Mitsubishi FX5 or IQ-R Series PLC Basics
Software: GX Works3
PLC Type: Mitsubishi FX5 or IQ-R Series PLC
Duration: 3 Days
Pre-requisites: None
Maximum Delegates: 6
Course Price: £995.00 (exc. VAT)
Brief Description
- Be able to recognise Mitsubishi FX5 or iQ-R Series hardware and be able to locate and cure most faults that occur.
- Be able to operate the GX Works 3 software to make it perform certain tasks.
- Understand basic FX or iQ-R 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.
Course Content
To fault find a system you need to know EXACTLY how it works
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Am I getting the input to the PLC?
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The Led on the output card means i am getting voltage out right? does it?
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What exactly happens in between? theres more than just a program in the CPU
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How exactly does it scan the program?
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What is this Watchdog Timer? Is it that important?
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Can I use the same output twice? That’s bad programming isn’t it?
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A PLC is a logic controller, so use a logical approach to fault find it.
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What are the 8 simple test points to check?
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The PLC is in RUN, that means theres a program right? does it?
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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 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
- 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)
- Printing Cross Reference / Program Listings etc.
Background information also covered
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 Documentation
- Course Notes
Course Equipment (per delegate)
- FX5 or iQ-R Series PLC
- PC or Laptop
- Simulator
Reviews
Plc overview with James
Course: 2225
Fantastic course, really friendly and helpful trainer, I now feel much more confident writing and troubleshooting code.
Overall would definitely recommend the course.
Well explained and efficiently executed in an easy to understand format. Thanks James.
- Michael Alfie Blundell (July 25, 2025)
Fantastic Course
Course: 2225
James was patient and very clear with his teaching style – brought our group up to speed with the basics of PLCS in a week.
- Jamie Power (July 25, 2025)
Allen Bradley EAL Level 3Unit
Course: Schneider M221 EcoStruxture Basic
Excellent course, gained a lot of knowledge. The tutors are great and very helpful would highly recommend
- Sam Yeoman (February 14, 2023)
Excellent Course
Course: Siemens S7 1200/1500, ProfiNet & HMI Level 1
Course covered TIA Portal introduction and programming. Instructor has sound knowledge and experience in the field and is able to pass this on. Highly recommended.
- Sean (October 27, 2021)
Great course
Course: Siemens S7 300/400 PLC & Networks Level 2
Very good and in depth course with lots of information we covered a range of PLCs and programs. Mick made it very simple to understand and answered all questions we had. Very knowledgeable and friendly instructor
- Harry Tredaway (October 1, 2021)
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