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The Leader in Nitrogen Generation Technology
FPS-500 O&M Manual
Revision 2; 3/2020
Page
29
of
30
If any of these sensors start alarming an alarm screen will start which switches at intervals of 1 second
to the current display and it will trigger the buzzer and common alarm contact.
Modbus (RTU) Table for optional sensors:
Function
Data Type
Modbus
RTU
Address
Units/Status
Read/
Write
High oxygen Alarm (Percent)
BOOL
00108
0=Good, 1=Alarm
R
High oxygen Alarm (PPM)
BOOL
00117
0=Good, 1=Alarm
R
Pressure cut-in
Double integer
40144
xxx.x
R/W
Pressure cut-off
Double integer
40146
xxx.x
R/W
Current pressure
Double integer
30139
xxx.x
R
Current oxygen(percent)
Double integer
40294
xxx.xx
R
Current oxygen (PPM)
Double integer
30119
xxxxx
R
Note: all these options can be added all at once on same unit, for more information contact one of our sales
team members.