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Analog I/O module PFAP401-RQ2C PICO PRO D4
digitalModbusRS-485

Analog I/O module - PFAP401-RQ2C PICO PRO D4 - ELECTREX - digital / Modbus / RS-485
Analog I/O module - PFAP401-RQ2C PICO PRO D4 - ELECTREX - digital / Modbus / RS-485
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Characteristics

Signal type
analog, digital
Interface
Modbus, RS-485, Modbus RTU
Number of inputs/outputs
2 digital inputs, 4 analog inputs, 2-O
Type
remote
Mounting
DIN rail-mounted
Other characteristics
configurable

Description

Product Overview
PICO PRO D4 PFAP401-RQ2C is an intelligent input/output and sensor module designed for industrial monitoring and control. It provides 4 configurable analog inputs, 2 opto-isolated digital inputs and 2 opto-isolated transistor digital outputs with separate commons. Analog inputs accept -10 to 10 V (compatible with 0–10 V, 0–5 V, -5–5 V) and support 4–20 mA via a 200 Ω shunt. Digital inputs include debounce filtering for pulse counting or status signalling. Communication is Modbus‑RTU over RS485; firmware can be upgraded remotely. The device is DIN-rail mountable, 4-module width, and powered by 230–240 VAC. LED indicators show power, status and RS485 activity.

Features
  • 4 analog inputs configurable for voltage or current sensors
  • 2 opto-isolated digital inputs with debounce filter (pulse counting, status)
  • 2 opto-isolated transistor digital outputs (27 VDC / 27 mA) with separate commons
  • Up to 8 configurable alarms mapped to outputs and/or Modbus registers
  • LED indicators: power, status, RS485 communication
  • Modbus‑RTU over RS485; remote firmware upgrade
  • DIN-rail mounting, 4-module width


Technical specifications
  • Model: PFAP401-RQ2C
  • Commercial name: PICO PRO D4
  • Function: Intelligent input/output & sensor module
  • Analog inputs: 4 channels; range -10 to 10 V (compatible 0–10 V, 0–5 V, -5–5 V); 4–20 mA with 200 Ω resistor
  • Digital inputs: 2 opto-isolated channels with debounce filter
  • Digital outputs: 2 opto-isolated transistor outputs; 27 VDC / 27 mA (DIN 43864)
  • Alarms: up to 8 configurable alarms for driving outputs or setting Modbus register states
  • Communication: Modbus‑RTU over RS485
  • Power supply: 230–240 VAC
  • Mounting: DIN-rail; width: 4 modules
  • LEDs: power, status, RS485
  • Firmware: remotely upgradeable


Applications
  • Industrial process monitoring and control
  • Building automation and energy management
  • Remote status acquisition and alarm signalling
  • OEM control panels and machine interfaces


Ordering information
  • Code: PFAP401-RQ2C
  • Designation: PICO PRO D4 — Intelligent I/O & sensor module, 4AI/2DI/2DO
  • Mounting: DIN-rail, 4-module width

Catalogs

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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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