Features

• Supports a 32-bit 3.3 V or 5 V PCI bus
• 16-CH latching SPDT relay outputs
• Latching relays
• Power saving on relay actuation
• Output status unchanged when power-off
• On-board LED indicators for relay status
• Relay output status read back
• On-board relay driving circuits

Introduction

ADLINK 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.