Siemens SINUMERIK 840C Installation Instructions Manual page 1061

12 Functional Descriptions
12.28.4 Format of interface data blocks
DB 3 data transfer areas
Byte No.
DL 0
DR 0
DL 1
DR 1
DL 2
DR 2
DL 3
DR 3
DW 4
.
. .
DW 13
DL 14
DR 14
. .
.
DL 29
DR 29
DL 30
DR 30
DL x
DR x
DL
x+1
DR
x+1
DL
x+2
DR
x+2
DR 12
x = Data transfer area nos. 1 to 32 via pointers (DW 14 to 29)
12–286
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DB 3 data transfer areas
15 14 13
7 6 5
A c t i v a t i o n b i t s f r o m P L C
Data Data Data
channel 8 channel 7 channel 6
A c t i v a t i o n b i t s f r o m P L C
Data Data Data
channel 16 channel 15 channel 14
A c t i v a t i o n b i t s f r o m P L C
Data Data Data
channel 24 channel 23 channel 22
A c t i v a t i o n b i t s f r o m P L C
Data Data Data
channel 32 channel 31 channel 30
S t a t u s b i t s f r o m NC " D a t a c h a n n e l c o n f i g u r a t i o n v a l i d "
Data Data Data
channel 8 channel 7 channel 6
S t a t u s b i t s f r o m NC " D a t a c h a n n e l c o n f i g u r a t i o n v a l i d "
Data Data Data
channel 16 channel 15 channel 14
S t a t u s b i t s f r o m NC " D a t a c h a n n e l c o n f i g u r a t i o n v a l i d "
Data Data Data
channel 24 channel 23 channel 22
S t a t u s b i t s f r o m NC " D a t a c h a n n e l c o n f i g u r a t i o n v a l i d "
Data Data Data
channel 32 channel 31 channel 30
P o i n t e r t o d a t a a r e a 1
( = N o. o f d a t a w o r d ) (DW "X")
P o i n t e r t o d a t a a r e a 2
P o i n t e r t o d a t a a r e a 31
P o i n t e r t o d a t a a r e a 32
J o b N o . ( a c k n o w l e d g e m e n t f r o m N C )
Error in NC Error in NC
data write data read
operation operation
Bit 7 Bit 6 Bit 5
Bit 15 Bit 14 Bit 13
Bit 23 Bit 22 Bit 21
Bit 31 Bit 30 Bit 29
Synchronous data channels
Res. Res. Res.
ManualsBase.com
12 11
Bit No.
4 3
Data Data
channel 5 channel 4 channel 3
Data Data
channel 13 channel 12 channel 11
Data Data
channel 21 channel 20 channel 19
Data Data
channel 29 channel 28 channel 27
Data Data
channel 5 channel 4 channel 3
Data Data
channel 13 channel 12 channel 11
Data Data
channel 21 channel 20 channel 19
Data Data
channel 29 channel 28 channel 27
R e s e r v e d
.
. .
R e s e r v e d
( = N o. o f d a t a w o r d )
. .
.
( = N o. o f d a t a w o r d )
( = N o. o f d a t a w o r d )
C o n t r o l b i t s
Synchronous
channel
V A L U E
Bit 4 Bit 3
V A L U E
Bit 12 Bit 11 Bit 10
V A L U E
Bit 20 Bit 19 Bit 18
V A L U E
Bit 28 Bit 27 Bit 26
Res. Res.
© Siemens AG 1992 All Rights Reserved
07.97
10 9 8
2 1 0
Data Data Data
channel 2 channel 1
Data Data Data
channel 10 channel 9
Data Data Data
channel 18 channel 17
Data Data Data
channel 26 channel 25
Data Data Data
channel 2 channel 1
Data Data Data
channel 10 channel 9
Data Data Data
channel 18 channel 17
Data Data Data
channel 26 channel 25
.
. .
. .
.
"
New value" "New value"
data write NC read NC
data data
Bit 2 Bit 1 Bit 0
Bit 9 Bit 8
Bit 17 Bit 16
Bit 25 Bit 24
"
New value" "New value"
write NC read NC
Res.
data data
6FC5197- AA50
SINUMERIK 840C (IA)