Siemens SINUMERIK 840C Installation Instructions Manual page 607

09.95
PLC MD
DB63
DW No.
6026
DL 13
Default value:
Bit 7
Bit 6 = 1:
Bit 5 = 1:
Bit 3 = 0:
Bit 3 = 1:
Bit 5 = 0:
Note:
The MD is not active when using the "Overstore" function. With "Overstore", NC start is
always prevented from becoming active in a non-selected channel.
Bit 2
Bit 1
PLC MD
DB63
DW No.
6029
DR 14
Default value:
Bit 0
Bit 3
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SINUMERIK 840C (IA)
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7 6
Deselect
Enable
Enable init
autom. NC
serial
in same
START
interface
channel INHIBIT
DB37
with MDA
1000 000
When bit 7 is set, data can be read in and out via the computer link
interface with DB 37.
Funktion Init im eigenen Kanal wird freigegeben.
NC start is issued to all channels (even if "NC start inhibit" is active).
It is up to the passed to make sure that NC start is not passed to the NC
(DB 10-13, D 20).
Save flags 224 - 255 (default setting) when changing processing level
Save flags 200 - 255 when changing processing level
On MDA mode, NC start is only passed to the selected channel. NC start
is not passed to those channels signalling "NC start inhibit"
(DBs 10-13, D 16-15).
Access to PLC data over @ commands is disabled.
The command channel function is enabled. The number of user interfaces
is specified in PLC MD 33. See PLC MD 33.
7 6
0
Bit = 0 T and H words are output to the programmed channel DB only. Also see
the Interface Description.
Bit = 1 T/H words can be routed to different channel DBs over the extended T/H
address.
As long as interface signal DB 10 to 13, DR 63.6 is set to "1", machine data bit
6029.3 has the following effect:
Bit = 0 The signal "Route T/H word" from the source channel to the programmed
target channel is suppressed.
Bit = 1 The signal "T/H word routing" is suppressed in the target channel.
ManualsBase.com
8.5 PLC MD for the operating system (system bits)
Bit No.
5 4 3
Save flag
area
Bit No.
5 4 3
Signal T/H
word routing
target
channel
suppressed
6FC5197- AA50
8 PLC Machine Data (PLC MD)
2 1 0
Access to
Command
PLC data
channel
inhibited
enabled
with @
2 1 0
T/H
word
routing
active
8–15