Omron CP1W-ADB21 Analog Input Option Board

USD 104.53

2-channel analog input option board, 0-10 VDC or 0-20 mA, 1/4000 voltage resolution, 1/2000 current resolution.

SKU Omron-CP1W-ADB21 Category
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Omron CP1W-ADB21 Analog Input Option Board

Model Identifier CP1W-ADB21
Official Part Number CP1W-ADB21
GTIN Standard NA

Technical Overview

Omron CP1W-ADB21 is a CP1-series CPU Unit option board that adds two analog input channels for 0 to 10 VDC or 0 to 20 mA signals. Official Omron documentation lists 1/4000 resolution for voltage input and 1/2000 resolution for current input, with rated overrange capability to 15 V or 30 mA. The board is intended for mounting in a CPU Unit option slot and is used as a compact analog input interface for CP1L/CP2E-class controllers.

Key Features

  • 2 analog input channels
  • 0 to 10 VDC input range
  • 0 to 20 mA input range
  • 1/4000 resolution for voltage input
  • 1/2000 resolution for current input
  • Maximum rated input: 0 to 15 V or 0 to 30 mA
  • No isolation between analog I/O terminals and internal circuits
  • Designed for CPU Unit option board slot mounting

Dual-channel analog acquisition for compact CP1-series PLCs with selectable voltage or current inputs.

Technical Specification Matrix

ParameterValue
Analog input channels2
Input signal range0 to 10 VDC; 0 to 20 mA
Max. rated input0 to 15 V; 0 to 30 mA
External input impedance200 kΩ min. (voltage); Approx. 250 Ω (current)
Resolution1/4000 (full scale) for voltage; 1/2000 (full scale) for current
Overall accuracy at 25°C±0.5% (full scale) voltage; ±0.6% (full scale) current
Overall accuracy at 0 to 60°C±1.0% (full scale) voltage; ±1.2% (full scale) current
Overall accuracy at -20 to 0°C±1.3% (full scale) voltage; ±1.5% (full scale) current
A/D conversion data0000 to 0FA0 Hex (voltage); 0000 to 07D0 Hex (current)
Averaging functionNone
Isolation methodNo isolation between analog I/O terminals and internal circuits
Current consumption5 VDC: 20 mA max.
MountingCPU Unit option board slot
Compatible documented useCP1L CPU Unit option slot; also listed in CP2E documentation for CP1-series analog option board support
Cycle time (typical values)16~40 ms at 1 ms; 20~60 ms at 10 ms; 20~100 ms at 20 ms

Industrial Applications

1. Process transmitter digitization

Interfaces a 0-10 V or 4-20 mA class process transmitter to a CP1-series PLC for level, pressure, or flow feedback.

Problem Solved

Converts common industrial analog sensor outputs into PLC-readable values with sufficient resolution for control loops.

0-10 VDC0-20 mA1/4000 resolutionprocess transmitterPLC analog input

2. Variable-speed setpoint acquisition

Reads analog setpoints from potentiometers, signal conditioners, or supervisory controllers in compact machine panels.

Problem Solved

Enables stable acquisition of analog command signals without needing a large external analog module.

analog setpointcompact PLCoption boardsignal conditioningmachine control

3. Retrofit of legacy analog instrumentation

Adds two analog input points to existing CP1L-class controls where cabinet space and power budget are limited.

Problem Solved

Provides a small-footprint upgrade path for older machines requiring analog feedback without replacing the CPU platform.

retrofitlegacy instrumentationcompact footprint5 VDC consumptionoption slot
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