6 horstCONTROL I/O
43
6.4.7.2
Software Configuration Options for Digital Interfaces
In the horstFX software, the inputs and outputs can also be configured in the
Configuration of Inputs/Out-
puts
menu under
Settings & Info
. See also the horstFX user manual.
Assignment of Functions
In horstFX, functions can be assigned to the general digital I/Os and the configurable safe I/Os (
Function
assignment
setting). Examples include starting the program, acknowledging errors or moving at reduced
speed. For the inputs, this means that the assigned function is executed if there is a valid signal at the
corresponding input. For the outputs, it means that the assigned function is executed when the corre-
sponding output is switched. The I/Os configured in this way are then no longer available as normal digital
inputs/outputs, as they have a fixed link with the functions. The exclusively safe inputs (emergency stop,
safety stop and enabling switch) (Safety In 1-3) cannot be assigned functions. More on this in the horstFX
manual.
Filters
For all digital inputs
–
safety-critical and general
–
a low-pass filter can be configured. Only if a signal is
present for a minimum period of time is it recognized as valid (e.g. for bouncing switches). The time value
can be set in the horstFX software under the
Low-pass filter
setting.
Possible values are between
−
1 and 50 ms for all safety-critical inputs (dedicated and configurable).
−
1 and 50 ms for all safe inputs configured as general digital inputs
−
1 and 32767 ms for all general digital inputs.
Summary of Contents for HORST900
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