03 September 2007

Digital I/O Wiring Exercise

Copyright © 2007 Alien Technology Corporation. Advanced Academy Student use only. Not for redistribution RFID-301, Mod 3, page 203 September 2007

Connector Pin Definition

Typical Digital Output Circuit

Typical Digital Input Circuit

EXTERNAL_V-(PIN_14)

OPTO_IN0-3(PIN_10-13)

0.5A

EXTERNAL_V-(PIN_14)

OPTO_OUT0-7(PIN_2-9)

EXTERNAL_V+(PIN_1)

Digital I/O Reference Circuits

Copyright © 2007 Alien Technology Corporation. Advanced Academy Student use only. Not for redistribution RFID-301, Mod 3, page 303 September 2007

Digital I/O Wiring Exercise

Goals• Wire the I/O and test for

proper operation• The digital I/O should be

wired as follows. Use the External IO tester for confirmation.

• Amber = Output 1• Red = Output 2• Green = Output 3• Photo eye trigger rising edge Input

#1

• Find the value of the series resistor, R1, for the appropriate Input voltage, Vin.

Output Setting

Output 4 (Beeper)

Output 3 (Green)

Output 2 (Red)

Output 1 (Amber)

01 Asserted L

2 Asserted L

3 Asserted L Asserted L

4 Asserted L

5 Asserted L Asserted L

6 Asserted L Asserted L

7 Asserted L Asserted L Asserted L

8 Asserted L

9 Asserted L Asserted L

10 Asserted L Asserted L

11 Asserted L Asserted L Asserted L

12 Asserted L Asserted L

13 Asserted L Asserted L Asserted L

14 Asserted L Asserted L Asserted L

15 Asserted L Asserted L Asserted L Asserted L

5V

9V

12V

24V

N/A

820 Ώ

1.5KΏ

3.9 KΏ

Vin R1 (1/4W)

5V

9V

12V

24V

N/A

820 Ώ

1.5KΏ

3.9 KΏ

Vin R1 (1/4W)

Copyright © 2007 Alien Technology Corporation. Advanced Academy Student use only. Not for redistribution RFID-301, Mod 3, page 403 September 2007

Breakout Board ExerciseSourcing Input

24Vdc Power Supply

+24VDC(Red)

+24

VD

C (

Wht

)

Gre

en L

ight

(G

rn)

Yel

low

Lig

ht (

Org

)

Red

Lig

ht (

Red

)

R1

+24VDC(Brown)

Source (Black)

DC Return(Blue)

Ref

lect

or

Photo eye DC Return(Black)

DC Return

(Black)

(White)

(In-1)

(White)Sink (White)

N/C

+ Vcc(Pin 1)

(Out-3)

Vin