Single Board Computer 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.
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.
Features
Isolated Digital I/O
48 channel galvanically isolated digital I/O:
- 24 inputs (+5V to +24V nominal range)
- 24 outputs (+5V to +30V switching range)
MOSFET outputs
Two 2A current sinking high power MOSFET outputs (non-isolated)
Counter/timers
Three 8254 timer/counters
Software selectable configuration
8MHz Clock frequency
Programmable I/O pin functions
Optional I/O pin functions freely programmable in FPGA:
- Input masking and complex interrupt modes
- Counters up to 16-bits
- Up to 8 incremental encoder channels
- PWM outputs and drive for stepper motors
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
Connectors
Two 50-pin digital I/O connectors
16-pin timer/power I/O connector
16-bit PC/104 (ISA) bus
Interrupts
Supports XT and AT interrupts
OS Compatibility
Compatible with x86 operating systems:
- Linux
- Windows CE
- Windows XPe
Physical Characteristics
Operating Temperature Range
-40° to +85°C
Humidity
Up to 95%, non-condensing
Power Input
+5V DC, +/-5%
Power Consumption
1.8W, typical
Dimensions
90 x 96mm (3.550" x 3.775")
