Portable Modular DAQ Systems
SCC Signal Conditioning Overview
SCC Signal Conditioning Overview
Removable Connectors
All SCC modules except the SCC-TC01 have removable screw-
terminal connectors. This simplifies signal connection and module
swapping for quick reconfiguration. The SCC-TC01 has a
minithermocouple connector for easy sensor connection and more
accurate cold-junction sensing.
J16 slots J9 is controlled by a single DIO line of the DAQ device.
The digital I/O lines of a DAQ device are line configurable, so you can
choose any combination of eight digital I/O modules and relays.
Accessories
The SC-2345 with configurable connectors offers accessories such as a
panel-mount kit, a rack-mount kit for 19 in. cabinets, a stacking kit, and
a handle kit for use with multiple carriers and with DAQPad devices.
Connectivity Options
The SC-2345 with Configurable Connectors is a shielded carrier that
offers custom I/O and interface panelettes to match your sensors.
With interface panelettes, you can add hardware controls and
displays to your system. Blank panelettes are also available to fill
unused positions or for customization. See page 267 for complete
panelette options.
SCC Module
SCC-AI Series
SCC-A10
SCC-LP Series
SCC-TC Series
SCC-RTD01
SCC-SG Series
SCC-ACC01
SCC-CI20
SCC-AOIO
SCC-CO20
SCC-FVO1
SCC-DIO1
SCC-DO01
SCC-SG11
SCC-FT01
SCC-RLY01
Input Types
Isolated analog input
±100 V (10:1 attenuator)
Lowpass filters
Thermocouples, ±100 mV
RTD (2, 3, and 4-wire)
Strain gauges and force/load/torque sensors
Accelerometers
0 to 20 mA current input
Isolated voltage output, ±10 V
Isolated current output, 0 to 20 mA
Frequency-to-voltage
Isolated digital input
Isolated digital output
Shunt calibration
Unconditioned or custom
Switch 5 A at 30 VDC or 250 VAC
Number of
Channels
2
2
2
1
2
2
1
2
1
1
2
1
1
2
2
1
Software
You can develop your SCC DAQ System applications very quickly
and easily with the NI-DAQ driver software or with LabVIEW.
NI-DAQ is the robust driver software that makes it easy to access the
functionality of your data acquisition and signal conditioning
hardware, whether you are a beginner or an advanced user. Helpful
features include:
Automatic Code Generation
– DAQ Assistant is an interactive guide
that steps you through configuring, testing, and programming
measurement tasks and generates the necessary code automatically.
Cleaner Code Development
– Basic and advanced software functions
have been combined into one easy-to-use yet powerful set to help
you build cleaner code and move from basic to advanced
applications without replacing functions.
High-Performance Driver Engine
– Software-timed single-point input
(typically used in control loops) with NI-DAQ achieves rates of up
to 50 kHz. NI-DAQ also delivers maximum I/O system throughput
with a multithreaded driver.
Test Panels
– NI-DAQ lets you test all four device functions before
you begin development with test panels, accessible either from
your development environment, such as LabVIEW, or the
configuration utility.
Scaled Channels
– Easily scale your voltage data into the proper
engineering units using the NI-DAQ Channel Wizard. By choosing
from a list of common sensors and signals or creating your own
custom scale.
LabVIEW Integration
– All NI-DAQ functions offer the waveform data
type, which carries acquired data and timing information directly
into more than 400 built-in analysis routines in LabVIEW, and
displays the results in engineering units on a graph.
Data Acquisition and
Signal Conditioning
Table 1. SCC Signal Conditioning Modules
Power Options
Each SCC system offers three different power options. Depending on
the total power consumption of the SCC modules installed, you can
power the SCC system from (1) the 5 VDC line of a DAQ device or
an external 5 VDC source, (2) an AC power source, or (3) an external
7 to 42 VDC power supply. To determine which power option is best
for your application, see the SC-2345 shielded carrier (page 254) or
visit the online SCC Advisor at
ni.com/advisors
Signal Routing
Many of the SCC analog input modules are dual-channel modules.
When a dual-channel module is installed in the SC-2345, the two
output voltages of the module are routed to two input channels of
the DAQ device, channels X and X+8, where X is any integer
0 through 7. For example, if a dual-channel module is installed in the
J1 socket of the SC-2345, the output voltages are routed to input
channels 0 and 8 of the E Series DAQ device.
Digital modules connect directly to individual digital I/O lines of the
DAQ device. For example, a digital output module installed in any of
Operating System Compatibility
All modules work with Windows 2000/NT/XP
For information on other operating systems such as Linux and
Mac OS X see page 187.
252
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