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Attached File Transfer Times Section 2-7
Note The TXT file format is compatible with the CPU Unit's READ DATA FILE and
WRITE DATA FILE instructions (FREAD and FWRIT) set to tab-delimited
word format with a carriage return every 10 words.
CSV Format When hexadecimal I/O memory data (1234, 5678, 9ABC, etc.) is being sent
as an attached file in CSV format, the data is stored with the following proce-
dure.
1. The word data is converted to ASCII.
2. The word data is delimited by commas (“,”: 2C).
3. A return and line feed ([CR][LF]: 0D0A) are inserted after every 10 words.
Note The CSV file format is compatible with the CPU Unit's READ DATA FILE and
WRITE DATA FILE instructions (FREAD and FWRIT) set to comma-delimited
word format with a carriage return every 10 words.
2-7 Attached File Transfer Times
When sending an attached file with the Mail Send Function, the access time
can be as long as 30 or 40 minutes for a very large file. The following tables
show how long the CPU Unit's memory will be accessed by the Ethernet Unit
(how long the Accessing Memory/Sending Mail Flag will be ON).
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9
+0 1234
5678
9ABC DEF0 1234 5678 9ABC DEF0 1234
5678
+10 9ABC
DEF0
1234 5678 9ABC DEF0 1234 5678 9ABC
DEF0
31 32 33 34
09
35 36 37 38 09 39 41 42 43
09
123
4
[HT] 5 6 7 8 [HT] 9 A B C
[HT]
35 36 37
38
0D 0A 39 41 42 43 09
56
7
8
[CR] [LF] 9 A B C
[HT]
1234@5678@9ABC@DEF0@1234@5678@9ABC@DEF0@1234@5678@
9ABC@DEF0@1234@5678@9ABC@DEF0@1234@5678@9ABC@DEF0
The @ character represents a hard tab and displayed as a tab in text displays.
I/O memory contents
TXT file contents
Contents of TXT file when displayed
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9
+0 1234
5678
9ABC DEF0 1234 5678 9ABC DEF0 1234 5678
+10 9ABC
DEF0
1234 5678 9ABC DEF0 1234 5678 9ABC DEF0
31 32 33 34 2C 35 36 37 38 2C 39 41 42 43 2C
123
4
5678 9ABC
35 36 37
38
0D 0A 39 41 42 43 2C
56
7
8
[CR] [LF] 9 A B C
1234,5678,9ABC,DEF0,1234,5678,9ABC,DEF0,1234,5678,
9ABC,DEF0,1234,5678,9ABC,DEF0,1234,5678,9ABC,DEF0
I/O memory contents
CSV file contents
Contents of CSV file when displayed
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,
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