“Noise” or “Interference” consists of unwanted electrical signals which superimposes on and masks the desired signal. Designing a control system is challenging enough, but designing a control system that has noise immunity adds a whole other dimension. Ideally, you want the noise-to-signal ratio to be as small as possible. Noise is always present in a system that involves high power and small signal circuitry. The key is to manage the noise so that it does not interfere with the performance of the system at hand.
The output setup (Os) command is used to set the functionality of the outputs. The parameters define the output point to be configured, the desired functionality, and the active control state high or low.
The input setup (Is) command is used to set the functionality of all inputs, digital and analog. The parameters define the input point to be configured, the desired functionality, and the active response state high or low.
This Application Note covers the topic of writing MDrive MCode programs using the programmable I/O points both as a single I/O point, or as a bank of 4 I/O points as a group.
A sourcing device provides the power or a positive potential to an I/O point. Sourcing devices ‘push’ the current through the load. Other terms used to describe sourcing devices include PNP, Open Emitter, Normally Low, and IEC Positive Logic.
Note that sourcing outputs are only available on Motion Control devices equipped with Plus2 expanded features.
For this part of the tutorial we will use the same hardware configuration examples as was used in the Connecting Power and I/O tutorial to show the configuration of I/O points to various I/O uses.
A sinking device provides a path for the current to ground. Terms used to describe sinking devices include NPN, Open Collector, Normally High, and IEC Negative Logic.
For this part of the tutorial, we will use the same hardware configuration examples as was used in the Connecting Power and I/O tutorial to show the configuration of I/O points to various I/O uses.
Setting up the hardware interface for the MDrive I/O only represents half of the battle. Before it can function it must be configured in software using the “S” command.
This Application Note: covers the basic functions and capabilities of the MDrive communicating over Ethernet.
This Application Note covers a small program for a motion sequence. It is developed in a fashion that no I/O is used. The only thing needed to be connected is power and communications. There is no difference in function between Liberty* MDrive and MDrive motion products.
This Application Note covers the basic structure and programming conventions of the MCode language, The differences between Liberty* MCode and MDrive MCode is primarily found in the syntax of the I/O instructions.
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