Portable, Modular Signal Conditioning Modules
NI SCC-CO20 Isolated Current Output
NI SCC-DI01 Optically Isolated Digital Input
Model
Channel
Description
Part Number
Model
Channel
Description
Part Number
SCC-C020
1
Isolated current output
777459-33
SCC-DI01
1
Isolated digital input
777459-11
The National Instruments SCC-CO20 is a single-channel isolated current
output module that can provide up to 20 mA. This module is installation
rated for CAT I, and provides a safe working voltage of ±0 VDC. Because
the modules are isolated, you can connect two NI SCC-CO20 modules in
parallel to provide up to 40 mA.
The National Instruments SCC-DI01 is a single-channel, optically isolated
digital input module for sensing digital signals up to 30 VDC, including
TTL. This digital input module can sense both AC and DC signals and has
a status LED for visual verification of the module input status.
The NI SCC-DI01 fits in any SC-2345 socket J9 through J1±. When
you install an SCC-DI01 in one of these sockets, the digital signal is
automatically routed to a DIO line of the multifunction DAQ device. For
The SCC-CO20 plugs into either analog output socket, J17 or J18.
The voltage applied to the module from an analog output channel of a
multifunction DAQ device sets the current output. Because there are two example, socket J9 connects to digital line 0 of the data acquisition
output channels on DAQ devices, there are a maximum of two SCC-CO20 device. Because you can configure multifunction DAQ devices for input
modules per carrier.
or output on a line-by-line basis, you can have between one and eight
SCC-DI01 modules per carrier.
Note: Use the SCC-CO20 with only multifunction DAQ devices that have
Specifications
analog outputs.
SCC-DI01
Specifications
SCC-CO20
Input Characteristics
Number of channels............................
1
Input range.......................................... 30 VDC or 30 VAC
Output Characteristics
Number of channels............................
1
Digital Logic Levels
Output referencing.............................. Nonreferenced (floating)
Input range.......................................... 0 to 10 V
Output range ....................................... 0 to 20 mA
Voltage compliance............................. 12.5 V
Input current
5 V input ......................................... 1.5 mA
24 V input ....................................... 7.0 mA
Isolation............................................... 42 VDC from computer ground
Safety Isolation
Working common-mode voltage......... ±0 VDC, CAT I
Power Requirements
Digital.................................................. ±1 mW
Environment
Operating temperature ....................... 0 to 50 °C
Relative humidity ................................ 10 to 90ꢀ, noncondensing
Power Requirements
Analog................................................. 175 mW
Digital.................................................. ±45 mW
BUY ONLINE at ni.com or CALL 800 813 3693 (U.S.)
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NI [ National Instruments ]
