PFlow Industries D116 User Manual

Revision: 3.0.3
9.3.1 FUJI Protocol
The commun
ication protocol format used by the ultrasonic flowmeter is an expanded set of the Fuji FLV series
flowmeter protocol. The host device requests the flowmeter to answer by sending a
asynchronous communication (Primary station: co
9600BPS. A single byte data format (10 bits): one start bit, one stop bit and 8 data bits. Check bit:
A data character string is used to express basic commands and a carriage return
command. The characteristic is that the string of data is flexible. Frequently used commands are as follows:
Communications commands
Command
Description
DQD(cr)(lf)注
0
Return daily instantaneous flow
DQH(cr)(lf)
Return hourly instantaneous flow
DQM(cr) (lf)
Return instantaneous flow per minute
DQS(cr) (lf)
Return instantaneous flow per second
DV(cr) (lf) Return instantaneous
velocity
DI+(cr) (lf)
Return positive accumulative flow
DI-(cr) (lf)
Return negative accumulative flow
DIN(cr) (lf)
Return net accumulative flow
DID(cr) (lf) Return identification
code of instrument (address code)
DL(cr) (lf) Return signal intensity
DC(cr) (lf)
Return current error code
DT(cr) (lf) Current date and time
LCD(cr) (lf) Return currently
displayed content on LCD display
ESN(cr) (lf)
Return electronic serial number
W
Networking command prefix of numeric string address
P
Prefix of return command with check
&
Function sign of command
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 +0.000000E+00.
"d" expresses 0-
9 numbers. There is no decimal point in integral part before
3. The status of the
machine is expressed by 1
characters. For example, "R" and
"
4. Eight "dddddddd"
expresses the electronic serial number of the machine.
machine.
5. If there are multiple f
lowmeters in a data network then the basic commands cannot be used alone. The
prefix W must be added. Otherwise, multiple flowmeters will answer simultaneously, which will cause
chaos in the system.
Function prefix and function sign
D116
Series Ultrasonic Flowmeter
ication protocol format used by the ultrasonic flowmeter is an expanded set of the Fuji FLV series
flowmeter protocol. The host device requests the flowmeter to answer by sending a
"command"
. The baud rate of
asynchronous communication (Primary station: co
mputer system; Secondary station: ultrasonic flowmeter) is generally
9600BPS. A single byte data format (10 bits): one start bit, one stop bit and 8 data bits. Check bit:
NONE
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:
Description
Data F
ormat
Return daily instantaneous flow
±
d.ddddddE±dd(cr) *1
Return hourly instantaneous flow
±d.ddddddE±dd(cr)
Return instantaneous flow per minute
±d.ddddddE±dd(cr)
Return instantaneous flow per second
±d.ddddddE±dd(cr)
velocity
±d.ddddddE±dd(cr)
Return positive accumulative flow
±dddddddE
±
Return negative accumulative flow
±dddddddE±d(cr)
Return net accumulative flow
±dddddddE±d(cr)
code of instrument (address code)
ddddd(cr)5 bits in length
UP:dd.d,
DN:dd.d
Return current error code
*3
yy-mm-dd,
hh:mm:ss(cr)
displayed content on LCD display
Return electronic serial number
ddddddd(cr)(lf) *4
Networking command prefix of numeric string address
*5
Prefix of return command with check
Function sign of command
"add"
carriage return. Its ASCII value is 0DH. (lf) expresses line feed. Its ASCII value is 0AH.
9 number. 0 value is expressed as +0.000000E+00.
9 numbers. There is no decimal point in integral part before
"E".
machine is expressed by 1
-
6 letters. See the error code section for the meaning of the
"
IH".
expresses the electronic serial number of the machine.
"t"
expresses the type of
lowmeters in a data network then the basic commands cannot be used alone. The
prefix W must be added. Otherwise, multiple flowmeters will answer simultaneously, which will cause
Series Ultrasonic Flowmeter
Page 42 of 53
ication protocol format used by the ultrasonic flowmeter is an expanded set of the Fuji FLV series
. The baud rate of
mputer system; Secondary station: ultrasonic flowmeter) is generally
NONE
.
(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:
ormat
d.ddddddE±dd(cr) *1
±d.ddddddE±dd(cr)
±d.ddddddE±dd(cr)
±d.ddddddE±dd(cr)
±d.ddddddE±dd(cr)
±
d(cr) *2
±dddddddE±d(cr)
±dddddddE±d(cr)
ddddd(cr)5 bits in length
DN:dd.d
,Q=dd(cr)
hh:mm:ss(cr)
ddddddd(cr)(lf) *4
carriage return. Its ASCII value is 0DH. (lf) expresses line feed. Its ASCII value is 0AH.
6 letters. See the error code section for the meaning of the
expresses the type of
lowmeters in a data network then the basic commands cannot be used alone. The
prefix W must be added. Otherwise, multiple flowmeters will answer simultaneously, which will cause

PFlow Industries D116 Specifications

General

Brand	PFlow Industries
Model	D116
Category	Measuring Instruments
Language	English