Learn The Basics Of PLCs; In A "Hands-On" Environment
This Class Uses Automation Direct DL 105 PLCs &
DirectSOFT 5 programming software
Class Length 1-Day
Includes Eight "Hands-On" Labs
Course Outline
Introduction
Why programmable controllers were invented
What they do for you, what they replace
Parts of a PLC
Power supply
Central processing unit (CPU)
Memory
Data
Program
Input section / output section
How Programmable Controllers Work
Checking input status
Updating bits in the input section of memory
Executing the program
Updating bits in the output section of memory
Turning on/off outputs
Scan time
Input and Output Boards
Types
Input boards
AC
DC
High speed counters
Analog input boards
Output Boards
AC
DC
Analog output boards
Functions
Termination
Isolation
Translation
Threshold detection
Indication
How to Read Ladder Logic
AND, OR, NOT
Logical continuity vs. Electrical Continuity
Contacts in series / contacts in parallel
Series parallel combinations
Reading rungs like sentences
Instructions
How Instructions Replace
Normally open contacts
Normally closed contacts
Outputs
Software control relays
Latches
Unlatches
Timers / Counters
On timers
Off timers
Retentive timers
Up counter
Down counters
Preset / accumulated values
Time bases
Move instructions
Troubleshooting
Input side
Switches
Wiring
Testing input boards
Output side
Load
Wiring
Testing output boards
Central processing unit
Visual indicators
Faults, how to clear them
Lost programs
Power supply
Visual indicators
Checking voltage levels
Checking fuses
Using the ladder logic to troubleshoot
Troubleshooting with the program
Displaying rungs
Searching for problems using software