Programmable Logic Controller (PLC) and a Direct Digital Controller (DDC) are both used to automate and control industrial processes, but they have some differences in terms of their advantages and applications.
Advantages of PLC vs DDC:
- Flexibility
- Reliability
- Modularity
- Scalability
- Integration
DDCs are typically used in building automation applications and offer advantages such as ease of installation, energy efficiency, and the ability to control multiple systems with a single controller.
However, they may not offer the same level of flexibility and scalability as a PLC, especially in industrial applications that require complex control and automation functions.
Why PLC is Better Option than DDC?
- Direct Digital Controller (DDC)
- Designed for Lowest First Cost
- High Post Sale Support Costs
- Limited Post Sale Support Options
- Minimal Tools (Training) Allowing End User to Self-Support Installed base.
Programmable Logic Controller (PLC)
-Designed for Lowest Life Cycle Costs
-Low Post Sale Support Costs
-Multiple Post Sale Support Options
- End User staff
- Local System Providers
-Control System is core to making widgets and End User supportability is an ante
- Open Programming
- Open Training
Sample DDC Schematic Drawing
Sample PLC Schematic Drawing
