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M 5 7 7 9
5.3.4
Advanced Scaling Options
The Layer N SP-006 allows for advanced scaling options on the pressure and temperature inputs.
The
Advanced Scaling
checkbox can be selected to expand additional configuration options. A gain and/or offset
can be applied to the input reading and the displayed unit can be changed.
To apply a gain or offset to the input, expand the
Advanced
Scaling
menu and ensure that both
Apply
Scaling
and
Lock
are checked. Under Scaling, the gain and offset values can be adjusted. Both positive and
negative values may be entered as well as decimal numbers. The equation for the scaled input value is given
below.
𝑰𝑰𝑰𝑰𝑰𝑰𝑰𝑰𝑰𝑰
𝑺𝑺𝑺𝑺𝑺𝑺𝑺𝑺𝑺𝑺𝑺𝑺
= (
𝑰𝑰𝑰𝑰𝑰𝑰𝑰𝑰𝑰𝑰
𝑹𝑹𝑺𝑺𝑹𝑹
×
𝑮𝑮𝑺𝑺𝑮𝑮𝑰𝑰
) +
𝑶𝑶𝑶𝑶𝑶𝑶𝑶𝑶𝑺𝑺𝑰𝑰
The displayed units can be changed by entering a new value in the
Unit
field and clicking
Apply Settings
. This
field is limited to a maximum of 4 characters. Note that changing the Unit field does not change the base
unit type, only the display name. The
Lock
checkbox must be selected to use the user-defined Unit field.
Unchecking the Lock checkbox and clicking Apply Settings will revert the unit display back to the default
setting.
5.4
Output Configuration
The SP-006 offers two discrete outputs that share circuitry with the discrete inputs. If an output is to be used then
the corresponding input pin must be set to
Disable
. See section
5.3.3 Discrete Input/Output (DIO)
for more
information.
There are three types of output options – On/Off, Pulse-Width Modulation (PWM), or Servo. See section
5.4.1
for
more information on each type.
Outputs may be configured as either Active High or Active Low. When configured as Active High the output
conducts normally and becomes high impedance when activated. When configured as Active Low, the Open-Drain
output is high impedance normally and will conduct when activated.
Option
Value
Description
Active
LOW
When the output is inactive, it is in a high impedance state.
HIGH
When the output is active, it is in a high impedance state.
Figure 13: SYNC interface SP-006 DIO_0 and DIO_1 set to Disable
Figure 14: SYNC interface Output Configuration
