Siemens SINUMERIK 840D sl Function Manual page 189

03/2013
Function
PLC
performance
index
AC marker
Feedback messages to PLC
Define memory area
Data block
Start address
(DBB)
End address
(DBB)
Accept
Storage addresses 1 - 4 of 8
Number of lines
© Siemens AG 2006-2013 All Rights Reserved
SINUMERIK Integrate AMB, AMC, AMM, Function Manual (FH) - 03/2013
Description
The PLC performance index can be used to
limit the number of PLC functions that are
executed by SINUMERIK Integrate, so that
SINUMERIK Integrate does not put an
unnecessary high load on the control.
The part of the cycle time for
SINUMERIK Integrate functions depends
directly on the number of executed
SINUMERIK Integrate functions.
Since there are different PLCs with different
command execution times, a sensible
quantity must be determined for this index.
An AC marker that is not being used by
applications elsewhere must be enabled for
the purpose of performing axis tests.
Digits from 0 to 19999
Specification of the data block number for
feedback messages.
• S7 permissible data block numbers
Start of the user data area with the specification
of the first byte number.
• S7 permissible and existing DB
In addition, the start label must be pre-assigned
with 4 bytes before the specified byte.
Hex: 65; 50; 53; 5B
End of the user data area with the specification
of the last byte number.
A maximum of 8 bytes can be specified.
• S7 permissible and existing DB
In addition, the start label must be pre-assigned
with 4 bytes before the specified byte.
Hex: 5D; 65; 50; 53
Select / deselect Use default storage address.
The memory addresses for address formatting
are displayed when the data block interface
entry is applied.
The number in the display indicates the
number of lines per window that can be
shown in this menu. You can select from 4 to
8 lines. A scroll bar will then be displayed in
the window.
3 Setting up functions
3.5 Global settings
Type
DISPLAY
INPUT
DISPLAY
INPUT
DISPLAY
INPUT
DISPLAY
INPUT
SELECTION
DISPLAY
ACTION
DISPLAY
SELECTION
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