3 Setting up functions
08/2008
3.4 Global settings
© Siemens AG 2008 All Rights Reserved
3-140
ePS Network Services, Function Manual (FH) - Release 08/2008
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 has to be de-
fined individually by the machine manufacturer.
Feedback to the PLC
Field Content
DB10.DBB118
Display and input
Selection list
Determine the S7 data type and S7 format for the data
type, with a label for the content of these variables.
DB10.DBB119
Display and input
Selection list
Determine the S7 data type and S7 format for the data
type, with a label for the content of these variables.
DB10.DBB120
Display and input
Selection list
Determine the S7 data type and S7 format for the data
type, with a label for the content of these variables.
DB10.DBB121
Display and input
Selection list
Determine the S7 data type and S7 format for the data
type, with a label for the content of these variables.
The S7 data types and formats should be taken from the manual titled "Program-
ming with STEP 7 V5.4" (in the Appendix "Data and parameter types").ePS Net-
work Services does not support times or real numbers here.
The S7 data type is also determined by means of the data width. If a word is de-
fined, the following byte is, therefore, included automatically and blocked for a
separate format. If a double word is defined, all 4 bytes are assigned as double
words. ePS Network Services checks the plausibility of the potential formats and
only permits correct configurations (e.g. data word 121 is not permitted).