PRODUCTS & TECHNOLOGY
Low Profile PCIe Card Offers “Anything I/O”
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A low-cost general purpose programmable industrial I/O card with a one-lane PCIe host interface uses standard parallel port pin-outs and connectors for compatibility with most parallel port interfaced motion control, CNC breakout cards and multi axis step motor drives. The MESA 6I25 from Mesa Electronics allows a motion control performance boost while retaining a reliable real-time PCIe interface. Unlike the parallel port that the 6I25 replaces, each I/O bit has individually programmable direction and function.
Open source FPGA firmware configurations are provided for hardware step/dir generation, pulse width modulation (PWM) generation, analog servo control, absolute (SSI and BISS) and incremental encoder counting, real-time remote I/O, timing, event counting and high-speed serial communication. New configurations can be downloaded over the PCIe interface. All 6I25 I/O bits are 5V tolerant. The 6I25 has a 2-pin DB25F back panel connector and a 26-pin header for the second I/O port. A jumper-selectable power option allows 1A of 5V power to be supplied to the external daughter cards. Four-layer construction is used to minimize radiated EMI and provide optimum ground and power integrity. A series of daughter cards is available for industrial motion control, CNC retrofit, high-speed real-time I/O, RS-422 interfaces, encoder counting and other applications. Price of the 6I25 is $79 in quantity 100.