PC/104 DAQ-1278
PC/104 24 + 24 Isolated Digital I/O Module
Galvanically isolated, the DAQ-1278 module is a highly integrated, freely programmable solution for many I/O control interface applications. Different functions can be allocated to the 48 I/O pins by reconfiguring the board control registers. This eliminates the need for different types of low functionality digital boards in a system.
Galvanically isolated, the DAQ-1278 module is a highly integrated, freely programmable solution for many I/O control interface applications. Different functions can be allocated to the 48 I/O pins by reconfiguring the board control registers. This eliminates the need for different types of low functionality digital boards in a system.
A low-power high-density Xilinx FPGA chip contains all the complex logic needed to adapt the DAQ-1278 to different applications. I/O pins are fully programmable with alternate functions that can be allocated to the pins. These include counter timers, incremental encoders, input masking, output pattern triggering, and PWM control outputs. Two non-isolated power MOSFET outputs, capable of sinking up to 2A, can be used for driving power to PWM devices, relays or stepper motors.
The DAQ-1278's FPGA is reprogrammable through the PC/104 (ISA) bus. This allows for easy reconfiguration of the board and firmware customization without removing the board from the stack. The board includes FlexiSet(TM) software to configure the BASE address, IRQ and board I/O setup, and stores it to the onboard non-volatile EEPROM.
POTENTIAL APPLICATIONS:
• Industrial digital control
• Event triggering and timing
• Incremental encoder interfacing
• Versatile digital I/O interfacing
• PLC interfacing
| Architecture: | • PC/104 compliant |
| Input Channels: |
• 48 channel galvanically isolated digital I/O: • 24 inputs (+5V to +24V nominal range) • 24 outputs (+5V to +30V switching range) |
| Output Channels: | • Two 2A current sinking high power MOSFET outputs (non-isolated) |
| Counter/Timers: |
• Three 8254 timer/counters • Software selectable configuration • 8MHz Clock frequency |
| FlexiSet(TM) software: | • FlexiSet(TM) software configurable non-volatile BASE address and IRQ configuration, IRQ sharing supported |
| Programmable FPGA: | • FPGA programmable through ISA bus, in-circuit configuration |
| Communications Channels: | • |
| Bus: | • |
| Base Address Range: | • |
| Interrupts: | • Supports XT and AT interrupts |
| I/O Connector: |
• Two 50-pin digital I/O connectors • 16-pin timer/power I/O connector • 16-bit PC/104 (ISA) bus |
| Relays: | • |
| Digital Input: | • |
| Power Supply: | • +5VDC, +/-5% |
| Power Consumption: | • 1.8W, typical |
| Mechanical: | • 90 x 96 mm (3.550" x 3.775") |
| Operating Temperature: |
• -40°C to +85°C (-40°F to +185°F) • Up to 95%, non-condensing |
| OS Compatibility: |
• Compatible with x86 operating systems: -Linux -Windows CE -Windows XPE |
| Options: |
• Conformal Coating • Custom Connectors |
• Industrial digital control
• Event triggering and timing
• Incremental encoder interfacing
• Versatile digital I/O interfacing
• PLC interfacing


