SNAP-ODC-32-SNK-FM OPTO 22, SNAP-ODC-32-SNK-FM Datasheet - Page 3

• Manufacturer Part Number: SNAP-ODC-32-SNK-FM
• Description: SNAP 32-channel High-Density Digital Output Module, 5-60 VDC Load Sinking-FM Approved
• Manufacturer: OPTO 22

Specifications of SNAP-ODC-32-SNK-FM

• Voltage Rating: 24VDC
• Current Rating: 150mA
• Length: 82.8mm
• External Width: 82.55mm
• External Depth: 18.29mm
• Accessory Type: Digital Output Module

NAP mounting rack
OptoTerminal-G20
SNAP high-density digital
modules have a
diagnostic port for
commissioning and
troubleshooting using
the optional
OptoTerminal-G20
operator interface
terminal. The
OptoTerminal-G20
displays the status of a
high-density digital module’s points on a two-line LCD display
and can also be used to turn output points on and off. See
Comparing SNAP Digital Modules
IMPORTANT: SNAP high-density digital modules differ from
each other and from 4-channel SNAP digital modules in
several critical areas, including electrical capabilities and I/O
performance.
You must consider these differences when deciding which
SNAP digital module to use for an application. For example,
while a SNAP-IDC-32 digital input module provides 32 I/O
points on one module, it does not provide the channel-to-
channel isolation of a SNAP-IDC-16 with 16 channels or a
SNAP-IDC5 with 4. See the table
Density and 4-Channel Digital Modules” on page 4
comparison of capabilities.
Counting
Digital counting is an important area in which HDD input
modules differ from 4-channel SNAP digital input modules.
Opto 22 has traditionally provided counting capability for any
© 2006–2010 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP-ODC-32-
SNK module
SNAP High-Density Digital I/O Modules
NOTE: This cable does not work with SNAP-ODC-32-SRC modules.
NOTE: For the SNAP-IDC-32N module, you must use 15 volt or 24 volt
G1 or G4 modules. The 5 volt modules will not work.
SALES 800-321-6786 • 951-695-3000 • FAX [phone] • [e-mail] • SUPPORT 800-835-6786 • 951-695-3080 • FAX [phone] • [e-mail]
“Comparing SNAP High-
OptoTerminal-G20
for a
SNAP-HD-G4F6 header cable
Opto 22 form 1547, the SNAP High-Density Digital Modules
User’ s Guide, for more information.
Connecting to G4 Digital I/O
SNAP-ODC-32-SNK digital output modules and SNAP-IDC-32N
digital input modules can connect to G4PB16 mounting racks
using the SNAP-HD-G4F6 header cable. This cable allows
older G4 (or even G1) digital I/O systems to take advantage of
modern Opto 22 products like SNAP PAC controllers, SNAP
PAC brains, and PAC Project software.
For more information, see form #1756, the SNAP TEX Cables
and Breakout Boards Data Sheet.
digital input point when used with a brain that supports high-
speed digital features. This counting happens in the brain, not
in the module.
SNAP high-density digital modules introduce a different kind
of counting, where the counting occurs on the module itself.
While the module uses a 16-bit counter (counting only to
65,535), the I/O processor used with the module accumulates
counts to 32 bits by periodically getting and clearing the
module’s counts, and adding each new count to what it
already has for that point. However, this is not high-speed
counting because it is done on the module, and both the HDD
module’s speed and communication speed between the brain
and the module are limited. Note that counting speed on HDD
modules is not deterministic and will vary.
However, this slower counting rate works well for many
applications that involve counting at slower speeds—for
example, rotating shafts, flow meters with pulsed outputs, and
electrical meters tuned to slower speeds.
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
G4PB16 mounting racks
The SNAP-HD-G4F6 header cable connects a
single SNAP-ODC-32-SNK digital output module
or SNAP-IDC-32N digital input module on a
SNAP mounting rack to two G4 (or G1)
mounting racks with header connectors.
With this connection, older I/O systems can be
integrated into a modern SNAP I/O system and
take advantage of Ethernet networking, SNAP
PAC controllers, and PAC Project software.
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