28
FLOW & PRESSURE SENSOR
( INSTRUCTION MANUAL )
MFP01
Modbus RTU instruction
Error code
Explanation
Operation
0000H
ID Number ( 0 ~ 255 )
Range : 0 ~ 255
Read /
Write
0001H
Baud rate setting
0 : 9600 bps
1 : 19200 bps
2 : 38400 bps
Read /
Write
0002H
Transmission format setting
0 : N.8.1
1 : E.8.1
2 : O.8.1
Read /
Write
0003H
Communications protocol setting
0 : RTU
Read /
Write
0004H
Measured flow rate range
005 : 0 ~ 500 mL/min
010 : 0 ~ 1000 mL/min
050 : 0 ~ 5 L/min
100 : 0 ~ 10 L/min
500 : 0 ~ 50 L/min
101 : 0 ~ 100 L/min
201 : 0 ~ 200 L/min
Read
0005H
Instantaneous flow value
Read
0006H
Flow unit
0 : LPM ( L/min or mL/min )
1 : CFM ( ft
3
/min )
Read /
Write
0007H
Decimal place for flow value
0 : None
1 : One decimal place 0.1
2 : Two decimal places 0.01
3 : Three decimal places 0.001
Read
0008H
Accumulated flow value ( ADL )
XXXX 9999
Read
0009H
Accumulated flow value ( ADH )
9999 XXXX
Read
000AH
Flow reference standard
0 : ANR ( Standard condition )
1 : NOR ( Normal condition )
Read /
Write
000BH
Flow sensor display mode
0 : Instantaneous flow
1 : Accumulated flow
Read /
Write
000CH
Accumulated value hold
0 : None
1 : 2 min/times
2 : 5 min/times
Read /
Write
Error code
Explanation
Operation
000DH
Flow display refresh time
0 : 200 ms
1 : 500 ms
2 : 1000 ms
Read /
Write
000EH
Rated pressure range
3 : -0.100 ~ 1.000 MPa
Read
000FH
Display pressure value
Read
0010H
Pressure unit
0 : kPa
1 : Kgf/cm
2
2 : bar
3 : psi
Read /
Write
0011H
Decimal place for pressure value
1 : One decimal place 0.1
2 : Two decimal places 0.01
3 : Three decimal places 0.001
Read
0012H
Pressure display refresh time
0 : 200 ms
1 : 500 ms
2 : 1000 ms
Read /
Write
0013H
Fine Adjustment Setting
0 : OFF
1 : FLOW SENSOR
2 : PRESSURE SENSOR
Read /
Write
0014H
Fine adjustment of display value
-25 ~ 25 ( -2.5 % ~ +2.5 % )
Read /
Write
0015H
Response time of flow sensor
0 : 50 ms
1 : 80 ms
2 : 120 ms
3 : 200 ms
4 : 400 ms
5 : 800 ms
6 : 1500 ms
Read /
Write
0016H
Response time of pressure sensor
0 : 2.5 ms
1 : 25 ms
2 : 100 ms
3 : 250 ms
4 : 500 ms
5 : 1000 ms
6 : 1500 ms
Read /
Write
0017H
OUT1 corresponding sensor
0 : FLOW SENSOR
1 : PRESSURE SENSOR
Read /
Write