Danfoss PLUS+1 MC0XX-1 series, Technical Information, Page: 7 / 30

PLUS+1 ® modules have input or output pins that support multiple functions. Pins that support multiple
input or output types are user-configurable using PLUS+1 ® GUIDE software. Refer to product data sheets
for the input/output (I/O) content of individual modules.
Input types
•
Digital (DIN)
•
Digital or Analog (DIN/AIN)
•
Analog or Temperature or Rheostat (AIN/Temp/Rheo)
•
Multifunction: Digital or Analog or Frequency (DIN/AIN/FreqIN)
•
Multifunction: Digital or Analog or Frequency or Rheostat (DIN/AIN/FreqIN/Rheo)
•
Fixed Range Analog or CAN shield (AIN/CAN shield)
Each PLUS+1 ® module input pin supports one of the above functional types. For pins with multiple
functions, input configurations are user programmable using PLUS+1 ® GUIDE templates.
DIN
Digital inputs (DIN) connected to PLUS+1
® dedicated digital input pins are debounced in software. Digital
input debounce is defined as an input being in a given state for three samples before a state change is
reported. The sample time is a function of application loop time.
Multifunction pins that are configured to be Digital input (DIN) are subject to the same update rates as
the Analog input (AIN) function for that pin. Debounce is not used, as hysteresis is built into the function.
The time to recognize a transition is dependent on the timing of the switch activation and the sample
rate.
General response to input time
Description Comment
Response to input below minimum voltage
Non-damaging, non-latching; reading saturates to the low limit.
Response to input above maximum voltage Non-damaging, non-latching; reading saturates to the high limit.
Response to input open
Pin configuration dependent: No pull up/ no pull down = floating
Pull up to 5 Vdc = 5 Vdc
Pull down = 0 Vdc
Pull up/ pull down = 2.5 Vdc
Voltage working ranges
Programmable (see specific data sheets for ranges).
Specifications
Description Units Minimum Typical Maximum Comment
Input voltage
range V 0 — 36
Rising threshold
voltage V — — 3.91 Guaranteed high voltage.
Falling threshold
voltage V 0.85 — — Guaranteed low voltage.
Input impedance kΩ 230 233 236 No pull up or pull down.
Input impedance
(5 V/GND) kΩ 13.9 14.1 14.3 Pull up to +5 V or pull down
to ground.
Technical Information
PLUS+1® MC0XX-1XX Controller Family
Inputs/outputs types and specifications
© Danfoss | April 2018 L1321895 | BC00000227en-US0401 | 7