
Function Code: 03H Modbus response (measurement parameter)
Logic
address
R/W
Item
Number
of Byte
Information
type
Description of data
transmission
Default
value
Note
0031H
R
Measurement
status
2
USHORT
0: Hold status
1
1: Measurement status
0032H
R
Sign byte
6
CHAR
ppm
mg/l
ASCII
code
mg/l
0035H
R
MLSS
measurement
4
FLOAT
MLSS
measurement
0037H-
0050H
Factory reserved
Function Code: 01H Modbus response (dispersion parameter)
Logic
address
Item
BIT
Description
Default value
Note
0070H
LO Alarm
1
Contact on
0 (Contact off)
0071H
Hi Alarm
1
Contact on
0 (Contact off)
0072H
MA too high
1
Contact on
0 (Contact off)
0073H
MA too low
1
Contact on
0 (Contact off)
0074H
Factory reserved
0075H
Exceed MLSS range
1
Contact on
0 (Contact off)
0076H
RLY1 Action *
1
Contact on
0 (Contact off)
0077H
RLY2 Action*
1
Contact on
0 (Contact off)
0078H
Clean Action*
1
Contact on
0 (Contact off)
0079H-
008FH
Factory reserved
51