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9 CREATING A HARDWARE LOGIC
9.1 Main Blocks in the Hardware Logic Outline Window
External input block
In the first section in the hardware logic outline window, 12 external input blocks ("IN 0" to "IN B") are arranged by default.
Select which signal (among "IN 0" to "IN B") input from the connector for external devices is to be used as an input signal in
the hardware logic. The selected input signal is output from the output terminal of the external input block through the filter.
The output signal can be input to the input terminal of another block.
The external input block has the following functions.
• When "Logic Select" is set to "Inversion", inverted signals are output.
• The digital filter reduces the effect of external noise.
• The signal selected as an initial state is output when hardware logic control stops.
Parameter
The following table shows the parameters of the external input block.
Variable name
Data type
Valid range
Default value
Description
Logic Select
Bit
Inversion
Non-Inversion
Non-Inversion
Set Non-Inversion or Inversion for input signals.
Filter Time
Word
• General Input (Pulse
input mode)
• 1ms (Input response
time/counting speed)
Select a type of the filter time. The filter time corresponding
to the input response time of general-purpose input or the
counting speed of each pulse input mode can be set.
Initial State
Bit
Low
High
Low
Set the signal status during a hardware logic control stop to
Low fixed or High fixed.
Outline
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