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All 5 day courses contain a half day session specifically
on Fault Diagnostics Techniques and how they can be used to fault
find PLC systems.
Aims & Objectives:- On completion of the course
the student should:
- Be able to recognise S5 hardware and be able to replace modules
when a fault occurs.
- Be able to operate the Step-5 software to make it perform certain
tasks.
- Understand basic S5 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 Documentation:- 
- Training Log
- Pre Course Exercises
- Course Exercises
- Post Course Exercises
- Filofax Pocket Reference Guide
Course Content:- 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 to the PLC (project settings)
- If comms problem check PG/PC interface
- Create a blank project and take a backup (just in case I mess
up)
- Open project for PLC and go OnLine
- Interrogate I Stack and B stack
- 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
- Clear Memory and Download program
- Check software against latest copy (Compare function)
- Monitor program
- Searching for specific operands and instructions
- Changing timer, counter values On Line
- Making minor mods Off Line and On line
- Check or create a status table to establish parameter status
- Force a parameter if required
- Use Xreference to assist with software diagnostics
- Upload and Download project
- Display Documentation (Symbols, Comments)
- Reassign an I/O address and change software addresses (Rewire Function)
- Printing Cross Reference / Program Listings etc.
Background information required
Understanding of the following:
-
Introduction to MS-DOS
- Siemens DOS Files (ST.S5D, PX.INI) etc
- Number formats, bits, bytes, words, double words
- Binary, HEX,octal,floating point, integer
- Data types and parameter types, Bool etc.
- I/O Addressing
- Block types
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Program Structure
- Variable types (local and global)
- How to monitor various blocks (OB, PB, FB, DB etc.) (FBs in particular)
- Ladder, STL, FBD programs
- Basic Instructions, contacts, Set, reset etc.
- Timers, Counters
- Comparators, Maths
- How to make minor mods
- Altering values in a status variable table
- Back tracking through a program to establish where power flow stops
- Overall reset procedure
- Fault finding tips
Pricing
We can train an individual or upto 8 delegates, either On Site or at
our training facility in Corby, Northants, UK.
Each delegate is provided with their own training equipment i.e. PLC,
PC and simulator. NO SHARING.
We are consistently told from our existing
customers that we offer the best value for money in the market
today.
For pricing please email: pricing@plc-training.co.uk
with rough details of requirements.
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