Data Sheet

dS2824

dS2824 User Manual v3.01

Analogue/Digital flexible I/O's

The dS2824 has eight flexible I/O ports, numbered 1-8, which can be your selection of:

1. Digital open collector output.

2. Digital open collector output with passive pullup to 12v

3. Digital input (0-12v, 2.5v threshold).

4. VFC (Volt Free Contact) input.

5. 12-bit Analogue input, range 0-4.096v or 0-5v.

Connection examples

Example input - connecting a switch

Connecting a simple switch could not be

easier, just wire the switch between a pin (P)

and ground (0v). When the switch closes the

input will become active.

Make sure you use the 1 option in the

digitalport declaration to enable the ports

passive pull-up

Example output - connect a relay

You can connect your own 12V relays, the first

coil pin of the relay is wired to the 12V supply

terminals on the board, the other is wired to

the output pin (P). When the output pin

becomes active it is driven down to 0V

ground, the relay will have 12V across the

terminals and switch, so COM is connected to

NO (Normally Open).