Siemens SINUMERIK 840Di sl Function Manual page 150

3 Setting up functions
3.5 Global settings
Field
AC marker
Feedback messages
to PLC
Define memory area
Data block
Starting address
End address
Apply
Number of lines
Note
The PLC performance index allows you to define how much performance may be
used for the ePS Network Services PLC trigger. Each ePS Network Services PLC
trigger uses a certain number of performance points.
In this way you can control the extent to which the PLC may be occupied by the
ePS Network Services PLC trigger. The PLC performance index must be defined
individually by the machine manufacturer based on the performance capability of
the PLC.
3-150
Content
An AC marker that is not being used by
applications elsewhere must be enabled
for the purpose of performing axis tests.
Used to specify data block number for
feedback messages.
Starts the user data area with the
definition of the first byte number.
Ends the user data area with the definition
of the last byte number.
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 screen that can be
shown in this menu. You can select up to
200 lines. A scroll bar will then be
displayed on the screen.
ePS Network Services, Function Manual (FH) - Release 12/2008
Type
Display and input
Digits from 0 to 19999
Display and input
S7 permissible data
block numbers
Display and input
S7 permissible data byte
addresses:
In addition, the start
label must be pre-
assigned with 4 bytes
before the specified
byte.
Display and input
S7 permissible data byte
addresses:
In addition, the end label
must be pre-assigned
with 4 bytes after the
specified byte.
ACTION
DISPLAY
SELECTION
© Siemens AG 2008 All Rights Reserved
12/2008