Foxmere Technologies

CompactLogix Level 1

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Course Outline

Upon completion of the course the student should:

  • Understand exactly how a PLC works.
  • Understand basic PLC concepts.
  • Be able to troubleshoot CompactLogix PLC systems in a competent and confident manner.
  • Be able to understand CompactLogix hardware configuration and be able to add or replace modules when a fault occurs.
  • Be able to operate the Allen-Bradley software to make it perform common tasks.
  • Understand basic 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.
  • Be able to understand and back track through a simple programs.

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Equipment per Delegate

  • Allen-Bradley CompactLogix PLC.
  • PC or laptop.
  • Simulator.

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?
  • 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?
  • Is forcing a bit and toggling a bit is pretty much the same?

How do I do the following?

  • Check power is ON and PLC is in right mode (RUN or Program).
  • Check LEDs for fault definition.
  • Check and change modules if required (with spares and without spares).
  • System connection.
  • Establish link to PLC (RSLinx).
  • Link to CPU via RS232 port, Ethernet or DH+ module.
  • Checking Ethernet connections using PING instruction.
  • Create a blank project and take a backup.
  • Open the correct project offline and link to PLC.
  • Interrogate errors in controller properties, common faults.
  • Identify if it is a hardware or software fault.
  • Identify if it is a PLC or comms fault.
  • Access fault information about IO cards.
  • Change the battery, with power on.
  • Working with CPUs with non-volatile (EEPROM) memory.
  • Check all settings against a template, node address etc.
  • Check hardware configuration, IO errors.
  • Clear memory and download program.
  • Monitor program
  • Is it latched or unlatched?
  • Altering values in tag tables.
  • Back-tracking through a program to establish where power flow stops.
  • Searching for specific operands and instructions.
  • Using bookmark function.
  • Changing timer, counter values online.
  • Making minor mods offline and online.
  • Create a trend-to-trend address status or values.
  • Altering timer, counter and other values if required.
  • Force a parameter if required.
  • Toggling addresses to move program on in sequence.
  • Call up documentation to assist with software diagnostics.
  • Printing cross reference / program listings etc.

Background information also covered.

Understanding the following

  • Number formats, bits, words, double words.
  • Binary, real, integer, DINT.
  • Basic communications, RS232 and ethernet.
  • Network basics.
  • Setting up a simple ethernet network.
  • Tasks, programs and routines.
  • How to monitor various blocks.
  • Understand basic ladder programs.
  • Basic instructions, contacts, latch, unlatch etc.
  • Timers and counters.
  • Comparators, maths.
  • Fault finding tips.

Booking

Provisional bookings can be made via email, phone or letter. Confirmation in writing with a purchase order number is required four weeks prior to the course start date.

Dates may be offered to other customers after this date.

Joining instructions are sent out approximately two weeks prior to the course start date.

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Course Times

Typical course times are 09:00 to 16:30. Alternative arrangements can be made for customised and on-site courses.

Lunch

A light lunch will be provided when training at our in-house facility.

Payment and Cancellations

Fees are based upon payment being made to confirm course booking. Should you be unable to meet these terms please advise us as we will be able to re-quote on your payment terms.

Prices are quoted exclusive of VAT. New Customers are required to pay pro forma.

Requests for cancellation must be made via email or letter. Cancellation charges may apply.

Course Specifics

PLC

Allen-Bradley CompactLogix

Software

RSLogix 5000

Duration

3 days

Max. Delegates

6

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