0-5VDC Signal Conditioner Monitoring with RS-485
Connect 0-5VDC signal conditioners and voltage-output sensors to PLC and monitoring systems with the ROI-IOM Series. Four analog voltage inputs provide a flexible interface for acquiring 0-5VDC measurement signals and integrating them into industrial monitoring applications.
Monitor 0-5VDC signal conditioners with one I/O platform
Many sensor signal conditioners provide a 0-5VDC output representing temperature, pressure, position, humidity, level, or another measured variable. The ROI-IOM Series provides four analog voltage inputs that can acquire these signals for use by connected control and monitoring systems.
- Four voltage inputs — AV1 through AV4
- 0-5VDC compatible — within the ROI-IOM 0 to 30 V analog input range
- RS-485 connectivity — for integration with industrial control and monitoring systems
For complete electrical, mechanical, communications, and I/O specifications, see the ROI-IOM Series technical specifications .
Voltage input capabilities
- 4 analog voltage inputs: AV1–AV4
- 0 to 30 V input range
- >450 kΩ input impedance
- 12-bit SAR ADC with 8.7 ENOB
- 500 kS/s maximum ADC sample rate with 48 MHz clock
- 15 m maximum specified cable length
0-5VDC signal monitoring
Measure 0-5VDC signal conditioner outputs
A 0-5VDC signal from a sensor conditioner can be connected to one of the ROI-IOM analog voltage inputs. Because each voltage input supports signals from 0 to 30 V, the complete 0-5VDC signal range is within the supported input range.
Four analog voltage inputs
AV1 through AV4 provide four independent analog voltage measurement channels. Each input has a specified input impedance greater than 450 kΩ and uses the ROI-IOM on-board analog-to-digital conversion hardware.
RS-485-connected monitoring
The ROI-IOM provides an RS-485 half-duplex communications interface with supported baud rates from 1200 to 115200, allowing voltage measurements to become part of a connected industrial monitoring or control system.
From signal conditioner to monitoring system
The ROI-IOM provides the connection between voltage-output instrumentation and the control or monitoring system. This makes it possible to bring multiple conditioned sensor signals into a common DIN-rail I/O platform rather than relying on a dedicated PC-connected measurement device.
Three steps to monitor
- Connect the conditioner — wire its 0-5VDC output to one of the AV1–AV4 voltage inputs.
- Acquire the voltage — the ROI-IOM converts the analog input into a digital measurement.
- Use the measurement — integrate the acquired value into the connected PLC, controller, or monitoring application.
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Learn more →Need to monitor a 0-5VDC sensor signal?
Tell Robert Owen what sensor or signal conditioner you need to monitor and where its measurement needs to go. We can help with sensor signal conditioning, signal processing, I/O, and integration into the control or monitoring system.