Справочник Пользователя для Canon Model 6401 B
Field Test Unit Software
5. DATA STORAGE FORMAT
Data storage and communications to/from RAM, Cassette tape and RS-232
communication with a host computer conforms to the format detailed
below.
communication with a host computer conforms to the format detailed
below.
5.1 FTU FILE FORMAT
The data file consists of three parts, one HEADER message (Line 1:) one
or more DATA messages (Line 2: onwards) and an END message line.
or more DATA messages (Line 2: onwards) and an END message line.
1
HEADER message which contains information about the file.
1 or more DATA messages which contain the actual data.
1
1
END message which terminates the file.
5.1.1 HEADER Message Format
The HEADER message is generated by a BASIC ‘PRINT’ statement and
read
by a BASIC ‘INPUT’ statement.
The HEADER information is used to describe the file and its contents,
Fields are separated by commas. (The message is terminated with a C/R L/F
sequence.)
Fields are separated by commas. (The message is terminated with a C/R L/F
sequence.)
HEADER message - Line 1:-
filename,ext,cycle,time,filesize
C/R L/F
Where:-
filename
= Name of the data file
ext
= Filename extension
cycle
= Data Logger cycle time in seconds (usually 5)
time
= Time and Date in logger
(locn 4. Data Logger format)
cycles past 1JAN80
filesize
= Size file in bytes (excluding this HEADER Line 1:
but including all DATA messages and the END line)
Section 5. DATA STORAGE FORMAT
25