YSI ODO RTU is an optical dissolved oxygen & temperature sensor engineered specifically for aquaculture applications, but also works well as an all-round DO sensor.
Together with the Consibio Logger, you can measure dissolved oxygen and temperature in real-time to provide valuable insights for:
- Ensure optimal growth conditions: The amount of oxygen is crucial for the well-being and thus feed uptake of lifestock in aquaculture. It is paramount to continuously monitor this to ensure optimal conditions.
- Optimize energy usage: Oxygenation is one of the most power hungry operations in water based systems. Real-time monitoring of the amount of dissolved oxygen enables you to properly control aeration and thus improve associated energy usage.
Wiring of Sensor and Logger
Items needed
- 1 x Logger
- 1 x RS485 expansion board
- 1 x YSI ODO RTU sensor
Connecting a YSI ODO RTU sensor via. ModbusRTU/RS485
To integrate the YSI ODO RTU sensor with the Consibio Logger via ModbusRTU, utilize the RS485 Expansion Board and follow these connections:
- Green wire to GND
- Red wire to 12V
- Black wire to A
- White wire to B
Note that in the datasheet the white wire is denoted as A and the black wire as B. This notation is not standardized, so it is sometimes flipped. For connection to Consibio Logger, refer to the list above.
The expansion board has three sliders in the lower left corner, where you can enable bias and termination resistors for the RS485 bus. These should be pushed to the right (as shown above) to enable them all.
This configuration leverages the Logger's compatibility with the ModbusRTU/RS485 protocol and the versatility of its RS485 Expansion Board, enabling seamless integration with industry-standard communication protocols for efficient data acquisition and monitoring.
Consibio Cloud Configuration
When the expansion board is installed and the sensor is connected, the Logger should be configured accordingly through Consibio Cloud.
First, ensure that the device is claimed into the project you want to use.
Next, the Logger should be informed to collect data from the YSI ODO RTU probe. To do that, follow the steps below:
- Go to the "Devices" tab in the top menu
- Click on the device, you have connected the sensor to (you can see the same serial no. in Consibio Cloud and on the mark on the side of the device). This will open the configuration page for the device.
- Scroll down to the bottom of page under "Inputs and outputs". Click on the port (A or B), where you installed the RS485 expansion and select this. For example, if you installed in port A:
Click on the expansion port:
Select the "RS485 v1.3" expansion and click "Save": - Add a new channel on this port:
- Select "YSI ODO RTU" as the channel type. This will include all necessary settings to work with this specific sensor:
- When the channel is selected, some new configuration settings will appear. The first set of settings are related to the sensor communication settings. The values shown below are the default values used by the sensor, but these can be changed so remember to reflect it accordingly here.
Below that the individual parameters measured by the probe are paired with elements (ie. data tags used in Consibio Cloud). You can use existing elements here or create new ones and name them as you want. - Click "Save" in the top menu of the popup
And that's it! The next time the Logger connects to Consibio Cloud, these settings will be synchronized and the Logger will start collecting data from the YSI ODO RTU sensor.
After this, you might want to configure the measurement and transmission interval on the Logger and setup the dashboard to visualize the configured elements as shown below.
Configure Max. Offline and Measurement Interval
Setup Dashboard
Disclaimer
When performing sensor-electrical wiring, always read and follow the sensor manufacturers latest instructions and safety guidelines. This guide is a suggestion based on the available information at the date of writing this guide.