Digital I/O PCI-7256 16-CH Latching Relay Outputs & 16-CH Isolated DI Card Introduction ADLINK's 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 onboard 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 the PCI-7256 is suitable for critical applications which need to keep output status when fault conditions happen. All digital input channels are non-polarity, optically isolated, and may be set to use RC filter or not. The PCI-7256 also features a change-of-state (COS) function that generates an interrupt when any digital input changes its state. Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Supports a 32-bit 3.3 V or 5 V PCI bus 16-CH latching SPDT relays Latching relays Power saving on relay actuation Output status unchanged when power-off Onboard LED indicators for relay status Relay output status read back Onboard relay driving circuits Onboard connectors for external LED connection 16-CH isolated digital inputs 2500 VRMS optical isolation for digital inputs Change-of-state (COS) interrupt Onboard low-pass filtering for digital inputs Two external interrupt sources Onboard isolated +5 V power for dry contact inputs Compact, half-size PCB Board ID ■Operating Systems • Windows 7/Vista/XP/2000/2003 Server • Linux ■Recommended Software • AD-Logger • VB.NET/VC.NET/VB/VC++/BCB/Delphi • DAQBench ■Driver Support • DAQPilot for LabVIEW™ • DAQ-MTLB for MATLAB® • PCIS-DASK for Windows • PCIS-DASK/X for Linux Specifications Relay Output ■ Number of channels: 16 ■ Relay type: Latching SPDT (Form C), latching ■ The output status will keep unchanged when power-off ■ Isolation voltage: 1500 VRMS ■ Contact rating • AC: 125 V @ 0.5 A • DC: 30 V @ 1 A ■ Breakdown voltage: 1000 VRMS ■ Contact resistance: 60 mΩ ■ Relay ON/OFF time • Operate time: 3 ms • Release time: 3 ms ■ LED indicators • Onboard LEDs for relay status • Onboard connectors for external LED connection ■ Expected relay life: • >2x105 operations @ 1 A, 30 VDC • >105 operations @ 0.5 A, 125 VAC ■ Data transfer: programmed I/O Isolated Digital Input ■ Number of channels: 16 ■ Maximum input range: 24 V, non-polarity ■ Digital logic levels • 0-24 V, non-polarity - Input high voltage: 10-24 V - Input low voltage: 0-2 V ■ Input resistance: 4.7 kΩ @ 0.5 W ■ Isolation voltage: 2500 VRMS channel-to-system ■ Interrupt sources: Change-of-state interrupt, digital input channel 0 and 1 ■ Data transfer: programmed I/O Isolated Power Supply ■ Output voltage: +5 V ■ Output current: 170 mA max @ 40˚C General Specifications ■ I/O connector: 68-pin SCSI-II female ■ Operating temperature: 0˚C to 60˚C ■ Storage temperature: -20˚C to 80˚C ■ Relative humidity: 5% to 95%, non-condensing ■ Power requirements +5 V 340 mA typical 980 mA max. (when all relays are activated simultaneously) 2-47 www.adlinktech.com ■ Dimensions (not including connectors) 175 mm x 107 mm Terminal Boards & Cables ■DIN-68S-01 Terminal Board with One 68-pin SCSI-II Connector and DIN-Rail Mounting (Cables are not included.) ■ACL-10569-1 68-pin SCSI-II cable (mating with AMP-787082-7), 1 M * For more information on mating cables, please refer to P2-61/62. Ordering Information ■PCI-7256 16-CH Latching Relay Outputs & 16-CH Isolated DI Card Pin Assignment PCI-7256 ISO5V DI0 DI2 DI4 DI6 DICOM2 DI8 DI10 DI12 DI14 NC0 COM0 NO0 NC1 COM1 NO1 NC2 COM2 NO2 NC3 COM3 NO3 NC4 COM4 NO4 NC5 COM5 NO5 NC6 COM6 NO6 NC7 COM7 NO7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 ISOGND DI1 DI3 DI5 DI7 DICOM1 DI9 DI11 DI13 DI15 NC8 COM8 NO8 NC9 COM9 NO9 NC10 COM10 NO10 NC11 COM11 NO11 NC12 COM12 NO12 NC13 COM13 NO13 NC14 COM14 NO14 NC15 COM15 NO15 Updated 03-28, 2012. ©2012 ADLINK Technology, Inc. All Rights Reserved. All specifications are subject to change without further notice.