Comprehensive Product Summary: Dataforth MAQ20-IO – DIN Rail 8-Channel Current Output Module

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### 1. Product Overview

Product Name: MAQ20-IO
Model Number: MAQ20-IO
Series: MAQ®20 Industrial Data Acquisition and Control System
Article Number: MAQ20-IO
Manufacturer: Dataforth Corporation
Country of Origin: USA
Manufacturer Address: 3331 E. Hemisphere Loop, Tucson, AZ 85706, USA
Website: [www.dataforth.com](http://www.dataforth.com)
Support Contact: techinfo@dataforth.com | Phone: +1 520-741-1404 | Toll-Free: 800-444-7644

The MAQ20-IO is an 8-channel isolated current output module designed for industrial process control and data acquisition applications. It is part of Dataforth’s MAQ®20 modular system, which integrates high-performance signal conditioning, data acquisition, and control in a rugged, DIN rail-mounted architecture. The module provides precision current outputs of 0–20mA or 4–20mA, with per-channel configuration and isolation, ensuring reliable operation in harsh industrial environments.

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### 2. Key Features

- Eight Isolated Current Output Channels: Each channel independently configurable for 0–20mA or 4–20mA output ranges.
- High Accuracy and Stability: ±0.040% span accuracy, ±0.030% linearity, and low temperature coefficients (±25ppm/°C zero, ±35ppm/°C span).
- Robust Electrical Isolation: 1500Vrms channel-to-bus isolation and 300Vrms channel-to-channel isolation.
- Industrial Protection: 40Vrms continuous overload protection and ANSI/IEEE C37.90.1 transient protection.
- Wide Power Supply Range: Operates from 7–34VDC system power.
- High-Speed Performance: 100Hz bandwidth and 1600 channels per second update rate.
- Programmable Output Burst Mode: Supports user-defined waveforms or data streams with up to 100 data points per channel.
- Hot-Swappable Design: Modules can be inserted or removed without system shutdown.
- Automatic Module Registration: System auto-detects and assigns registration numbers for each module.
- Rugged Industrial Operation: Rated for -40°C to +85°C and 0–95% non-condensing humidity.
- Compliance and Safety: CE compliant, UL/CUL Class I Division 2 pending, ATEX pending.
- Software Integration: Compatible with Dataforth’s ReDAQ Shape and MAQ20 Configuration Software Tool for setup, monitoring, and control.

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### 3. Technical Specifications

Electrical Characteristics:
- Output Ranges: 0–20mA (default), 4–20mA selectable per channel
- Compliance Voltage: 15V
- Load Range: 0–600Ω
- Over-Range Capability: Up to 21.5mA
- Current Limit: 26mA
- Output Protection: 40Vrms continuous, ANSI/IEEE C37.90.1 transient
- Common Mode Voltage (CMV):
- Channel-to-Bus: 1500Vrms for 1 minute
- Channel-to-Channel: 300Vrms
- Common Mode Rejection (CMR): 75dB @ 50/60Hz

Performance:
- Accuracy: ±0.040% of span (includes linearity, hysteresis, repeatability)
- Linearity/Conformity: ±0.030% of span
- Resolution: 0.024% of span
- Bandwidth: 100Hz
- Update Rate: 1600 channels per second
- Power Consumption: 450mA (no load), 650mA (full load)

Physical Characteristics:
- Dimensions: 114.6mm (H) × 15.3mm (W) × 82.8mm (D)
- Weight: Approx. 150g (typical)
- Mounting: DIN rail, mates with MAQ20 backbone
- Material: Industrial-grade thermoplastic housing with ventilation slots

Environmental:
- Operating Temperature: -40°C to +85°C
- Storage Temperature: -40°C to +85°C
- Humidity: 0–95% non-condensing
- Vibration/Shock: Designed for industrial environments

EMC and Safety:
- Emissions: EN61000-6-4 ISM Group 1, Class A (radiated and conducted)
- Immunity: EN61000-6-2 ISM Group 1, Performance A ±0.5% span error
- ESD/EFT: Performance B
- Certifications: CE, UL/CUL (pending), ATEX (pending)

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### 4. Functionality

The MAQ20-IO module provides eight isolated current output channels for process control and analog signal generation. Each channel can be configured independently for 0–20mA or 4–20mA operation. The module interfaces with the MAQ20 backbone, which distributes power and communication signals from the MAQ20-COMx communication module.

Operation Principle:
- The module converts digital command values into precise analog current outputs.
- Each channel’s output is controlled via Modbus-compatible registers accessible through the system’s communication module.
- Channels can be programmed for static output, default fail-safe output, or dynamic waveform generation using Burst Mode.

Use Cases and Applications:
- Industrial process control and automation
- PLC and SCADA system integration
- Analog actuator and valve control
- Test and measurement systems
- Remote I/O expansion for distributed control systems
- Simulation of sensor outputs for system testing

Compatibility:
- Fully compatible with MAQ20-COMx communication modules (Ethernet, USB, RS-232/RS-485).
- Integrates with MAQ20-BKPLx backbones and MAQ20-PWR3 power supply modules.
- Supported by Dataforth’s ReDAQ Shape and Configuration Software Tool.

