How many Universal Input and Output groups are available in the system?

In many engineering control systems, the number of Universal Input and Output (I/O) groups is critical as it defines how many devices or signals can be managed simultaneously. Universal I/O groups are versatile components that can handle various types of signals, whether analog or digital, making them essential for a wide range of applications.

Choosing 128 as the correct answer indicates that this system can manage up to 128 Universal I/O groups, allowing for extensive connectivity and control over numerous devices. This capacity is particularly beneficial in complex systems where multiple sensors and actuators need to be integrated efficiently.

The configuration with 128 I/O groups provides substantial flexibility and scalability to adapt to diverse operational requirements. Systems with fewer I/O groups would be limited in their ability to connect additional devices, potentially reducing their effectiveness in larger or more complex applications. Thus, the choice of 128 emphasizes the balance between capability and manageability in system design.