• 4I36-1 8 channel quadrature counter card

The 4I36 is a stackable PC/104 card with eight 32 bit up/down counters with quadrature count inputs and per channel index inputs.  The 4I36 is intended for robotic, motor control, measurement, and instrumentation applications.  The 4I36 has selectable TTL or RS-422 levels on its quadrature and index inputs.  TTL or RS-422 operation is jumper selectable in groups of two channels.  The TTL inputs have pullup resistors and RC / Schmitt filtering.  The differential RS-422 inputs are suited for longer cable lengths and have optional termination.  24 general purpose I/O bits capable of sinking 24 mA are provided control applications.  The encoder connectors are compatible with the 4I30, and the I/O connector is compatible standard I/O module racks.  The 4I36 counters can count in normal quadrature mode (4X) or up/down mode.  Digital filtering is used on encoder inputs to reject input noise.  The 4I36 counters may cleared individually, or all counters may be cleared simultaneously.  Each counter has a option to be cleared by either the rising or falling edge of the index signal.  Maximum count rate of the 4I36 with TTL inputs is 4 million counts per second.  Maximum count rate with RS-422 inputs is 10 million counts per second.  Count range is -2,147,483,648 to +2,147,483,647 or 0 to 4,294,967,295.  Any counter may be configured to provide a timing reference for velocity calculations instead of quadrature input.  This timing reference is a 32 bit up counter running at 48 MHz +- .01%.  The 4I36 is a 16 bit card and uses an index register to access the many registers on the chip, the index register has an auto-increment function that allows all 8 of the 32 bit counters to be read in only 17 16 bit I/O read instructions. The 4I36 uses a FPGA chip for all counting and I/O so can be easily upgraded or modified in the field for specific requirements.  The FPGA configuration flash memory can be updated from the host, no special cable or adapters are required.

Write a review

Please login or register to review

4I36-1 8 channel quadrature counter card

  • US$229.00


  • 10 or more US$183.00
  • 25 or more US$174.00
  • 100 or more US$165.00