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6GT2 097-3AH00-0DA2
Example:
The file 'EXAMPLE' is to be written from position 0 with a length of 500 bytes. Assumption: the file already
exists, there is enough free memory available on the MDS and the write operation will be performed with-
out error. 514 bytes of user data are to be transmitted (500 + 14 for name, start address, length).
The block length specified as 255 bytes results in 3 telegram segments with user data lengths of 230, 244
and 26 bytes.
0
1st telegram
segment to file
handler:
xx 00 0000
0
Acknowledgement:
00 xx 0000
2nd telegram
0
segment to file
handler:
xx 00 0000
Acknowledgement:
0
00 xx 0000
0
3rd telegram
segment to file
handler:
xx 00 0000
0
Acknowledgement:
00 xx 0000
Subject to change without notice!
RD: 03/02
J31069-D0142-U001-A0-7618
1
2/3
4
5
6/7
CC CI
ADB
DBN DBL
'W'
'I'
0003
0001 F4H
1
2/3
4
5
6/7
8/9
CC Status ADB DBN DBL
'W'
00
0003
0001 00
1
2/3
4
5
6/7
CC CI
ADB
DBN DBL
'W'
'I'
0003
0002 F4H
1
2/3
4
5
6/7
8/9
CC Status ADB DBN DBL
'W'
00
0003
0002 00
1
2/3
4
5
6/7
CC CI
ADB
DBN DBL
'W'
'I'
0003
0003
1
2/3
4
5
6/7
8/9
CC Status ADB DBN DBL
'W'
00
0003
0003 00
– 28 –
ASM 421 Technical Description
8/9
10
11/18
19/21
File name Start addr
'EXAMPLE' 000000 0001F4H
10
8/9
10
11..254
Data (244 bytes)
xx xx xx xx xx xx xx xx xx
10
8/9
10
11..36
Data (26 bytes)
1A
xx xx xx xx xx xx xx xx xx
10
6GT2 002-0DA00
6GT2 002-0DB00
6GT2 002-0DC00
22/24
25..254
Length
Data (230 bytes)
xx
xx
xx
xx
ASM 421 / V.24
ASM 421 / RS422
ASM 421 / TTY
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