Fukuda FL-286 - Data Transmission Procedures; Transmitting Test Condition Data; Transmitting Test Data and Results

61
RS-232C CONNECTION
● Data Transmission Procedures and Data Composition
• Data is transmitted immediately following the end of the EXH (exhaust) sequence.
• Test condition configuration and readouts are only available while in the RDY state.
1) Receive settings from an external source.
(1) Make sure that the air leak tester is in the RDY state.
＊The RDY state can be confirmed by observing the RDY signal from the REMOTE.
＊No communications can take place outside the ready state. Any input signals will be
ignored.
(2) The following settings are transmitted:
Command GROUP DLY CHG1 CHG2 BAL DET EXH -NGset +NGset
01
Group
Specification
0~3
DLY
Process
time
data
CHG1
Process
time
data
CHG2
Process
time
data
BAL
Process
time
data
DET
Process
time
data
EXH
Process
time
data
-NGset
data
+NGset
data
2 bytes 8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 8bytes
-NGset
(leak
amount)
+NGset
(leak
amount)
P.NGvalue
Volume
value
-NGunit
(leak
amount)
+NGunit
(leak
amount)
Volume
unit
Leak amount
display unit
End
-NGset
(leak
amount)
data
+NGset
(leak
amount)
data
P.NGvalue
data
Volume
Value
data
-NGunit
(leak
amount)
data
+NGunit
(leak
amount)
data
Volume
unit
data
Leak amount
display unit
data
CR/LF
8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 2 bytes
＊ The process time data is expressed without a decimal point (in units of 0.1sec). The 8 byte data
output is right-aligned, and 20h represents blank digits.
Example: 12.3 sec; □□□□123. 1.0sec; □□□□□□10 (where a □ represents 20h)
＊ The settings data is also expressed without a decimal point. If you have an NG error, a (-) will
precede the value.
Example: If you get an –NG error on the FL-286, -1.00kPa; □□□□-100 (It is assumed that the 2
digits beyond the decimal point are fixed on the FL-286).
＊ Your input data should be within the machine’s possible setting range. If you attempt to send data
outside of the range, all data is destroyed.
＊ If CHG1 is not specified, the CHG1 process time is assumed to be 0sec and the data length does not
change.
(3) The air leak tester saves transmitted data.
The data is written into an EEPROM and saved.
＊ The possible data transmission time depends on the number of times the EEPROM can be
rewritten, therefore transmission data cannot be saved after one million transmissions.
＊ If you get a P.NG error, there are two possible values: +0 and -0. “+0” is written as “0” and “-0” is
written as “-0”.
＊ The –NG (leak amount) and test data units used on the leak amount display unit is as follows.
0 1
FL-286 9999 999.9
FL-296 999.9 9999
＊ Set data using volume units
Set dat
a
0 1
Uni
t
L ml