01.99 5 PLC Interface
5.3 NCK/PLC interface
5.3 NCK/PLC interface
5.3.1 Channel-specific signals
5.3.1.1 Signals to NCK channel (DB 10 - DB 13)
6)
7 6 5 4 3 2 1 0
Bit No.
Byte No.
DL 0
DRF
2)
Reset
1)
Acknowl. chan-
nel-specific
CANCEL al.
4)
DR 0
Skip
block
Single
block
DEC
single
block
Dry run
feedrate
M01
active
No reduc-
tion of the
channel path
velocity
9)
DL 1
ESR On
(from
SW 6.2)
Feedrate
override
active
3)
E D C B A
DR 1
ESR Off
(from
SW 6.2)
Rapid
traverse over-
ride active
3)
D C B A
DL 2
External
processing
Block
search with
calculation
Block search
with calcula-
tion from last
main block
Internal WAIT
mark
synchroni-
zation
9)
Progr.
start/end
cycles off
7)
Prog. step
(PSTEP)
5)
Break
(BRK)
5)
Clear
(CLR)
5)
DR 2
Delete
distance
to go
Delete no.
of passes of
subroutine NC Stop NC Start
DL 3
C B A
DR 3
DL 4
8. 7. 6. 5. 4. 3. 2. 1.
DR 4
DL 5
JOG TEACH IN MDA AUT
DR 5
REPOS REF VAR 10 000 INC 1 000 INC 100 INC 10 INC 1 INC
Signals to NCK channel
F e e d r a t e o v e r r i d e
15 14 13 12 11 10 9 8
Rapid traverse override
Spindle number
8)
Block skip on several levels (activation)
4)
Operating modes
1)
Functions
________
1) If this signal is defaulted in the 1st channel (master channel) of a mode group, it also applies to all other
channels in this mode group. Mode group-specific Reset can only be defaulted in the master channel.
2) Takes effect only when master channel has been selected (mode group specific).
3) Feedrate and rapid override take effect channel-specifically.
4) SW 2 and higher
5) SW 3 and higher
6) SW 4 and higher DB 10 ... DB 15
7) SW 5 and higher
8) SW 3 and higher, if the power display in the operating mode basic displays is active with digital spindles
9) SW 5.6 and higher
© Siemens AG 1992 All Rights Reserved 6FC5197- AA60 5–21
SINUMERIK 840C (IA)
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