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### 5. Components & Accessories

Included Components:
- MAQ20-IO module
- Pluggable terminal block for field wiring (20-position)
- Integrated DIN rail clip for mounting
- User documentation and quick start guide

Terminal Block Connections (Top to Bottom):
1–2: CH0 +OUT / -OUT
3–4: CH1 +OUT / -OUT
5: Shield
6–7: CH2 +OUT / -OUT
8–9: CH3 +OUT / -OUT
10: Shield
11–12: CH4 +OUT / -OUT
13–14: CH5 +OUT / -OUT
15: Shield
16–17: CH6 +OUT / -OUT
18–19: CH7 +OUT / -OUT
20: Shield

Optional Accessories:
- MAQ20-BKPLx backplanes (various channel capacities)
- MAQ20-PWR3 auxiliary power supply module
- MAQ20-940 ReDAQ Shape Software (Developer/User versions)
- MAQ20-945 Configuration Software Tool
- MAQ20-952 IPEMotion Software

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### 6. Installation & Setup

Mounting Requirements:
- Mounts on standard DIN rail (35mm).
- Can be installed on continuous panels or plates.
- Modules snap securely into place using integrated clips.

Installation Steps:
1. Orient the module with the field connector facing outward.
2. Hook the top rear corner onto the DIN rail.
3. Rotate downward until the module snaps into place.
4. Connect the pluggable terminal block to field wiring.

System Setup:
1. Install MAQ20-BKPLx backbone and MAQ20-COMx communication module.
2. Apply system power (7–34VDC).
3. Insert MAQ20-IO module; automatic registration occurs within 1 second.
4. Configure channels using ReDAQ Shape or Configuration Software Tool.

Configuration:
- Each channel’s range, default output, and waveform parameters are set via Modbus registers.
- Settings can be stored in EEPROM for retention after power cycles.

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### 7. Performance & Capabilities

Speed and Throughput:
- 1600 channels per second update rate ensures real-time responsiveness.
- 100Hz analog bandwidth supports dynamic control applications.

Capacity:
- Up to 24 I/O modules per system (384 channels total).
- Each module supports 8 fully isolated outputs.

Efficiency and Reliability:
- Distributed processing architecture reduces communication overhead.
- Hot-swappable design minimizes downtime.
- Automatic detection and registration simplify system expansion.

Limitations:
- Maximum load resistance: 600Ω.
- Output compliance limited to 15V.
- Over-range accuracy not guaranteed beyond standard output range.

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### 8. Standards & Compliance

Quality Management:
- Manufactured under ISO9001:2008-registered quality management system.

Electrical and EMC Compliance:
- EN61000-6-4 (Emissions) – ISM Group 1, Class A
- EN61000-6-2 (Immunity) – ISM Group 1, Performance A
- ANSI/IEEE C37.90.1 transient protection

Safety and Environmental:
- CE compliant for heavy industrial environments
- UL/CUL Class I, Division 2, Groups A, B, C, D (pending)
- ATEX compliance pending for hazardous locations

Regulatory Notes:
- Designed for Class I, Division 2 hazardous locations.
- Meets industrial immunity and surge protection standards.

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### 9. Additional Information

Warranty:
- Hardware: 1-year limited warranty from date of delivery.
- Software: 30-day warranty from delivery.
- Special Products: 60-day warranty.
- Warranty covers defects in materials and workmanship under normal use.
- Excludes damage from misuse, static discharge, or operation beyond specified limits.

Repair and Returns:
- Return Material Authorization (RMA) required for all returns.
- Contact Dataforth Customer Service at +1 520-741-1404 for RMA issuance.
- Ship prepaid to:
Dataforth Corporation, 3331 E. Hemisphere Loop, Tucson, AZ 85706 USA

Support and Maintenance:
- Technical support available via phone and email.
- Software updates and errata available at [www.dataforth.com](http://www.dataforth.com).
- Modules are field-serviceable and hot-swappable.

Software Tools:
- ReDAQ Shape: Graphical HMI design and runtime environment for MAQ20 systems.
- Configuration Software Tool: Simplifies setup, calibration, and channel mapping.
- IPEMotion: Multi-vendor, multi-language integration platform.

Safety Notice:
- Not intended for life-support or critical safety applications.
- Use in such environments is at the user’s own risk.

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### Summary

The Dataforth MAQ20-IO is a precision-engineered, 8-channel isolated current output module designed for demanding industrial automation and data acquisition systems. It delivers high accuracy, robust isolation, and flexible configuration in a compact DIN rail form factor. With advanced features such as programmable output ranges, waveform generation, and hot-swappable installation, the MAQ20-IO provides exceptional performance and reliability for process control, test, and monitoring applications. Its compliance with industrial EMC and safety standards, combined with Dataforth’s ISO-certified manufacturing and comprehensive support, make it a trusted choice for engineers and system integrators seeking scalable, high-performance analog output solutions.