Overview

PCI-7256 is a 16-CH latching relay outputs and 16-CH isolated DI card. All relays are Form C type,

which are suitable for device connection with ON/OFF control. With latching relays, the PCI-7256 has the

advantage of power saving. The status of each latching relay output is represented by an on-board LED. When

the relay is in SET condition, its corresponding LED will turn ON, and on the contrary, it is OFF. Latching relays

also features unchanged status even when the system power is turned off, so that. tThe PCI-7256 is suitable

for critical applications which need to keep output status when fault conditions happen.

All of the digital input channels are non-polarity and optically isolated. Users can set for each digital input by

using RC filter or not. The PCI-7256 device also features the change-of-state (COS) interrupt. It means when

any of these digital inputs changes its state, an interrupt will be generated for user to handle this external

event.