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PCI-DIO01 User’s Manual
33
4-3 PCI-DIO6401 Input Circuit
IN0_COM0
IN0_00
DIN_00
2.4K
VCC
IN0_01
DIN_01
VCC
IN0_07
DIN_07
VCC
2.4K
2.4K
[Figure 4-4. Digital Input Circuit IN_00 ~ 07]
In [Figure 4-2], the digital input circuit is insulated by a port coupler. When a positive voltage is
applied to “IN0_COM0” and a negative voltage is applied to the digital input, a current flows
through the diode inside as a photo coupler, and the output transistor becomes energized
according to the flowing current.
The board has 8 circuits as above. That is, there are IN0-COM and IN_COM for every 8 photo
couplers, so there are 8 total IN0_COMs (IN0_COM0 ~ IN0_COM7). If you want a completely
isolated circuit, it is better to use an external power supply rather than using the board power
supply.
In the case of input, the 40-pin (20x2, 2.54mm pitch) right-angle header connector on the
board is connected to the 37-pin terminal board, so the pin map should be used as follows. The
Содержание PCI-DIO64 Series
Страница 35: ...PCI DIO01 User s Manual 34 IN_COM part is 17 18 19 20 in Table 2 and GND is used when inputting external power...
Страница 52: ...PCI DIO01 User s Manual 51 9 Exit Button Quit the application...
Страница 55: ...PCI DIO01 User s Manual 54 MEMO Contact Point Web sit https www daqsystem com Email postmaster daqsystem com...