UFM UFM-40, Installation & Operating Instructions Manual

Page: 41 / 51

Page 41 of 51
A data character string is used to express basic commands and a carriage return (ENTER) is used to express the
end of a command. The characteristic is that the string of data is flexible. Frequently used commands are as
follows:
Communications commands
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.
"d" expresses 0-9 numbers. There is no decimal point in integral part before "E".
3. The status of the machine is expressed by 1-6 letters. See the error code section for the meaning of the
characters. For example, "R" and "IH".
4. Eight "dddddddd" expresses the electronic serial number of the machine. "t" expresses the type of
machine.
Command Description Data Format
DQD(cr)(lf)
注
0 Return daily instantaneous flow ±d.ddddddE±dd(cr) *1
DQH(cr)(lf) Return hourly instantaneous flow ±d.ddddddE±dd(cr)
DQM(cr) (lf) Return instantaneous flow per minute ±d.ddddddE±dd(cr)
DQS(cr) (lf) Return instantaneous flow per second ±d.ddddddE±dd(cr)
DV(cr) (lf) Return instantaneous velocity ±d.ddddddE±dd(cr)
DI+(cr) (lf) Return positive accumulative flow ±dddddddE±d(cr) *2
DI-(cr) (lf) Return negative accumulative flow ±dddddddE±d(cr)
DIN(cr) (lf) Return net accumulative flow ±dddddddE±d(cr)
DID(cr) (lf)
Return identification code of instrument
(address code)
ddddd(cr)5 bits in length
DL(cr) (lf) Return signal intensity UP:dd.d,DN:dd.d,Q=dd(cr)
DC(cr) (lf) Return current error code *3
DT(cr) (lf) Current date and time yy-mm-dd,hh:mm:ss(cr)
LCD(cr) (lf)
Return currently displayed content on
LCD display
ESN(cr) (lf) Return electronic serial number ddddddd(cr)(lf) *4
W
Networking command prefix of numeric
string address
*5
P Prefix of return command with check
& Function sign of command "add"
UFM-40 Ultrasonic transit-time flowmeter