NI CRIO-9421

CompactRIO
Digital Input and Counter/Timer Modules
NI cRIO-9411, NI cRIO-942x, NI cRIO-9435 NEW!
• High and low-speed 24 V logic
(IEC 1131-2), differential/
single-ended inputs, or
universal AC/DC inputs
up to 250 VAC/VDC
• Isolation up to 2,300 Vrms
(withstand), up to 250 Vrms
(continuous)
• Up to 1 µs input rate for ultrahighspeed control or long-distance
digital communication
• Internal current limiting and
industrial logic thresholds for
direct connection to a wide array
of industrial switches, encoders,
and transducers
Logic
Differential or 5 V/TTL
24 V
24 V
Universal
Source/Sink
–
Sink
Sink
Sink/source
Channels
6 DI/SE
8 SE
8 SE
4 DI
Overview
High-performance digital input modules for National Instruments
CompactRIO embedded systems and R Series expansion chassis
provide industrial logic levels for direct connection to a wide array
of industrial switches and transducers. Each module features an
integrated connector junction box with screw terminal
or cable options for flexible and low cost signal wiring. All modules
feature the NI CompactRIO Extreme Industrial Certifications
and Ratings.
Advanced Features
Advanced features include internal current limiting and industrial
logic thresholds for direct connection to a wide array of industrial
devices such as proximity switches, emergency stop buttons, level
switches, pressure probes, and magnetic pickups. The NI cRIO-9411
module, ideal for quadrature position encoders, features 5 V/TTL
logic levels with differential inputs up to ±24 V or single-ended
inputs. The cRIO-9411 also accepts 6 to 30 V power and generates
a regulated 5 V output for powering quadrature encoders. The
cRIO-9435 is a universal digital input module that accepts AC and
DC as well as both sinking and sourcing signals up to 250 VAC/VDC.
NI CompactRIO digital input modules connect directly to RIO
FPGA hardware to create high-performance embedded systems that
deliver the optimization and flexibility of a custom electrical circuit
completely dedicated to your I/O application. The RIO FPGA
hardware provides unlimited options for timing, triggering,
synchronization, change detection, digital pattern matching, or
1
See CompactRIO Overview on page 366 for details.
I/O Delay Time
500 ns
100 µs
1 µs
3 ms
Signal Levels
±5 to ±24 V
24 V
24 V
±5 to 250 VDC, 10 to 250 VAC
Isolation
3
3
3
3
Connector
D-Sub
Screw Terminal, D-Sub
Screw Terminal
Screw Terminal
digital communication. For instance, a CompactRIO system can
implement a circuit to detect digital events and record a timestamp,
implement high-reliability digital control logic in silicon, or perform
redundant safety enforcement and interlocks. Unlike traditional
digital control devices, the performance of a CompactRIO digital
control system does not decrease as the amount of digital logic
increases because of the parallel nature of the RIO FPGA circuitry.
Key Features
• High-performance digital and counter/timer input modules for
any CompactRIO embedded system or R Series expansion chassis
• Screw terminals, D-Sub, strain relief, high-voltage cable,
solder cup backshell, and other connectivity options
• NI CompactRIO Extreme Industrial Certifications and Ratings1
• cRIO-9411 module generates regulated 5 V power for quadrature
encoder or other devices
• Channel-to-earth ground double-isolation barrier for safety
and noise immunity
Visit ni.com/compactrio for up-to-date information on module
availability, example programs, application notes, and other
developer tools.
CompactRIO
Digital Input and Counter/Timer Modules
Product
cRIO-9411
cRIO-9421
cRIO-9423
cRIO-9435
11
For ordering information, see page 381.
North American
Hazardous Locations
(pending)
For more information, see page 379.
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377
CompactRIO
Accessories and Cables
SH68-C68-S Cable – for connecting an
NI cRIO-9151 R Series expansion chassis
to the digital port on a PCI or PXI
R Series device. You can connect up to
two cRIO-9151 chassis to an NI 7831R
device, and up to four cRIO-9151 chassis
to a PXI-7811R device.
Note: Use only the SH68-C68-S digital cable with the cRIO-9151 chassis.
cRIO-9935 15-Pin Connector Kit
DIN-Rail Mounting Kits – for mounting
Connectivity Accessories
4 or 8-slot CompactRIO embedded chassis
or cRIO-9151 R Series expansion chassis to
any standard 35 mm DIN rail. For high
shock and vibration applications, NI recommends a panel mounting
configuration rather than DIN rail. Panel mounting holes are built
into all CompactRIO Chassis. For detailed mounting instructions,
refer to the CompactRIO Installation Instructions manual for
your chassis.
The CompactRIO system is designed to provide flexible options
for low cost field wiring and cabling. The cRIO-9932 kit provides
strain relief and operator protection from high-voltage signals for
any 10-position screw terminal module. The cRIO-9935 (or other
15-pin D-Sub connector) is required for use with the cRIO-9411
module. The cRIO-9935 includes a screw terminal connector with
strain relief as well as a D-Sub solder cup backshell for creating
custom cable assemblies. The cRIO-9936 consists of 10 screw
terminal plugs for any 10-position screw terminal module. The
cRIO-9937 consists of ten 4-position power supply plugs for
CompactRIO real-time controllers.
cRIO-9912
CompactRIO
Accessories and cables
cRIO-9915
11
DIN-rail mounting kit for 4-slot CompactRIO chassis
(embedded or expansion)
DIN-rail mounting kit for 8-slot CompactRIO chassis
(embedded or expansion)
Power Supplies
NI offers a variety of UL approved
industrial power supplies. The PS-5 is a
DIN-rail-mountable 24 VDC power
supply that provides 5 A of current and is
rated for operation from -25 to 60 °C.
