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Which statement is true with regard to direct numerical control (DNC) systems?
A DNC system is a distributed numerical control system. DNC systems have microcontrollers in each machine. Therefore, each machine that makes
up a DNC system requires individualized programming. DNC systems control a chain of machines that follow a sequence of operations in the
manufacturing process. The DNC system cannot operate under centralized control or through a remote terminal.

Verified Answer :

GinnyAnswer

Direct Numerical Control (DNC) systems are used in manufacturing processes to control a chain of machines that follow a sequence of operations. Here are the true statements regarding DNC systems:

1. A DNC system is a distributed numerical control system.
- This means that the control of the machines is distributed among them rather than centralized in one location. Each machine can receive and execute specific instructions independently within the DNC system.

2. DNC systems have microcontrollers in each machine.
- Each machine in a DNC system is equipped with a microcontroller that allows it to receive, interpret, and execute the programmed instructions specific to that machine. This individualized programming capability enables each machine to perform its designated tasks efficiently.

3. Each machine that makes up a DNC system requires individualized programming.
- Due to the presence of microcontrollers in each machine, programming needs to be tailored to the requirements of each machine within the DNC system. This customization ensures that each machine performs its designated functions accurately and in sync with the overall manufacturing process.

In summary, DNC systems utilize distributed numerical control, employ microcontrollers in each machine, and require individualized programming for efficient operation within a chain of machines.