Advantech PCIE-1762H, Руководство пользователя

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PCIE-1762H User Manual 8
Configuring Relay Outputs as NC/NO
The PCIE-1762H card’s 16 relay outputs, K0 ~, K15, are single-pole single-throw
(SPST) relays that can be set as normally open (NO) or normally close (NC) (see
Table 2.3) using a jumper. The default settings for K0 ~ K15 are normally open.
Setting the Time to Reset Relay Outputs
Certain users may want the ability to clear each relay output when the system issues
a reset signal on the PCI bus, or to clear relays as part of the system power-on pro-
cess. The PCIE-1762H card satisfies both these needs with the provision of jumper
JP2.
Depending on the application, this capability may allow relay outputs to be set as
“OFF” without a complete shutdown of processes controlled by the card.
A complete loss of power to the chip will clear the chip memory. Therefore, regard-
less of how JP2 is configured, if the power to the PCIE-1762H card is disconnected,
the relay initial power-on state will be “OFF” (NC or NO, depending on the user’s set-
tings).
Table 2.3: Jumper Settings for Relay
Relay Output Channel Corresponding Jumper
K0 JP4
K1 JP5
K2 JP6
K3 JP7
K4 JP8
K5 JP9
K6 JP10
K7 JP11
K8 JP12
K9 JP13
K10 JP14
K11 JP15
K12 JP16
K13 JP17
K14 JP18
K15 JP19