24
SJE-Rhombus VFDC-4100 Controller User Manual
ModBus Communication Functions & Address Code
Functions
Description
W/R
ADDR. (Hex)
ADDR. (Dec.)
Data information
Parameter Setup
Pressure setup
1: set pressure
W
8201
33,281
2: set pressure 2
W
8202
33,282
3: high pressure limit
W
8203
33,283
4: low pressure limit
W
8204
33,284
Parameter Check
Low water
low water error
R
7002
28,674
128:low water, 000:no error
Pump Run state
VFD1 run
R
700A
28,682
01: VFD1 running
VFD2 run
R
02: VFD2 running
VFD3 run
R
04: VFD3 running
VFD4 run
R
08: VFD4 running
Current pressure
R
700B
28,683
current pressure
Set pressure
R
700C
28,684
set pressure
Run state
R
700D
28,685
0x05: start, 0x04: stop
Error fl ag
error fl ag
R
700E
28,686
001: high pressure
R
002: low pressure
R
004: VFD1 fault/HOA
R
008: VFD2 fault/HOA
R
016: VFD3 fault/HOA
R
032: VFD4 fault/HOA
R
064: low water alarm
R
128: low pressure alarm
R
256: sensor open
R
512: sensor short
R
1024: low water stop
Time setup
1: year
R
8001
32,769
2xxxx
2: month
R
8002
32,770
xx
3: day
R
8003
32,771
xx
4: week
R
8004
32,772
xx
5: hour
R
8005
32,773
xx
6: min
R
8006
32,774
xx
7: sec
R
8007
32,775
xx
Pump setup
1: lead pump
R
8101
33,025
0 ~ 3 / 0:PUMP1, 3:PUMP4
2: pump1
R
8102
33,026
0:not used , 1:used
3: pump2
R
8103
33,027
0:not used , 1:used
4: pump3
R
8104
33,028
0:not used , 1:used
5: pump4
R
8105
33,029
0:not used , 1:used
Pressure setup
1: set pressure
R
8201
33,281
set pressure
2: set pressure 2
R
8202
33,282
set pressure 2
3: high pressure limit
R
8203
33,283
High Pressure Limit
4: low pressure limit
R
8204
33,284
Low Pressure Limit
5: start lead press
R
8205
33,285
Start Lead Pressure
6: start lag press
R
8206
33,286
Start Lag Pressure