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Product short description:
  • Four 16-bit TTL counters and four 32-bit RS422 counters
  • Event counter
  • Frequency measurement
  • Quadrature position measurement
  • Pulse-width or periodic rate monitor
  • Watchdog timer with isolated relay output
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Several models with a variety of configurations provide up to ten counter/timer channels for counting events, generating waveform control signals, measuring pulse-widths, periodic rates, or quadrature position and monitoring operations.

Support for internal or external triggering simplifies the synchronization of operations to specific events. Counter functions can use internally generated clocks or an externally supplied clock.

Specifications

Counter/Timers

Counter/timer configuration:
APC482: Ten 16-bit counters – TTL
APC483: Four 16-bit counters – TTL, Four 32-bit counters – RS422
APC484: Six 32-bit counters – RS422
Other I/O mixes can be made available as specials.
Clock frequency: 20MHz.
Field I/O: Front panel SCSI-3 connector.
Speed (with 20MHz internal clock):
Maximum output pulse/square wave freq.: 200nS.
Minimum event pulse width: 100nS.
Minimum pulse width measurement: 100nS.
Minimum period measurement: 200nS.
Mode accuracy (with external clocking):
Waveform generation: Period is ±125nS.
Watchdog: Timeout occurs within ±1 clock cycle.
Pulse/period measurement: ±1 clock cycle.
Internal clocks: Programmable 1.25, 2.5, 5, 10 or 20MHz via the counter control register.
External clocks: Supported on a per-counter basis via clock line. Maximum frequency 8MHz.
Interrupts: Supported for watchdog timer time-out, event count complete, pulse width or periodic rate measurement complete, pulse wave complete (one-shot mode), successive waveform generation (continuous).
Triggering/gate: Programmable via register write or external trigger. Minimum pulse width 100nS. Line may be used for gating of counter.
Counter trigger: Interface for triggering counter functions. Input level is TTL or RS422 differential digital.
Counter input: Interface for events and pulse/period measurements. Also triggers load of watchdog timer register. Level is TTL or RS422 differential digital.
TTL compatibility: VIH = 2.0V and VIL = 0.8V. Inputs are buffered and include 4.7K ohm pull-ups to +5V.
Counter output: Level is TTL or RS422 differential digital.

Digital I/O

I/O channel configuration: 16 bi-directional TTL transceivers. Direction controlled as 16 independent channels.

PCI Bus Compliance

This device meets or exceeds all written PCI local bus specifications per rev. 2.2 dated December 1998.
System base address: This board operates in memory space. It consumes 4K of memory space.
Data transfer bus: Slave with 32, 16, and 8-bit data transfer operation.
Interrupts (INTA#): Interrupt A is used to request an interrupt.

Environmental

Operating temp.: 0 to 70°C or -40 to 85°C (E versions)
Storage temperature: -55 to 125°C.
Relative humidity: 5 to 95% non-condensing.
Power: 320mA at +5V, typical.
MTBF: Hours at 25°C, MIL-HDBK-217F, notice 2. APC482 1,744,259; APC483 1,727,707; APC484 1,708,729

  • Available with both TTL and RS422 driver interface
  • Two 16-bit counters can be combined to create one 32-bit counter
  • 16 bi-directional digital I/O
  • 20MHz clock time base
  • Counter/timer functions:
    • Quadrature position measurement
    • Pulse width modulation
    • Watchdog timer
    • Event counting
    • Frequency measurement
    • Period/pulse-width measurement
    • One-shot/repetitive
    • Extended temperature option (-40 to 85°C)
  • CE marked, FCC Part 15, Class B
PCISW-API-LNX (Log in to download the file)
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Additional information

Weight N/A
Part Number

5025-288: SCSI-3 cable connection to 68 screw terminals, 5028-378: SCSI-2 cable connection to 50 screw terminals, 5025-552: 50 screw terminals, ribbon cable connector

  • Description

    Screw terminal panels simplify field signal wiring. A cable connector provides a clean interface to the I/O board or module.

    Many termination panels have a compact footprint and mount neatly on a DIN rail strip. Other panels are designed for mounting directly onto a standard 19-inch computer rack.

    All of Acromag’s I/O boards have a corresponding termination panel. This convenience saves you the time and hassle of finding a compatible panel or crafting your own.

    For more information see modules user manual.

  • Features & Benefits

    • Available with both TTL and RS422 driver interface
    • Two 16-bit counters can be combined to create one 32-bit counter
    • 16 bi-directional digital I/O
    • 20MHz clock time base
    • Counter/timer functions:
      • Quadrature position measurement
      • Pulse width modulation
      • Watchdog timer
      • Event counting
      • Frequency measurement
      • Period/pulse-width measurement
      • One-shot/repetitive
      • Extended temperature option (-40 to 85°C)
    • CE marked, FCC Part 15, Class B
  • Specs & Data Sheets

  • Software

    PCISW-API-LNX (Log in to download the file)
  • Accessories

    • Compare

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      • Communication Signal Cables
      • Wide assortment of ribbon cables
      $40$600
      Select options
    • Compare

      PCISW-API-LNX: Linux Libraries (download only)

      • Application programming interface with function routines
      • For XMC, CompactPCI, PCI, and PMC modules
      • Includes C source code
      • Download at no charge
      Read more
    • Compare

      PCISW-API-WIN

      • Support for Acromag XMC, PMC, PCI, CompactPCI cards
      $310
      Select options
    • Compare

      PMCSW-API-VXW: VxWorks Libraries

      • VxWorks function libraries for XMC, PMC, PCI and CompactPCI products (except IP carriers)
      • Supports any CPU target with quick modification.
      • API easily convertible for any operating system
      $835
      Select options
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      • DIN rail-mount panels
      • 50 screw terminals on 50-pin connector termination panels
      • 50 screw terminals on SCSI-2 connector termination panels
      • 68 screw terminals on SCSI-3 connector termination panels
      $165$210
      Select options
  • Additional information

    Additional information

    Weight N/A
    Part Number

    5025-288: SCSI-3 cable connection to 68 screw terminals, 5028-378: SCSI-2 cable connection to 50 screw terminals, 5025-552: 50 screw terminals, ribbon cable connector