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Analog I/O module PFAP401-QA2C PICO PRO D4
digitalRS-485Modbus

Analog I/O module - PFAP401-QA2C PICO PRO D4 - ELECTREX - digital / RS-485 / Modbus
Analog I/O module - PFAP401-QA2C PICO PRO D4 - ELECTREX - digital / RS-485 / Modbus
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Characteristics

Signal type
analog, digital
Interface
RS-485, Modbus
Number of inputs/outputs
2 digital inputs, 2 analog outputs
Type
remote
Mounting
DIN rail
Other characteristics
programmable, compact, configurable

Description

Code: PFAP401-QA2C

Product type: Intelligent Input / Output & Sensors Device

Overview:
  • 2 digital inputs, 2 digital outputs, and 2 analog outputs, each with separate common terminals.
  • Opto-isolated digital inputs with debounce filtering for pulse counting or remote status monitoring.
  • Opto-isolated transistor digital outputs (rated 27 Vdc, 27 mA in accordance with DIN 43864) configurable as outputs for internal alarms or as remotely controlled output channels.
  • Galvanically isolated analog outputs supporting 4–20 mA or 0–20 mA signals, providing high accuracy and long-term stability.
  • Includes 8 configurable alarms which can drive digital outputs and/or generate status values in Modbus registers.
  • Modbus RTU communication over RS485 and remote firmware upgrade capability.
  • LED indicators: one power LED, one status LED, one RS485 communication LED.
  • DIN rail enclosure: 4 modules.
  • Power supply: 230–240 Vac.


Features:
  • Opto-isolated digital inputs with debounce filtering.
  • Pulse counting and remote status monitoring functionality.
  • Opto-isolated transistor digital outputs (27 Vdc, 27 mA, DIN 43864).
  • Galvanically isolated analog outputs (4–20 mA or 0–20 mA).
  • 8 configurable alarms mapped to outputs or Modbus registers.
  • Modbus RTU over RS485.
  • Remote firmware upgrade.
  • Power, status and RS485 LEDs for local diagnostics.
  • Compact DIN-rail 4-module enclosure.


Technical specifications:
  • Code: PFAP401-QA2C
  • Commercial name: PICO PRO D4
  • Digital inputs: 2 (opto-isolated, debounce filtering)
  • Digital outputs: 2 (opto-isolated transistor outputs, 27 Vdc, 27 mA, DIN 43864)
  • Analog outputs: 2 (galvanically isolated, configurable 4–20 mA or 0–20 mA)
  • Common terminals: Separate commons for each channel group (4 commons)
  • Alarms: 8 configurable alarms (can drive digital outputs and/or Modbus registers)
  • Communication: Modbus RTU over RS485
  • Firmware: Remote firmware upgrade capability
  • LEDs: Power LED, Status LED, RS485 communication LED
  • Enclosure: DIN rail, 4 modules
  • Power supply: 230–240 Vac
  • Typical applications: pulse counting, remote status monitoring, driving outputs/alerts via Modbus

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Intelligent Input / Output & Sensor Devices

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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