Step 1: Setting The Dip Switches; Switch 1: Enabling/Disabling Input Points - DirectLOGIC DL405 Manual

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Step 1: Setting the DIP Switches

Switch 1:
Enabling/Disabling
Input Points
There are two banks of DIP switches, SW1 and SW2, located on the back of the
module. You can enable/disable interrupt points; adjust the response time, and set
the triggering to be either on the rising edge or trailing edge of the input signal. The
following table shows an overview of the switch settings. If you are unsure of the
meaning of some of these options, just keep reading. The remaining paragraphs
explain these in more detail.
SW1
ON
SW1 Position 1 2 3 4 5 6 7 8
Input
ON = ENABLE
SW2 Position
Input
ON=Interrupt triggered by the rising edge
OFF= Interrupt triggered by the falling edge
SW2 Position
Input
ON=Low speed (slower response time)
SW2
OFF= High speed (faster response time)
ON
Positions 1–8 on Switch 1 enable (or disable) each individual interrupt point. Your
application may not require that all 8 inputs be used as interrupt inputs. For example,
you may only need one interrupt input. In this case, you could use the other 7 points
as normal discrete inputs.
You can enable the interrupt for each individual point by sliding the DIP switch to the
position ON for those input points you wish to enable. For example , sliding position 4
to the ON position will enable input point X3.
NOTE: Any points not designated as interrupt points can be used as normal input
points . For normal inputs, set the switch to the OFF position.
0 1 2 3 4 5 6 7
OFF = DISABLE
By setting the switches1 thru 4 of
1 2 3 4
SW2, you can select whether the
0, 1 2, 3 4, 5 6, 7
interrupt is triggered on the rising or
falling edge.
By setting switches 5 thru 8 of SW2,
5 6 7 8
you can select the response delay
0 1 2 3
time from one of two ranges for
inputs 0 thru 3. This feature is not
available for inputs 4 thru 7, which
are always set at the fastest
response time.
By setting the switches1
thru 8 of SW1 to the ON
or OFF position, you can
ENABLE or DISABLE the
corresponding inputs as
indicated.