5 PLC Interface
10.94
5.3.13 DBs set-up for user (DB 66, 67, 68, 71)
DB 71 for bits
7
6
5
4
3
2
1
0
Bit No.
Byte No.
PLC
DL 0
..
.
DR 15
15
14
13
12
11
10
9
8
5.3.14 Decoding lists for M signals (DB 80...DB 83)
1)
High byte (DL)
Low byte (DR)
DW No.
PLC-
MD No.
DW
m+0
DW
m+1
DW
m+2
Decoding lists for M signals
Extended address
M address
Bit address, DW No.
Bit address, bit No.
Notes:
•
Address m is obtained from the following number of the M function definition:
M function
m
1
0
2
3
3
6
..
.
..
.
64
189
•
The table is to be completed consecutively from the first entry, gaps between entries are
not allowed. If less than 64 M functions are defined, unassigned entries are preset with 0.
All unassigned entries are located at the end of the table.
•
The decoding lists are channel-specific, i. e. decoding list DB 80 is provided for NC
channel 1 and, accordingly, DB 83 is allocated to NC channel 4.
•
M decoding according to the decoding list is activated channel-specifically via MDs.
_______
1)
SW 4 and higher: DB 85
END OF SECTION
5–62
© Siemens AG 1992 All Rights Reserved 6FC5197- AA60
SINUMERIK 840C (IA)
Summary of Contents for SIMODRIVE 611-D
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