Siemens SINUMERIK 840C Installation Instructions Manual page 597

09.95
Example:
Value in PLC MD 11 = 71 when 1st machine control panel in PLC MD 128 is set to start
address 64.
I byte 0
:
:
:
I byte 71
I byte 72
:
:
I byte 127
13
14
17
This timeout is specified as the number of PLC cycles that are allowed to elapse before the
user interface (UI) is enabled, and applies to all user interfaces on a PLC. When the timeout
has expired, a negative acknowledgement is sent in response to a frame sent to the user
interface.
Default value:
Max. input value:
See also Computer Link
18
A frame sent to the host computer can be output only via this user interface during
synchronization. See Computer Link.
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SINUMERIK 840C (IA)
More user manuals on
Max. 128 bytes on 135 WB
Default value Lower input limit
0
No. of wait cycles for assigned UI
Default value Lower input limit
1
1 i.e. the user interface must be free again after one PLC cycle
10 i.e. the user interface must be free again after ten PLC cycles
No. of the UI during synchronization
Default value Lower input limit
0
ManualsBase.com
8.2 PLC MD for the operating system (system data)
Signals from the machine
Can be used as additional flag area
Reserved
Reserved
Upper input limit
– –
Upper input limit
0 10
Upper input limit
0 31
6FC5197- AA50
8 PLC Machine Data (PLC MD)
DB 60
DW 13
DB 60
DW 14
Units
–
DB 60
DW 17
Units
–
DB 60
DW 18
Units
–
8–5