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Norisys 4-UNIO 4AI4AO
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NI 9263
NI 9263
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Motorola MVME187
Motorola MVME187

Norisys 4-UNIO 4AI4AO

Product Name
NORISYS 4UNIO 4AI4AO Universal Analog I/O Module.
Product Introduction
DIN-rail universal analog input and output module with 4 AI and 4 AO channels for industrial and building automation.
Technical Specifications
Category:
Description
Brand: NORISYS
Model: 4-UNIO 4AI4AO
Analog Inputs: 4
Analog Outputs: 4
Input Type: 0–10 V DC / 4–20 mA selectable
Output Type: 0–10 V DC / 4–20 mA selectable
ADC / DAC Resolution: 16 bit
Input Accuracy: ±0.1% FS
Output Accuracy: ±0.2% FS
Isolation: 1500 V DC
Power Supply: 24 V DC ±20%
Power Consumption: <2.5 W
Communication: Modbus RTU RS-485
Baud Rate: 9600 to 115200
Protection: IP20
Operating Temp: -10 to 55 °C
Performance Parameters
AI Sampling: 10 samples/sec per channel aggregate
AO Load: 600 Ω voltage mode, 500 Ω current mode
Modbus Role: RTU slave
Diagnostics: open-wire, over-range detection
Indicators: per-channel LED status
Material Composition
Housing: polycarbonate UL94V-0
DIN Clip: zinc-plated steel
Terminals: screw terminals, 2.5 mm² max
PCB: FR-4, conformal coated
Structural Characteristics
35 mm DIN-rail mount.
Front-accessible terminal block.
DIP switch for Modbus address.
Compact multi-channel I/O unit.
Channel labeling on front face.
Working Principle
Field sensors send 0–10 V or 4–20 mA to AI channels.
Signal is isolated, filtered, and converted by ADC.
Controller reads values over Modbus RTU.
Controller writes output values.
DAC and conditioning circuit generate AO voltage or current.
Application Scenarios
HVAC control.
Water and wastewater treatment.
Process automation.
Machine building.
Energy management.
Building management systems.
Installation Requirements
Mount on 35 mm EN 60715 DIN rail.
Use shielded twisted-pair for analog signals.
Ground shield at one point.
Install 120 Ω termination at last RS-485 device.
Leave ventilation space in enclosure.
Usage Notes
Do not exceed 24 V DC +20% power input.
Do not share AI/AO grounds with high-power devices.
Configure channels before operation.
Recalibrate approximately every 24 months.
Power off before removing or rewiring module.
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