Advantech​ PCL-81601

Product Name​
High-Resolution Modular Analog Input DAS Module
Product Introduction​
Modular data acquisition module for ISA-based industrial computers. It provides 16 differential analog inputs with 16-bit resolution and programmable gain. Designed for high-accuracy measurement in noisy industrial environments.
Category:
Description
Technical Specifications​
  • Analog Inputs: 16 differential channels
  • Resolution: 16 bits
  • Conversion Time: 8.5 µs
  • Max Sampling Rate: 100 kHz
  • Input Range: ±10, ±5, ±2.5, ±1.25 V and 0–10, 0–5, 0–2.5, 0–1.25 V
  • Input Impedance: >10 MΩ
  • Overvoltage Tolerance: ±15 V
  • Connector: DB-37 female
  • Digital I/O: 16 input channels, 16 output channels
  • Power: +5 V and +12 V from ISA bus
  • Dimensions: 337 × 112 mm
Functional Features​
  • Programmable gain x1, x2, x4, x8
  • Auto channel scanning
  • Metal-shielded A/D module
  • Programmable DMA and IRQ
  • Modular expansion via piggyback connectors
  • Optional 16-bit D/A submodule
Application Scenarios​
  • Laboratory data acquisition
  • Industrial measurement
  • Test and inspection systems
  • Process signal monitoring
  • Machine retrofit projects
Working Principle​
The A/D converter samples analog input voltages, converts them to 16-bit digital values, and transfers data to the host through programmed I/O, interrupt, or DMA. Programmable gain scales small signals before conversion.
Installation Requirements​
  • 16-bit ISA slot
  • Shielded analog cabling
  • Proper grounding
  • Driver and library support for legacy OS
Usage Notes​
  • Avoid exceeding ±15 V input.
  • Use differential wiring for noisy environments.
  • Set IRQ and DMA channels to avoid conflict.
  • Keep analog and digital grounds separated where recommended.
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