External Input Block - Mitsubishi Electric MELSEC-L Series LD40PD01 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
Logic Select
Filter Time
Initial State
9 CREATING A HARDWARE LOGIC
106
9.1 Main Blocks in the Hardware Logic Outline Window
Data type Valid range
Bit Inversion
Non-Inversion
Page 107 "Filter
Word
Time"
Bit Low
High
Default value Description
Non-Inversion Set Non-Inversion or Inversion for input signals.
• General Input (Pulse Select a type of the filter time. The filter time corresponding
input mode) to the input response time of general-purpose input or the
• 1ms (Input response counting speed of each pulse input mode can be set.
time/counting speed)
Low Set the signal status during a hardware logic control stop to
Low fixed or High fixed.