Maintaining, troubleshooting, and programming your programmable logic
control system requires a thorough understanding of all aspects of the
control system. This maintenance and troubleshooting course provides students
with a fundamental understanding of the installation, configuration, and
layout of the Allen-Bradley Logix (ControlLogix) family of PLCs.
Troubleshooting and maintenance procedures are covered for the Allen-Bradley
ControlLogix, FlexLogix, and CompactLogix programmable controller and
their associated input/output (I/O) systems. In addition, programming
concepts covering Contact, Coil, Timer, Counter, and Compare instructions
are introduced. Issues and concepts related to migrating from the PLC-5
to the SLC-500 based control systems are also discussed.
COURSE OBJECTIVES
Understand the major functional components of the Allen-Bradley ControlLogix
programmable control system as it relates to your facilitys installation.
Discuss design considerations for system architecture, processor selection,
input/output module type selection, power supply selection, and communication
system layout.
Cover rules for chassis, processor, adapter, power supply, and input/output
module placement.
Consider issues relevant when replacing existing controller, power supplies,
chassis, and modules.
Determine the meaning of LED indicator lights, jumpers, and dip or rotary
switch positions on processors, modules, power supplies, and chassis.
Discuss battery purpose, replacement procedures, and environmental considerations
for disposal.
Understand the differences and capabilities of Local, Universal Remote,
DeviceNet, ControlNet, and Ethernet I/O systems.
Discuss field devices and signal types and levels pertaining to I/O module
selection.
Understand the relationship between field devices, I/O modules, and I/O
addressing.
Cover configuration and impact of I/O update options related to change-of-state,
requested packet interval, and real-time sampling.
Become familiar with the memory layout and configuration of the Logix
(ControlLogix) processor, tags, data types, tasks, programs, and routines.
Design, build, test, and troubleshoot ladder logic control circuits involving
Contact, Coil, Timer, Counter, and Compare instructions.
Use the programming software as a diagnostic and troubleshooting tool.
Know the difference between online and offline programming.
Document and organize your programs for easy future reference.
Upload and download existing programs to and from the personal computer
and a Logix (ControlLogix) processor.
Use the programming software as a diagnostic and troubleshooting tool.
Isolate hardware and software problems from field device problems.
Use system diagnostics to identify and pinpoint faults in the system.
Develop a thorough understanding of, and the safety issues related to,
Forcing in the Logix (ControlLogix) family of PLCs.
Discuss appropriate safety issues. (Is the circuit really off??)