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Modbus I/O Modules

Industrial RS-485 Modbus RTU remote I/O expansion modules designed for PLC expansion, SCADA integration, and harsh automation environments.

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Product Selection Matrix

Analog IO

Order Code Description & Datasheet Link
UIO-444-20MA 4-Channel 20mA Input / 4 DI / 4 Relay
UIO-4AO-20mA 4-Channel 20mA Output
UIO-2AO-20mA 2-Channel 20mA Output
UIO-4IN-10V 4-Channel 10V Input
UIO-4IN-20MA 4-Channel 20mA Input
UIO-8IN-20MA 8-Channel 20mA Input
UIO-8IN-VI 8-Channel 20mA & 10V Input

Digital IO

Order Code Description & Datasheet Link
UIO-4DI-4DO 4 Digital Input / 4 Digital Output
UIO-8DI 8 Digital Input
UIO-8DO 8 Digital Output

High Density IO

Order Code Description & Datasheet Link
UIO-12DI-12DO 12 Digital Input / 12 Digital Output
UIO-24DI 24 Digital Input
UIO-24DO 24 Digital Output
UIO-24DI-24DO 24 Digital Input / 24 Digital Output
UIO-48DI 48 Digital Input

Ultra Compact IO

Order Code Description & Datasheet Link
MIO-1LD Loadcell to Modbus 20-bit Scale and Force Mode
MIO-2AI-VI 2-Channel Analog Input
MIO-DES1 Digital Environmental Sensor (Temp / RH / Pressure)
MIO-ISO-2DI 2 Isolated Digital Input
MIO-ISO-2DO 2 Isolated Digital Output (60V AC/DC SSR)