Mitsubishi FX and A Series PLC Level 1 (FX Series)
Short course
Inhouse
Description
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Type
Short course
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Methodology
Inhouse
Be able to recognise Mitsubishi FX and A Series hardware and be able to locate and cure most faults that occur. Be able to operate the GX Developer software to make it perform certain tasks. Understand basic FX and A Series instruction set and be able to make minor modifications to software. Be able to backup and restore a PLC program when required. Be able to perform basic system diagnostics when a problem occurs. Suitable for beginners.
About this course
No prerequisites this is a beginners course.
Reviews
Course programme
Software: GX Developer
PLC-Type: Mitsubishi FX Series PLC
Course Documentation
- Training Log
- Pre Course Exercises
- Course Exercises
- Post Course Exercises
- Filofax Pocket Reference Guides
Course Content
To fault find a system you need to know EXACTLY how it works
HOW EXACTLY DOES A PLC WORK?
- Am I getting the input to the PLC?
- The Led on the output card means i am getting voltage out right? does it?
- What exactly happens in between? ,theres more than just a program in the CPU
- How exactly does it scan the program?
- What is this Watchdog Timer? Is it that important?
- Can I use the same output twice? That's bad programming isn't it?
- A PLC is a logic controller, so use a logical approach to fault find it.
- What are the 8 simple test points to check?
- The PLC is in RUN, that means theres a program right? does it?
- FORCING a bit and toggling a bit is pretty much the same yeah? depends on which PLC
- Then you need to Know the specifics
HOW DO I DO THE FOLLOWING?
(some straight forward some not so)
- How do I check power is ON and PLC is in right mode (RUN or Program)
- Check for a fault condition
- Establish a link between PC and PLC (can be a major issue nowadays)
- If comms problem check interface
- Create a blank project and take a backup (just in case I mess up)
- Open project for PLC and go OnLine
- Interrogate Diagnostics
- Identify if it is a hardware or software fault?
- Change the battery
- Change modules if necessary, (with spares and without spares)
- Identify if it is a PLC or Comms fault
- Check all settings against a template etc.
- Check Hardware ( What voltage should be where)
- Clear Memory and Download program
- Check software against latest copy
- Monitor program effectively
- Searching for specific operands and instructions
- Changing timer, counter values On Line
- Making minor mods Off Line and On line
- Check or create a monitor table to establish parameter status
- Force a parameter if required
- Call up reference data to assist with software diagnostics
- Display Documentation (Symbols, Comments)
- Reassign an I/O address and change software addresses
- Printing Cross Reference / Program Listings etc.
Background information required
Understanding of the following:
- Number formats, bits, bytes, words, double words
- Binary, HEX,octal,floating point, integer
- Data types and parameter types, Bool etc.
- On Line and Off Line modes
- Basic Instructions, contacts, Set, reset etc.
- Timers, Counters
- Comparators, Maths
- How to make minor mods
- Altering values in a monitor table
- Using Device Monitor function
- Using Force function
- Back tracking through a program to establish where power flow stops
- Reset procedure
- Fault finding tips
Course Equipment Per Delegate
- FX or A Series PLC
- PC or Laptop
- Simulator
Additional information
Mitsubishi FX and A Series PLC Level 1 (FX Series)