External Input Block - Mitsubishi Electric MELSEC iQ-R User Manual

External input block

Outline
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
Logic Select Bit
Filter Time Word
Initial State Bit
3 CREATING A HARDWARE LOGIC
118
3.1 Main Blocks in the Hardware Logic Outline Window
Valid range Default value
Inversion Non-Inversion
Non-Inversion
Page 119 "Filter
• General Input (Pulse input mode)
Time" • 1ms (Input response time/
counting speed)
Low Low
High
Description
Set Non-Inversion or Inversion for input
signals.
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.
Set the signal status during a hardware logic
control stop to Low fixed or High fixed.