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Table 2.
Alarm/Status
Codes
L
L
L
C
→
←
!
+
?
M
m
L
¥
R
V
=
⎡
18
Alarm & Status–Codes and Description
I/O Subsystem
Low Lithium Battery Alarm: When
lithium battery voltage is below 2.5 VDC. A new lithium battery
measures approximately 3.6 VDC.
Low Charger: Displayed if the battery charging voltage is less
than 0.4 VDC greater than the battery voltage.
Communications
Transmitting Data:
Receiving Data:
Nak. Negative Acknowledgement w/packet list.
Ack. Positive Acknowledge of receipt of request.
Waiting for Ack. Waiting for response after transmission.
Exception Alarm Processing.
ID Recognized.
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 is selected for this
port.
MODBUS RTU: Modbus RTU protocol is selected for this
port.
Local Protocol: Displayed when PCCU32 port is active and
running Totalflow Local Protocol.
Packet Protocol: Totalflow Packet Protocol is active on this
port.
LevelMaster Protocol: LevelMaster protocol is selected for
this port.
Valve Control
Valve Control: Displayed when the Valve Control option is
installed and no other Valve Control symbols are valid.
Valve Control: Valve Control option installed. Process Value
(PV) is within the user set dead band. No control action
required.
Valve Control: Valve Control option installed. Valve is in full
open position.
Description
L
(low lithium) is displayed;
L
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