Two PS-5 supplies can be wired in
parallel to provide up to 10 A. The PS-5 is
recommended for heavy-duty industrial
installations. The PS-4 is a DIN-railmountable 24 V power supply in FieldPoint packaging. The PS-3 and
PS-2 are power supply “bricks” with a universal IEC power input.
The PS-3 can also operate as a float charger for 12 VDC batteries. The
PS-1 is a wall-mount power supply.
Power Supply
PS-1
PS-2
Output Capacity
20 VDC, 0.8 A
24 VDC, 0.8 A
PS-3
13.8 VDC, 4 A
PS-4
PS-5
24 VDC, 0.625 A
24 VDC, 5 A
Input Voltage
120 VAC
Japan 100 VAC/US 120 VAC
North American 240 VAC
Japan 100 VAC/US 120 VAC
North American 240 VAC
UPI
UPI
Product
cRIO-9932
cRIO-9933
cRIO-9934
cRIO-9935
cRIO-9936
cRIO-9937
Description
Strain relief and high-voltage connector kit, 10-position screw-terminal
37-pin connector kit with strain relief
25-pin connector kit with strain relief
15-pin connector kit with strain relief
10-position screw-terminal plugs (quantity 10)
4-position controller power supply plugs (quantity 10)
Note: To meet shock and vibration requirements, you must affix
ferrules to the ends of the wires on all screw terminal connectors.
cRIO-9937
Power Supply Plugs
cRIO-9936 10-position
screw terminal plugs
cRIO-9932 Strain Relief and
High-Voltage Connector Kit
Visit ni.com/compactrio for up-to-date information on availability
of accessories.
For ordering information, see page 381.
BUY ONLINE or CALL (866) 265-9891! Visit ni.com
380
CompactRIO
Ordering Information
Ordering Information
Developer Kits
Input/Output Modules1
NI cRIO-9961 Embedded System Developer
Hardware Evaluation Kit ..........................................779107-01
Analog Input Modules
NI Reconfigurable I/O
Software Development Kit ......................................779149-03
Reconfigurable Embedded Systems
Real-Time Controllers
NI cRIO-9002 ................................................................779000-01
NI cRIO-9004 ................................................................779055-01
Reconfigurable Chassis
NI cRIO-9101 ................................................................779052-01
NI cRIO-9102 ................................................................779007-01
NI cRIO-9103 ................................................................779053-01
NI cRIO-9104 ................................................................779054-01
Power Supplies
Analog Output Module
NI cRIO-9263 .............................................................. 779012-01
Digital Input and Counter/Timer Modules
NI cRIO-9411 ................................................................779005-01
NI cRIO-9421 ................................................................779002-01
NI cRIO-9423 ................................................................779009-01
NI cRIO-9435 ................................................................779010-01
Digital Output and Relay Modules
NI cRIO-9472 ................................................................779004-01
NI cRIO-9474 .............................................................. 779003-01
NI cRIO-9481 ................................................................779006-01
Accessories
R Series Expansion Systems
NI cRIO-9912 ................................................................779019-01
NI cRIO-9915 ................................................................779018-01
NI cRIO-9932 ................................................................779017-01
NI cRIO-9933 ................................................................779103-01
NI cRIO-9934 ................................................................779104-01
NI cRIO-9935 ................................................................779016-01
NI cRIO-9936 ................................................................779105-01
NI cRIO-9937 ................................................................779106-01
Expansion Chassis
Ethernet Cables
NI cRIO-9151 chassis....................................................779008-01
SH68-C68-S cable, 2 m ................................................186381-02
R Series Devices
NI PXI-7811R Digital I/O ............................................778800-01
NI PXI-7831R Multifunction I/O ................................778668-01
NI PCI-7831R Multifunction I/O ................................778797-01
CAT5
5 m ............................................................................182219-05
CAT5 Crossover
5 m ............................................................................187375-05
1
Visit ni.com/compactrio for up-to-date information on module availability.
CompactRIO
Ordering Information
NI PS-1 ........................................................................777567-01
NI PS-2
Japan 100 VAC/US 120 VAC ....................................777584-01
North American 240 VAC ........................................777584-05
NI PS-3
Japan 100 VAC/US 120 VAC ....................................777585-01
North American 240 VAC ........................................777585-05
NI PS-4 ..........................................................................778586-90
NI PS-5 ..........................................................................778805-90
NI cRIO-9201 ................................................................779013-01
NI cRIO-9211 .............................................................. 779001-01
NI cRIO-9215 ................................................................779011-01
NI cRIO-9221 ................................................................779014-01
NI cRIO-9233 ................................................................779015-01
11
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For complete product specifications, pricing, and accessory
information, call (866) 265-9891 (U.S. only) or go to ni.com
and search on a four-digit model number listed above.
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