Advantech PCI-1718 Series Instrukcja Użytkownika Pobierz pdf (Strona 35)

27 Chapter 3

3.2.8 Setting the Time to Reset Digital Outputs

Some users will want the capability of clearing each digital output when

the system (or PC) issues a reset signal on the PCI bus. Other users will

want to clear their signal outputs only as part of system power-on.

PCI-1718 cards satisfy both these needs with jumper JP21. Depending on

the application, this capability may allow digital outputs to be “OFF”

without requiring a complete shutdown of processes controlled by the

card.

Complete loss of power to the chip clears the chip memory. Thus, no mat-

ter how JP21 is set, if the power to the PCI-1718 card is disconnected, the

digital output channel’s initial power-on state will be “OFF”.

Table 3.8: JP21 Jumper Settings

Jumper Function description

JP21 Keep last status after hot reset.

Reset status after hot reset

(default)

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 93 94

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Advantech PCI-1718 Series Instrukcja Użytkownika Strona 35