Introduction
- Introduction & Course Guide
- Adjust This Setting For Best Video Quality
Communication Port Parameters
- The Four Communication Port Parameters
- Synchronous Serial Transmission
- Asynchronous Serial Transmission
- Baud Rate
- The Serial Data Frame
- Data Bits
- Start and Stop Bits
- Parity
- An Example Real World Serial Data Stream
Communication Port Parameters in Practice
- What we are going to do in this Section
- An Overview of the Direct Logic DL05 PLC
- The Physical Hardware Setup
- Configuration of the DL09 PLC Port #2 Parameters
- Introduction to Terminal Applications
- Downloading and Installing the Terminal Application
- Programming the PLC to send Serial Data
- Viewing the Serial Data from the PLC
- The Effect of Mismatched Baud Rate
- The Effect of Mismatched Stop Bits, Data Bits and Parity
Live RS485 Communication to a Remote Terminal Unit device
- What we are going to do in this Section
- A look at the actual USB-to-RS485 Converter that will be used.
- A look at the actual MT-102 Remote Terminal Unit that will be used.
- A Schematic of the Computer to RTU Connection
- A look at the actual Computer to RTU Connection on the Workbench
- Configuration of the Communication Port Parameters on the MT-102 RTU
- Identification of Modbus Unit ID and relevant Memory Blocks
- RS485 Communication using Modscan32
- Effect of Mismatched Port Parameters on Communication
- Effect of Interchanged Signal Wires on Communication
RS485 Signalling and Cabling
- RS485 Interconnection - Daisy Chain
- Full Duplex vs. Half Duplex
- Single-Ended vs. Differential Data Transmission
- RS485 Device Receiver and Transmitter Components
- RS485 Voltages for Binary Representation
- Understanding Tri-State
- The Significance of Signal-to-Noise Ratio
- Unshielded and Shielded Twisted Pair Cabling (UTP/STP)
- Twisted Pair Noise Rejection
Bonus Section - How to Always get the Lowest Prices for my Courses
- Bonus Lecture
