IQAN University: 3 Types of Digital Outputs

There are many steps to take when designing your program within IQAN Design. In this video, we look at the three different types of digital outputs, when you should use them, and different parameters you need to be aware of.

1. High Side: When activated, these outputs supply power to the load and then power finds its way to a ground, or a neutral common. They are meant for higher power functions, as they can supply up to 4 amps (refer to component manual). When creating a program in IQAN Design, these should be used for on/off functions, but require more power, like a solenoid valve or a small motor)
2. Low Side: These outputs indicate power coming from the source to the load and the controller is turning the return on and off. When the output is on, it activates the return, or negative side, and power from the sources goes through a load and connects into the low side output. Activating this output completes the past to ground. Low sides are always at a much lower current rating and are generally limited to 300 mA (refer to component manual). These outputs are typically meant to control smaller electric functions or signals, like an indicator light.
3. High Side, Low Side: This option combines the first two types. Pins and connectors are sequential, but one high side is used to supply power to a group of low side outputs. The high side output supplies power to up to 4 loads, that return through the low side outputs, while providing extra circuit protection. It’s important to note, however, that these are still limited by the current limitations of the low side.

In our IQAN University video series, we look at this topic and provide targeted skills training for your team to familiarize them with exactly what they need to know quickly. If you’re looking for more comprehensive training, you can sign up for one of our in person training sessions.

Contact us today to discuss how we can improve communication and control in your machines.