Specifications

I
2
C Input/Output Boards, Continued
Circuits on the DIO board are wired as shown in the following table. The
table is the view as seen when looking at the connector while the board
is installed.
Digital I/O Board
(DIO) Connections
DIO I
2
C Wire Side View
Lead Pin Pin Lead
DI Common 2 ∎ ∎ 1 DI6 Signal
DI Common 4 ∎ ∎ 3 DI5 Signal
DI Common 6 ∎ ∎ 5 DI4 Signal
DI Common 8 ∎ ∎ 7 DI3 Signal
DI Common 10 ∎ ∎ 9 DI2 Signal
DI Common 12 ∎ ∎ 11 DI1 Signal
DO8 C 14 ∎ ∎ 13 DO8 NC
DO7 NC 16 ∎ ∎ 15 DO8 NO
DO7 NO 18 ∎ ∎ 17 DO7 C
DO6 C 20 ∎ ∎ 19 DO6 NC
DO5 NC 22 ∎ ∎ 21 DO6 NO
DO5 NO 24 ∎ ∎ 23 DO5 C
DO4 C 26 ∎ ∎ 25 DO4 NC
DO3 NC 28 ∎ ∎ 27 DO4 NO
DO3 NO 30 ∎ ∎ 29 DO3 C
DO2 C 32 ∎ ∎ 31 DO2 NC
DO1 NC 34 ∎ ∎ 33 DO2 NO
DO1 NO 36 ∎ ∎ 35 DO1 C
Digital Inputs: Optocoupler with internal 12-24 VDC power supply,
switchable with floating contacts; alternative: switchable with external
voltage 12-24 VDC, common negative pole.
Digital Outputs: Digital Outputs: Floating double-throw contacts, max.
contact load rating 30 V/1A
The DOs are rated for 1A resistive load. Inductive loads are different. A DO
should not drive an inductive load greater than 0.5A. The typical block and
bleed application, which uses two parallel solenoids at 0.4A each, should
use separate DOs to drive each solenoid. Each DO connected to a solenoid
should have a diode to suppress the solenoid load.
Design: Terminal strips for braided or solid conductors with a maximum
diameter of 1.5 mm or 16 AWG.
Table 2-5: I
2
C DIO Board Connection Diagram
A5E31405710001 2-17