Digital I/O

SOMANET supports several Digital I/O which can be either used as GPIO or SPI SSI (single-ended), I²C, BiSS (single-ended).

Details and default settings are described in detail for Node and for Circulo.

Configuration of Digital I/Os as Input or Output

Most Digital I/Os are configurable as either input or output independently if they are used as general purpose input/output (GPIO). This is done in object 0x2210.

Subitems 1-4 describe the available pins and can be configured with these values:

• 0 Disabled (default)

• 1 Input without pull-down

• 2 Input active high - a pull-down resistor will be activated

• 3 Output

Parameters related to GPIO

0x2210 GPIO

Select if Digital I/Os are input or output.