8-Channel Isolated Analog Data Acquisition Module

The 8-Channel Isolated Analog Data Acquisition Module is an industrial-grade 12-bit ADC with RS485 communication, designed for reliable multi-channel voltage and current measurement in demanding environments.

Each channel is independently configurable for different input ranges, and the module supports standard 2-wire, 3-wire, and 4-wire sensor connections. Communication and input/output are optically isolated to 1500VDC, protecting your system from interference and electrical faults. The module uses the standard Modbus RTU protocol for easy integration with PLCs, SCADA software, industrial PCs, and OPC systems.

Key Features

• 8 Independent Channels – Each channel can be configured for a different input range
• Multiple Input Ranges – Supports 0–5V, 1–5V, 0–2.5V, 0–20mA, and 4–20mA (factory default: 4–20mA)
• 12-Bit Resolution – Collection accuracy of ±1‰
• Opto-Isolated RS485 – 1500VDC isolation voltage for reliable industrial communication
• Modbus RTU Protocol – Standard industrial protocol for easy integration
• Flexible Sensor Support – Works with 2-wire, 3-wire, and 4-wire sensors
• Wide Power Supply – 12–30VDC input with reverse-polarity protection
• Software Watchdog – Automatic recovery from communication faults

Specifications

• Input Channels: 8× single-ended analog
• Input Types: Voltage and current
• Sampling Rate: 1400 sps total (50 sps per channel)
• Input Impedance: 10 MΩ (voltage), 249 Ω (current)
• Baud Rate: 1200–115200 bps
• Max Transmission Rate: 180 reads/sec at 115200 bps, 24/sec at 9600 bps
• Power Consumption: 0.5W rated at 24VDC
• Operating Temperature: −40°C to +80°C
• Storage Temperature: −40°C to +85°C

Ideal For

• Industrial monitoring and SCADA systems
• Multi-sensor data acquisition
• PLC and OPC integration projects
• Environmental and process monitoring

Package Contents

• 1× 8-Channel Isolated Analog Data Acquisition Module

Resources

• Product Instruction (PDF)
• Configuration Software (RAR)