DSBOARD-ORNX-LAN Industrial Input Output Interface Tutorial v1.1

In this blog post, we will test the IIO (Industrial Input-Output) interface of DSBOARD-ORNX-LAN v1.1.

First, let's look over the IO connector. On the connector, there are 4 serial communication, 4 ground, 2 CANBus, 2 digital input and 2 digital output pins.

Digital input side accepts signals between 12-24V (rated for 2.25mA). In our application, we used Heschen M12 Inductive Proximity Sensor (PNP & Normally Open(NO)) with 24V voltage source.

Find sysfs equivalent of the connected output pin from the table below. For this setup, it is DIGITAL_IN0. After proper hardware connection with industrial LED, we can continue with the software side.

Set DIGITAL_IN0 as input and read sensor value. To do this, you should use the commands below.

Digital output side can drive loads up to 24V and has a current limit of 1A. They work as low side switches, open-close between them and GND. So, you should have a circuitry as in the schematic below. In our application, we used GASHER 24V Indicator Light with 24V voltage source. 

Find sysfs equivalent of the connected output pin from the table below. For this setup, it is DIGITAL_OUT0. After proper hardware connection with industrial LED, we can continue with the software side.

Then, set DIGITAL_OUT0 as output and control light state. To do this, you should use the commands below.

To short output:

To open output:

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