Chapter 13: Downloading to the PLC
Downloading to a Programmable Logic Controller (PLC) is an important and necessary part of any project. It is the point at which an offline project or modification is actually sent to the CPU. A download might consist of just software changes or also hardware changes. TIA Portal does a great job at managing this download process to ensure it occurs fault free. This chapter explores, in detail, how the download process works in TIA Portal and what is new in TIA Portal 17. Before making downloads to a PLC, it's important to understand the actions that TIA Portal needs to take and what this could mean for data in the PLC.
In this chapter, we will cover the following topics:
- Downloading to a PLC
- Retaining data in optimized and non-optimized blocks
- Uploading from a PLC
- Considerations