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The bus terminals do not provide external power to the SCC modules
installed in the SCC-68 or to the +5V terminal. Refer to the
Considerations
modules in your application.
Power Supply
In most situations, the SCC-68 is powered by the DAQ device, eliminating
the need for an external power supply. The +5V power provided by the
DAQ device is distributed to all components in the SCC-68, including the
+5V screw terminal (pin 8). The +5V power on the DAQ device is current
limited. For more information about the power supply and possible
limitations, refer to the
Using SCC Modules with the SCC-68
The SCC-68 has four SCC slots for integrating signal conditioning into
your applications. Each SCC slot can be used with any analog input or
digital I/O SCC modules. The SCC-68 is not compatible with analog output
or counter SCC modules.
Note
If you use analog input SCC modules with the SCC-68, you must connect
AI SENSE to AI GND, as shown in Figure 11.
SCC-68 User Guide
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section for information about providing power to SCC
Power Supply Considerations
62
AI SENSE
67
AI GND
20
22
54
21
55
Figure 11. Connecting AI SENSE to AI GND
16
Power Supply
section.
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