Contec DAI16-4(USB), User Manual

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3. Setup
DAI16-4(USB)
25
256K-word memory
The module can buffer a maximum of 256K of D/A conversion data within the module. The data
stored in the USB module via USB transfer is progressively converted from digital to analog in
accordance with the timer setting.
The share of memory is available, and the memory size per channel is up to 64k-word at multi-channel
mode with 4 channels.
Data output sizes greater than 256K can be handled by setting new data in the module's memory
before the existing data is used up.
Even if the DAI16-4(FIT)GY is used, the size of memory used for storing the conversion data has
no change.
3.10. Connecting an External Power Supply
This module must be connected with an external power supply (in a self-powered state).
Connect the external power supply to the +5 VDC input terminal.
Figure 3.12. +5 VDC Input Terminal Pinouts
When using the supplied AC adapter [POA200-20-2], please connect directly to the input terminals.
Figure 3.13. Connecting the AC Adapter POA200-20-2
Beside the AC adapter, a power supply for installation on a DIN rail is also available (as an option).
Use the appropriate power supply depending on the operating environment and application.
CAUTION
5VDC
FG
Vi-
Vi+
Power supply(GND) Vi-
Power supply(5V) Vi+
FG Frame ground
2ch
1ch 0ch 1ch
256K data memory
The module will run out of conversion data if
insufficient data is sent to the module.
0ch 2ch 1ch 0ch