Table 5-8 Db Structure - Traversing Programs - Siemens SIMATIC FM 453 Manual

Defining Parameters of the FM 453
5.3.4 Traversing Programs
DB Structure
Table 5-8 gives you a general view of the structure of the "traversing pro-
grams" data block (DB-NC).
DB No.: 1001...1199 for channel 1
DB No.: 1301...1499 for channel 2
DB No.: 1601...1799 for channel 3
Table 5-8 DB Structure – Traversing Programs
Address Variable Type
0 WORD
2 WORD
4 DWORD
8 WORD
10 WORD 1
12 2 STRING NC
16 DWORD 453
20 4 CHAR 0
24 DWORD 1 – 3
28 WORD
30 WORD
32 18 STRING ASCII char.
52 STRUCT NC block
72 STRUCT NC block
92 STRUCT NC block
5-24
Value Significance of the Variables
DB header (36 bytes)
Rack slot
DB No. ( 1000)
Reserved
Error No. (from FM)
Channel number
DB identifier/type
Module identifier
Version number/block number
Measurement-system grid per MD7
Reserved
Reserved
NC program name
NC block new (modification range)
1st traversing block
2nd to 100th traversing block
Module address
As in DB header
With MMI services
2 ASCII characters
FM 453
(DB structure)
Unit of measurement
max. 18 characters
see Sections 9.3.11, 10.1
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
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