Allen Bradley SLC 500 MicroLogix Troubleshooting
Course overview
Manufacturers are increasingly facing greater pressures to reduce costs and maintain efficiency whilst also maximising output. These problems are further challenged when it comes to arranging shift patterns to release essential production line staff for training.
This problem can be eased, as we now offer you three day courses rather than our more traditional five day courses on Allen Bradley SLC 500/MicroLogix PLCs. Our new three day course enables you to maintain your efficiency levels with the minimum of disruption, whilst also providing focused learning.
This Troubleshooting course targets maintenance personnel who have attended the 3 day First Line Maintenance course, or who have a reasonable working knowledge of Allen Bradley SLC500/MicroLogix PLCs, and who need to be able to troubleshoot SLC 500/MicroLogix PLC hardware, software and process related faults. The course is entirely practical and consists of troubleshooting a range of fault scenarios to establish a logical approach to fault finding and to reinforce the use of standard tools and test procedures.
Target Group
All engineering personnel involved with the maintenance, servicing and troubleshooting of automated systems controlled by Allen Bradley SLC 500 MicroLogix PLCs.
Duration
Courses take place over three days.
Syllabus
Logical Approach to Faultfinding
- Understand what should be happening
- Understand what is/is not happening
- Understand the reasons why most faults will not be PLC hardware or software & are much more likely to be due to field device failures or wiring problems
- Define the symptoms & consider possible causes
- Perform appropriate checks to localise the problem
Troubleshooting Hardware Problems
- Understand the importance of carrying out visual checks
- Know the first level checks to begin to quickly distinguish between PLC & field faults
- Know typical fault symptoms for common PLC hardware failures
- Be able to recognise & interpret the meaning of system diagnostic LEDs
- Be able to interpret the status of I/O LEDs & relate these to the operation of field device
- Understand implications of sink/source configuration when testing I/O signals
- Understand the value of module swapping when localising hardware faults
SLC 500 system Re-starts
- Understand the operational effects of cycling the key switch or power
- Understand the implications of the retentive/non-retentive instructions
- Understand the operational effects of cycling the power with a failed battery
- Understand EEPROM memory configuration & operation
- Understand the operational effects of cycling the key switch or power
Troubleshooting through interpreting Program Code
- Navigating ladder views in RSLogix 500
- Understand power flow indication in the ladder view
- Understand the relationship between software highlights & hardware indicators
- Using multiple ladder views & split screen options
- Know how to use the search tools in RSLogix 500 to navigate a program
- Understand on screen highlighting when applied to Latches/Unlatches
- Be able to read an SLC program printout & interpret cross reference information to trace signals when troubleshooting
Diagnostic tools in RSLogix 500
- Know how to access & interpret on-screen cross reference data
- Know how to Compare online/offline programs & interpret the results
- Know how to create & configure Custom Data Monitors
- Know how to configure the Multipoint Monitor
- Know how to create & configure Trends
- Know how to create & configure Histograms
- Know how to navigate Data File windows
- Know how to access Processor Status information
- Know how to identify & clear Major Errors
- Know how to use the Force function & the implications of doing so
- Know how to edit data & use the toggle bit function to aid faultfinding
Tips & Tricks when Troubleshooting with RSLogix 500
- Understand & use the advanced diagnostics functions to aid program navigation
- Designing & adding code to trap process events that are otherwise difficult to monitor
- Using online edit test/untest function to implement temporary modifications
Practical Troubleshooting Exercises
- Troubleshooting process faults
- Troubleshooting hardware faults
- Troubleshooting problems with digital I/O
- Troubleshooting data handling problems
- Troubleshooting problems with analogs
- Troubleshooting serial communications problems
- Troubleshooting problems which include indirect/indexed addressing
- Troubleshooting process faults
Training outcomes
- Understand the logical approach to fault finding
- Apply troubleshooting techniques to solve hardware problems
- Perform SLC 500 system Re-starts
- Troubleshoot interpreting Program Code
- Diagnostic tools in RSLogix 500
- Understand the tips and tricks when troubleshooting with RSLogix 5
For more information or to make a booking please call (01604) 667584, or alternatively e-mail business_centre@festo.com.