USB-LT02 Users Manual (Rev 1.0)
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26-
http://www.daqsystem.com
A.3 Application Circuit (Isolation Input/Output)
It is used in the automations that used PC in case of USB-LT02 in order to simply
input/output that it used the established serial (RS232), parallel (printer) ports. The
advantage of USB-LT02 has no program confliction because of using exclusive USB
source, on the other hand, RS232 and printer ports have a confliction between programs
because of using common source. Also, control Input/output is possible as provide 31 I/O.
If it exchange an input and output between different equipment like factory automations
etc., it use a photo-coupler isolation in order to not to affect with mutual interference and
influence at the below pictures.
Board
Power
IN
External
Device
R
External Power
< Photo-coupler Input Circuit>
Board
Power
OUTN
External
Device
R
External Power
<Photo-coupler Output Circuit>
A register value at the above pictures can use properly selection which it fit to the
external power. The industry power mainly uses 5V, 12V, 24V, 48V.
Summary of Contents for USB-LT02
Page 8: ...USB LT02 Users Manual Rev 1 0 8 http www daqsystem com Figure 3 2 System Properties window...
Page 9: ...USB LT02 Users Manual Rev 1 0 9 http www daqsystem com Figure 3 3 Device Manager Window...
Page 21: ...USB LT02 Users Manual Rev 1 0 21 http www daqsystem com Figure 4 9 When All Output Click...
