Siemens SINUMERIK 840C Installation Instructions Manual page 1061

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