LRF-3300S Ultrasonic Transit-time Flow meter
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RTN(cr)(lf)
Return net accumulative flow
±ddddddd.d±d(cr)
RTH(cr)(lf)
Return net accumulative energy(hot)
±ddddddd.d±d(cr)
RT-(cr)(lf)
Return net accumulative energy(cold)
±ddddddd.d±d(cr)
RER(cr)(lf)
Return instantaneous energy value
±d.ddddddE±dd(cr)
RA1(cr)(lf)
Return
analog
input
value
of
AI1
(Temperature, Pressure, etc.)
±d.ddddddE±dd(cr)
RA2(cr)(lf)
Return
analog
input
value
of
AI2
(Temperature, Pressure, etc.)
±d.ddddddE±dd(cr)
RID(cr)(lf)
Return Net address of the instrument
ddddd(cr) 5 bits in length
RSS(cr)(lf)
Return signal intensity
UP:dd.d
，
DN:dd.d
，
Q=dd(cr)
REC(cr)(lf)
Return current error code
*R/*D/*E Note 3
RRS(cr)(lf)
Return Relay Status
ON/OFF(cr)
RDT(cr)(lf)
Current date and time
yy-mm-dd
，
hh:mm:ss(cr)
RSN(cr)(lf)
Return serial number
dddddddt(cr) Note 4
SFQdddd.d(cr)(lf)
OCT setting
dddd.d(cr)
Successful setting will back to “OK”
SCLdd.d(cr)(lf)
Current setting
dd.d(cr)
Successful setting will back to “OK”
SRS(cr)(lf)
Start quantitative control
OK(cr)
Successful setting will back to “OK”
P
Prefix of return command with check
Note 5
W
Networking command prefix of numeric
string address
Note 6
Note:
1.
(cr)expresses carriage return. Its ASCII value is 0DH. (lf) expresses line feed. Its ASCII value is 0AH.
2.
"d" expresses 0-9 number. 0 value is expressed as +0.00.
3.
"d" expresses 0-9 numbers. There is no decimal point in integral part before "E".
4.
dddddddd means the serial number of the instrument, t means the model of the instrument.
5.
The character P can be added before every basic command. It means that the transferred data has CRC
verification. The method of verification is to add all of the data back to the data, which is cumulative and
binary, and its low 8-bit binary data is taken.
E.g. The return information of the RT(cr)(lf) is :+10m3(cr)(lf), (the relative binary system data
is 2BH
，
31H
，
32H
，
33H
，
34H
，
35H
，
36H
，
37H
，
45H
，
2BH
，
30H
，
6DH
，
33H
，
20H
，
0DH
，
