Additional Parameter Settings For The Configuration Of The Redundant Ai Modules - Siemens SIMATIC PCS 7 Configuration

3 Configuring the redundant peripherals

3.6 Additional parameter settings for the configuration of the redundant AI modules

3.6 Additional parameter settings for the configuration of
the redundant AI modules
This chapter is intended to assist you in configuring the various parameters that
must be set for redundant AI modules.
To do so, you have to take two main points into account:
Special redundancy-related parameters in the HW Config
Time or cycle considerations
Figure 3–1
By clicking the "Help" button you can get further information about the following
parameters:
Tolerance window
A percentage of the full-scale value of the measuring range is configured.
Two analog values are equal if they are within the tolerance window.
Time discrepancy
It is the maximum allowable time in which the redundant input signals can be
different.
Value applied
The "Value applied" is the value of the two analog input values (higher value /
lower value), which is transferred to the user program.
Configuration of Redundant I/O Modules
Entry-ID: 28430682, V2.0, 03/2015
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