CJ1W-DA08V 8-Channel Analog Output Module for PLC Systems

Comprehensive Product Overview

The Omron CJ1W-DA08V represents the pinnacle of analog output technology within Omron's CJ Series Programmable Logic Controller (PLC) ecosystem. Engineered specifically for seamless integration with CJ1 PLC platforms, this industrial-grade analog output module delivers exceptional precision in converting digital command signals into stable analog voltage or current outputs. Designed to excel in demanding industrial automation environments, the CJ1W-DA08V combines rugged construction with advanced signal processing capabilities, ensuring reliable performance in manufacturing facilities, process plants, and mission-critical control systems where signal accuracy directly impacts operational efficiency.

Advanced Technical Features and Operational Benefits

• Multi-Channel Precision Architecture: Eight fully independent output channels with individual configuration capabilities enable simultaneous control of multiple processes while eliminating signal interference between channels
• Extended Signal Range Compatibility: Comprehensive support for industry-standard voltage outputs (0-10V DC, ±10V DC, 1-5V DC) and current outputs (0-20mA, 4-20mA) ensures compatibility with diverse actuators, drives, and instrumentation
• High-Fidelity Signal Conversion: 12-bit plus sign resolution (1/4000 of full scale) provides exceptional signal granularity for precise control of sensitive industrial processes
• Calibration-Grade Accuracy: Maintains ±0.3% voltage output accuracy and ±0.5% current output accuracy across the entire operating temperature range (0-55°C), ensuring consistent performance without recalibration
• Real-Time Response Capability: 1ms per channel conversion speed with simultaneous multi-channel updating enables closed-loop control applications requiring time-critical signal generation
• Advanced Electrical Protection: Integrated photocoupler isolation (1500V AC for 1 minute) between internal logic circuits and output terminals prevents ground loops and protects against voltage transients
• Space-Optimized Industrial Design: Compact 31mm width form factor maximizes control cabinet space utilization while meeting IP20 protection standards for enclosed industrial environments
• Simplified Power Architecture: Backplane-powered operation (5V DC, 0.3A) reduces external wiring complexity and eliminates separate power supply requirements
• Extended Operational Endurance: Engineered for 24/7 continuous operation with MTBF exceeding 100,000 hours, validated through accelerated life testing under industrial environmental conditions
• Manufacturer Warranty Assurance: Backed by Omron's comprehensive 1-year warranty covering material defects and manufacturing faults, providing operational confidence

Targeted Industrial Applications

The CJ1W-DA08V analog output unit delivers precision signal generation capabilities essential for advanced automation systems across multiple industries:

• Chemical Process Control: Precise analog signal generation for proportional valve control, reactor temperature management, and pH regulation systems requiring ±0.1% setpoint accuracy
• Advanced Motion Systems: Torque and velocity command signaling for servo amplifiers, VFD-controlled motors, and precision linear actuators in high-speed packaging machinery
• Automated Manufacturing Lines: Multi-channel control of pneumatic proportional regulators, hydraulic pressure units, and material blending stations in automotive assembly systems
• Industrial Calibration Systems: Generation of reference signals for sensor validation, transducer calibration, and test bench instrumentation requiring NIST-traceable accuracy
• Packaging Machinery: Dynamic control of fill-weight systems, web tensioning mechanisms, and seal bar pressure regulation in high-speed food/pharmaceutical packaging
• Bulk Material Handling: Speed synchronization of conveyor networks, feeder control systems, and automated sorting equipment requiring coordinated multi-axis analog signaling
• Energy Management Systems: Load distribution control for generator sets, fuel valve positioning in combustion systems, and turbine governor control applications

Detailed Technical Specifications

Parameter	Specification
Manufacturer Model Identification	CJ1W-DA08V (Omron Factory Designation)
Output Channel Configuration	8 channels with independent range selection and isolation
Voltage Output Specifications	0 to 10V DC (±0.15V max. ripple), -10 to +10V DC (±0.15V max. ripple), 1 to 5V DC (±0.075V max. ripple)
Current Output Specifications	0 to 20mA (±0.03mA max. ripple), 4 to 20mA (±0.03mA max. ripple) with open-circuit detection
Digital Resolution	12-bit binary + sign bit (effective 13-bit representation, 1/4000 full-scale division)
Voltage Output Accuracy	±0.3% of full scale (23°C ±2°C), ±0.5% full scale (0-55°C operating range)
Current Output Accuracy	±0.5% of full scale (23°C ±2°C), ±0.8% full scale (0-55°C operating range)
Conversion Methodology	Digital-to-analog conversion using successive approximation with internal voltage reference
Output Update Performance	1ms per channel maximum (all channels refresh simultaneously during PLC cycle)
Load Impedance Requirements	Voltage: ≥1kΩ; Current: ≤350Ω (4-20mA), ≤600Ω (0-20mA)
Electrical Isolation	Photocoupler isolation (internal logic to outputs): 1500V AC for 1 minute
Backplane Power Requirements	5V DC ±5% (0.3A maximum), supplied via CJ-series PLC base unit
Environmental Specifications	Operating Temperature: 0 to 55°C (32-131°F); Storage Temperature: -25 to 65°C (-13-149°F)
Humidity Tolerance	10% to 90% relative humidity (non-condensing operation and storage)
Vibration Endurance	10-57Hz: 0.075mm amplitude; 57-150Hz: 9.8m/s² acceleration (IEC 60068-2-6 compliant)
Shock Resistance	147m/s² acceleration (3 shocks in 6 directions, IEC 60068-2-27 compliant)
Physical Dimensions	31mm (W) × 90mm (H) × 65mm (D) / 1.22" × 3.54" × 2.56"
Module Weight	200g ±5% (0.44 lbs)
Compliance Certifications	CE, UL, cULus, UKCA (full certification details available in product documentation)
Manufacturer Warranty Coverage	1-year comprehensive warranty from date of purchase (subject to Omron's standard terms)

System Integration Architecture

The CJ1W-DA08V utilizes Omron's CJ-series modular PLC architecture, connecting directly to the CPU unit via the proprietary backplane bus. This integration ensures deterministic communication with scan-time synchronization between analog outputs and digital processing functions. The module automatically configures within the CJ1 PLC's I/O mapping structure, with each channel addressable through dedicated memory areas in the PLC's data dictionary. Compatibility includes all CJ1 CPU units with system firmware version 4.0 or later, supporting both ladder logic programming and structured text configuration through Omron's CX-Programmer software suite.

Installation and Environmental Considerations

For optimal operational integrity, install the CJ1W-DA08V in a well-ventilated control enclosure maintaining ambient temperatures below 50°C. Allow minimum 10mm clearance above and below the module to ensure adequate convective cooling during continuous operation. Implement star-point grounding for analog output commons and route signal cables separately from AC power lines using dedicated cable trays. In high-noise environments, utilize shielded twisted-pair cabling with drain wires terminated at the source end. For applications exceeding 300V AC nearby, install in grounded metal sub-panels with EMI gasket sealing. Periodic verification of output accuracy using calibrated measurement instrumentation is recommended during scheduled maintenance cycles to ensure long-term signal integrity.