South-Tek Systems N2-BLAST FPS-500, Руководство по эксплуатации и обслуживанию

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FPS-500 O&M Manual
Revision 2; 3/2020 Page 19 of 30
7.8. Communication
(1) (Modbus RTU)
Modbus (RTU) is optional feature our generator offers to our customer to monitor the unit
from BMS (Building Management System).
MODBUS communication can be set up to retrieve real time data. The nitrogen generator
MODBUS Communication settings are as follows:
-
Protocol: RTU
-
Slave ID: 1
-
PLC Controller: Slave
-
Bud rate: 119200
- Data Bits: 8
-
Parity: none
-
Stop Bits: 2
See MODBUS addressing table below:
Function Data Type
Modbus RTU
Address
Units/Status
Read/
Write
Running / Standby BOOL 00012 0=Standby, 1=Running R
Common Alarm BOOL 00004 1=Good, 0=Alarm R
BlastOff Alarm BOOL 00015 0=Good, 1=Alarm R
Bypass Alarm BOOL 10005 1=Good, 0=Alarm R
Filter Alarm BOOL 00029 0=Good, 1=Alarm R
Filter Reset Confirm BOOL 00031 0=Good, 1=Alarm R
Filter Hours Register 40019 xxxxx.x / hours R
(2) Analog output (
4-20 OUT
)
Another useful and optional feature of (FPS) Reliable System units an analog signal
output (4-20 mA) for current readings of different data points as follow:
(i)
Ambient temperature “
4-20 out dEGr.F
”
(ii)
Oxygen content (percent) “
4-20 out p.CEnt
”
(iii)
Oxygen content (ppm) “
4-20 out trACE
”
(iv)
Supply Pressure “
4-20 out prEss
”