B&R ECPE84-1B

Technical Specifications

• Number of input channels: 8
• Input signal range: 0–10 V DC
• Resolution: 16 bit
• Channel isolation: Full electrical isolation between channels
• Input impedance: High impedance input stage
• Conversion accuracy: ±0.1% of full scale
• Operating temperature: -20°C to +60°C
• Storage temperature: -40°C to +85°C
• Humidity range: 5% to 95% non-condensing
• Dimensions: 75 mm × 80 mm × 30 mm
• Weight: 150 g
• Certification: CE compliant

Functional Features

• 16-bit high-resolution analog-to-digital conversion for precise measurement
• Channel-to-channel electrical isolation to eliminate ground loop interference
• Built-in signal conditioning and filtering circuits
• Automatic self-calibration to maintain long-term accuracy
• Backplane interface for direct integration with MULTI series CPU modules
• Compact form factor for high-density I/O configurations

Application Scenarios

• Process control system analog signal monitoring
• Temperature, pressure, and flow sensor signal acquisition
• Test and measurement equipment data collection
• Industrial automation closed-loop control systems
• Laboratory and R&D test setups

Working Principle

The module receives 0–10 V analog voltage signals from field sensors via input terminals. Each channel passes through signal conditioning and filtering circuits before being sampled by a high-resolution analog-to-digital converter. The converted digital data is transmitted to the CPU module via the backplane bus. Isolation circuits between channels and between the field side and system side prevent electrical interference and ground potential differences from affecting measurement accuracy.

Installation Requirements

• Install in MULTI series I/O rack slots
• Use shielded twisted-pair cables for analog signal wiring
• Separate analog signal cables from power cables to avoid electromagnetic interference
• Connect sensor shield wires to the module’s shield terminal
• Ensure sensor power supply is stable and within rated range
• Mount in a location free from strong vibration and electromagnetic fields

Usage Notes

• Signal wiring must follow proper grounding practices to minimize noise
• Do not apply voltages beyond the rated input range to any channel
• Regular calibration is recommended to maintain measurement accuracy
• Unused channels should be shorted or left open according to manufacturer recommendations
• Do not disconnect signal cables while the system is powered on
• Protect the module from electrostatic discharge during handling