PLC (Programmable Logic Controllers) Networks

Learning Objectives

• Discuss LAN architecture as it applies to industrial networks
• Compare the structures of star, common bus, and ring topology, and identify advantages and disadvantages of each configuration
• Discuss how error detection is accomplished in the various network topologies
• Describe common methods of network access used in PLC systems
• Describe different types of transfer medium and identify their pros and cons
• Define throughput and describe its impact on system response