This course provides you with a working knowledge of Modicon's Modbus
Plus Local Area Network (LAN). Modbus Plus is a proprietary communication
network designed to permit high-speed, peer-to-peer communication between
a variety of control and/or monitoring devices called network nodes. Nodes
may include Modicon programmable controllers, host computers equipped
with an appropriate hardware and software interface, PC based programming
software, PC based network manager or file servers software, and other
Modbus and Modbus Plus compatible devices.
This course will provide a hands-on opportunity for you to lay out, configure,
implement, test, and troubleshoot all three levels of Modbus Plus communication.
COURSE OBJECTIVES
Define a Modbus Plus Local Area Network. Understand how it works and why
to use it.
Define communications terms: node, peer-to-peer, global, peer cop, etc.
Develop a system block diagram for a typical Modbus Plus system.
Learn how information is exchanged between nodes and the token.
Learn how information is exchanged between nodes and the token.
Understand the functionality of the major system components: BR85 Repeater,
BP85 Bridge Plus, and BM85 Bridge Multiplexer, SA85 personal computer interface
card, and your 984 controller with Modbus Plus port.
Install Modbus Plus Network software and understand how the software works
and what the software does for your system (hints on avoiding pitfalls).
Understand proper cable and connector installation techniques and learn
about potential routing and environmental problems.
Read and write information between nodes, both globally and between networks.
Learn how to communicate between Modbus and Modbus Plus networks.
Develop strategies for documenting network hardware and data communications.
Determine system throughput, predict token rotation and response time,
group nodes to improve throughput, prioritize data transmissions, etc.
Generate ideas on optimizing system communications on the network, i.e.,
throughput.