Channel 0 Clock+
DO14 (J4.24)
Channel 0 Clock-
DO12 (J4.39)
Channel 0 Data+
DO15 (J4.38)
Channel 0 Data-
DO13 (J4.9)
Channel 1 Clock+
DI14 (J4.31)
Channel 1 Clock -
DI12 (J4.2)
Channel 1 Data+
DI15 (J4.1)
Channel 1 Data-
DI13(J4.17)
Ground
N/C (J4.41)
Part number ordering example:
RIO-47122-QUAD
-PWM section in the Appendix for more information.
Digital Inputs
Digital inputs 0-15 are opto-isolated inputs with a range of 5-24VDC. There is a 2.2k internal series resistor
to INC0 (Input Common Bank 0) for inputs 0-7 and INC1 (Input Common Bank 1) for inputs 8-15. The
series resistor limits the current through the PS2805 opto-coupler. The INC0 and INC1 can either be
connected to the positive side of a DC power supply or to the Ground side of a DC power supply. When a
device is connected to the digital input, current flowing through the opto-coupler will cause the input to turn
on. The logic of the input can be configured using the IQ command.
+5V to 24V
or
GND
Toggle
Switch
+5V to 24V or GND
(needs to be the opposite of
what goes into INC0 and INC1)
Figure 6: Digital Inputs
INC jumpers
The INC jumpers can be used when an external power supply is not desired for digital inputs 0-15. These
inputs can use the in5V from the RIO instead. To do this, place a jumper on the pins labeled INC as
shown here:
OUT
C
IN
C
When using the INC jumpers, the digital inputs must have a reference. This reference comes from the RIO
from pin 34 (INC0B) for inputs 0-7 and from pin 16 (INC1B) for inputs 8-15.
44 Chapter 4 I/O
RIO-47xxx
Содержание RIO-47**0
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