Advantech PCL-720 Digital I/O and Counter Card
Advantech Digital Input Board. Frequency Range: 1 MHz to 2.6 MHz, Voltage / Current Range: +5 V @ 500 mA.
- Model
- Advantech PCL-720
- Calibration
- Available on request
- Price
- $650
- Status
- In stock
- RFQ ref
- PCL-720
This unit
The Advantech PCL-720 is an ISA bus digital I/O and counter card for PC-compatible systems, delivering 32 independent digital input channels and 32 digital output channels alongside three programmable 16-bit counter/timer channels. Built around the Intel 8253/8254 programmable interval timer, the card supports six software-selectable operational modes including rate generation, event counting, real-time clock, one-shot timing, delay generation, and square wave generation. TTL/DTL compatible I/O operates through 74LS244 driver/buffer circuits, providing high output drive capacity and minimal input loading.
Programmable counter frequencies reach 2.6 MHz with count values from 0 to 65,535.
Technical Specifications
Digital I/O Architecture- 32 input channels, 32 output channels (TTL/DTL compatible)
- 74LS244 driver/buffer circuits for signal conditioning
- Five 20-pin insulation displacement connectors (two rear-panel accessible, three onboard)
- Selectable I/O base address: 200h to 3F8h (four consecutive ports) Counter/Timer Performance
- Three independent 16-bit counters (Intel 8253/8254)
- Programmable count rate to 2.6 MHz
- Count range: 0 to 65,535
- Six operational modes: rate generator, event counter, real-time clock, digital one-shot, time delay generator, square wave generator
- Onboard clock sources: 1 MHz, 100 kHz, 10 kHz (jumper-selectable, with frequency doubling/halving/quartering capability) Physical & Environmental
- Dimensions: 205 mm × 100 mm (8" × 3.9")
- Breadboard area: 651 plated-through holes (31 × 21 @ 0.10" pitch)
- Power: +5 V @ 500 mA typical
- Operating temperature: 0 to +60 °C
- Storage temperature: -20 to +70 °C
- Humidity: 5 to 95% RH non-condensing (IEC 68-2-3)
Key Features
- Onboard breadboard for custom circuit integration
- Jumper-configurable clock source selection
- PCL-720+ variant compatibility (interchangeable)
Typical Applications Industrial automation, process control, real-time event logging, pulse measurement, frequency generation, and timing applications requiring flexible counter modes.
Compatibility & Integration Supports daughter boards including PCLD-782 (16-ch opto-isolated input), PCLD-785 (16-ch relay output), and PCLD-786 (8-ch SSR).
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 1 MHz to 2.6 MHz | Voltage / Current Range: '+5 V @ 500 mA |
Advantech PCL-720 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Advantech PCL-720. Calibration covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Advantech PCL-720 faults: ESD-damaged input protection, failed driver ICs, connector pin damage. Most failures involve ESD-damaged input protection circuitry, failed logic driver ICs, or mechanical connector pin damage. Board-level component replacement is standard practice.
Advantech PCL-720 price
This Advantech PCL-720 is listed at $650. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Advantech PCL-720 calibration cost
NIST-traceable calibration for the Advantech PCL-720 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
