Scope
This Hands-on course is designed to teach the participants how to properly install, operate and troubleshoot any of
the Modicon 984 family of programmable logic controllers. This workshop is designed for technicians, operators and engineers
interested in installation operation and troubleshooting any of the Modicon 984 programmable logic controllers. This
course stresses the practical aspects of troubleshooting these sophisticated and complex programmable controllers. The author/instructor
has used his over 25 years of practical control and teaching experience to present clear and concise solutions to your everyday
control problems. The installation section emphasizes practical examples of how to set-up and configure local, remote, hierarchical
and distributive control systems. Participants will also be given hands on opportunity to configure various processors and
I/O modules. Participants will do many practical exercises and practice problems to help understand the complex subjects of
program and data table organization and traffic cop configuration.
Although this is not a programming course, basic relay type instructions,
timers and counters and math instructions will be discussed along with the opportunity to perform many practical programming
exercises and practice troubleshooting problems. Studies have indicated that eighty percent of the faults associated with
a PLC based control system involve either I/O devices or field wiring. Participants will learn how to use the Modicon
hardware and software tools that usually remain hidden to all but the most experienced troubleshooting professional. Participants
will be given the keys to unlock these tools along with job aids that you can take back to your job site for easy future reference.
Prerequisites: A strong working knowledge of electricity,
electronics and either motor control basics or instrumentation is required. In addition, it would be very helpful for the
participant to have a good general understanding of personal computers.
Learning Outcomes
Upon completion of this course, the participant should be able to:
- Install, Set-up, and Configure a 984 programmable logic controller
based control system.
- Write programs using the Basic Relay Type, Counter, Timer and Data
transfer instructions.
- Identify, Isolate, and Correct the most common field and systems faults.
Outline
- Installation
- Parts of a 984 programmable logic controller
- Input Interfaces
- Four section block diagram
- Internal circuit analysis
- Processors
- Local Processors
- Remote Processors
- Compact Controllers
- Output Interfaces
- Four section block diagram
- Internal circuit analysis
- Power Supplies
- Operation of switching power supplies
- Front panel features
- Programming Terminals
- Communication techniques
- Software Installation
- Practical DOS commands
- System Configurations
- Local
- Remote
- Hierarchical
- Distributive
- Hardware Considerations
- Field wiring
- Master Control Relays
- Isolation transformers
- Grounding
- Hands-on Activities
- Program and data table organization
- Organization of User Program Segments
- Organization of the Data Table
- Bit and Register Addressing
- Hands-on Activities
- Introduction to 984 programming
- The most common 984 instructions
- Basic relay type instructions
- Counter and timer instructions
- Data transfer instructions
- Entering and editing user programs
- Hands-on Activities
- Troubleshooting Activities
- Safety considerations and forcing of input and output devices
- Identifying input and output field device faults
- Identifying I/O module faults
- Identifying system faults
- Using the programming terminal to troubleshoot I/O and processor faults.
- Hands-on activities
