Introduction to Serial Communications
(Original Document)
Subject of this Chapter
This chapter introduces the serial communications on Modicon M340 Platform.
The table below gives a quick overview of the two possibilities for implementing serial link communications:
Using the integrated port of the M340 CPU
- Limited transmission speed
- Non isolated serial lines
- Provision of power supply to terminal equipment
- Increased number of available communication channels
- Handling of modem specific RS232 signals
- Higher transmission speed
- Two isolated RS485 serial lines
What Is in This Chapter?
This chapter contains the following topics: