General Information

• Manufacturer: B&R Industrial Automation (a member of the ABB Group)
• Product Series: 7EX Series (B&R Analog Input Modules)
• Product Type: Single-Channel Analog Input Module
• Status: Active (commercially available as per B&R’s current product portfolio)
• Target Applications: Precision measurement of process variables (e.g., temperature, pressure, flow) in manufacturing, automotive, packaging, and process automation. Compatible with B&R’s Automation PC (AP), Power Panel (PP), and X20 System controllers via the appropriate backplane or interface.

Electrical Specifications

Input Signal Compatibility

• Voltage Inputs:
  • Ranges: ±10 V DC, ±5 V DC, 0–10 V DC, 0–5 V DC (full-scale, FS).
  • Input Impedance: ≥ 10 MΩ (ensures minimal signal loading from high-impedance sensors).
• Current Inputs:
  • Ranges: 4–20 mA DC, 0–20 mA DC (FS).
  • Input Impedance: ≤ 25 Ω (compliant with standard current-loop sensor specifications).
• Thermocouple Inputs (optional, depending on configuration):
  • Types: J, K, T, E, R, S, B, N (common industrial thermocouple types for temperature measurement).
  • Cold-Junction Compensation (CJC): Built-in, with accuracy ±0.5°C (ensures reliable temperature readings without external compensation).
• RTD Inputs (optional, depending on configuration):
  • Types: Pt100, Pt1000 (platinum resistance thermometers).
  • Excitation Current: 1 mA (constant current, for stable resistance-to-voltage conversion).

Measurement Performance

• Resolution: 16-bit ADC (analog-to-digital converter), providing 65,536 discrete values for precise signal quantization.
• Accuracy:
  • Voltage/Current: ±0.1% of full scale (FS) ± 1 least significant bit (LSB) at 25°C (ambient temperature).
  • Thermocouple: ±0.2% of measured value ± 0.5°C (typical, for K-type thermocouple).
  • RTD: ±0.1% of measured value ± 0.1°C (typical, for Pt100 at 0–200°C).
• Sampling Rate: Up to 100 Hz (single-channel mode), supporting real-time signal acquisition for dynamic process monitoring.
• Noise Immunity: Common-mode rejection ratio (CMRR) ≥ 80 dB at 50/60 Hz (minimizes interference from industrial power lines and electromagnetic noise).

Functional Features

1. Configuration Flexibility:
   • Software-configurable input types/ranges via B&R’s Automation Studio engineering software, eliminating the need for hardware jumpers in most cases.
   • Supports hot configuration (parameter adjustments without system shutdown) for on-the-fly adaptation to changing process requirements.
2. Diagnostics & Monitoring:
   • Open-Circuit Detection: Automatically identifies broken sensor wires for current/thermocouple inputs, triggering a diagnostic alert.
   • Overrange Detection: Flags input signals exceeding the configured full-scale range (e.g., >20 mA for a 4–20 mA input).
   • Self-Test: Built-in self-diagnostic routines at power-up and during operation to verify module hardware integrity.
3. Signal Conditioning:
   • Integrated low-pass filters (configurable cutoff frequency: 1 Hz–10 kHz) to suppress high-frequency noise from industrial environments.
   • Galvanic isolation (2.5 kV AC for 1 minute) between the input channels and the module’s internal circuitry, preventing ground loops and EMI interference.

Physical & Environmental Specifications

• Dimensions:
  • 45 mm (Width) × 100 mm (Height) × 120 mm (Depth) (compact design for dense mounting in control cabinets).
• Weight: Approximately 0.3 kg.
• Mounting: DIN rail mounting (compliant with EN 50022 standard, compatible with 35 mm top-hat rails).
• Protection Class: IP20 (dust-protected, suitable for indoor installation in industrial control cabinets).
• Operating Conditions:
  • Temperature Range: 0°C to +60°C (continuous operation); -25°C to +70°C (storage).
  • Relative Humidity: 5% – 95% (non-condensing, to avoid moisture-related electrical faults).
  • Vibration Resistance: 10 g (10 Hz – 500 Hz, per IEC 60068-2-6), ensuring stability in vibrating machinery (e.g., pumps, conveyors).
  • Shock Resistance: 30 g (11 ms duration, per IEC 60068-2-27), protecting against mechanical impacts during installation or operation.

Compatibility & Integration

• B&R System Compatibility:
  • Interfaces with B&R X20 System controllers via the X20 backplane.
  • Compatible with B&R Automation PC and Power Panel devices using appropriate communication adapters.
• Communication Protocols:
  • Integrates with B&R’s Automation Bus (AB) for data transfer between modules and the controller.
  • Supports OPC UA and PROFINET (via the host controller) for integration with third-party DCS/PLC systems and HMI software.
• Software Support:
  • Configured and commissioned using B&R Automation Studio (version 4.0 or later), which provides tools for signal calibration, diagnostics, and application programming.

Availability