Table of Contents
Advertisement
APPENDIX
With the file address the index of the archive to be read is selected.
The number of registers of the bytes which are read from an archive entry (number
of bytes = number of registers x 2). The maximum number of registers to be read
is limited to 125 per request.
The following example shows the data to be read in a request:
100
• File number:
• Start index:
• Number of registers:
Archive index Modbus register
7
8
9
The example shows the reading of two complete event archive entries
(index 7 and 8) and a part archive (2 bytes from index 9). In practice, it makes
sense to request only complete archives. The above case is used exclusively to il-
lustrate the mechanism.
Manual TME400-VMF · EN11 · January 22nd, 2024
6 (Event archive, size: 12 Byte per entry)
7 (Read from index 7)
13
Internal storage address of the TME 400
1 (Hi)
0 (+ Offset)
1 (Lo)
1 (+ Offset)
2 (Hi)
2 (+ Offset)
2 (Lo)
3 (+ Offset)
...
...
6 (Hi)
10 (+ Offset)
6 (Lo)
11 (+ Offset)
7 (Hi)
12 (+ Offset)
7 (Lo)
13 (+ Offset)
8 (Hi)
14 (+ Offset)
8 (Lo)
15 (+ Offset)
...
...
12 (Hi)
22 (+ Offset)
12 (Lo)
23 (+ Offset)
13 (Hi)
24 (+ Offset)
13 (Lo)
24 (+ Offset)
Advertisement
Table of Contents
