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Copyright © 2011, 2012, 2014 De Coninck Ivo.
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PLµX Ladder Diagram Editor (create, build and test a ladderdiaram) for the PLµX hardware.
This is a legal agreement (the "Agreement") between you (either an individual or a single entity) and PLµX Software.
1. LICENSE. PLµX is a freeware software application. You are allowed to use and share this software for free.
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The software is provided with all faults and the entire risk as to satisfactory quality, performance, accuracy and effort is with you.
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PLµX Version 1.1 Copyright (C) 2011 - 2014 PLµX Software. All rights reserved.
This version of the manual is intended to describe the version 1.1 of PLµX Editor.
The PLµX project welcomes those who want to get more
involved. Look at the project website to find out more.
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The PLµX Ladder Diagram Editor is designed to allow you to easily prepare a PLC program by simply placing blocks. Ladder logic diagrams, which are in many ways similar to relay logic diagrams, are frequently used to graphically generate programs. When putting together a ladder logic diagram, you should always bear in mind that the symbols in the diagram represent instructions rather than physical contacts. When the instructions in the program are executed, the states of the inputs are monitored. Depending on these states, various outputs are set either High or Low.
When generating a program, it is a good idea to work from left to right and to only start a new row after the current row has been completed. The second point is also necessary because the program checks for empty rows. You should also make a habit of always assigning a particular output only once when generating a PLC program. If the same output is used more than once in a program, this output will be assigned the state that it receives in the last row in which it is located!
|--||Input instruction||Output instruction||Timers||Counters||Alarms||Analog inputs|
|Declaration||I, Q (0-31) M (0-255)||Q (0-31) M(0-255)||T (0-31)||C (0-31)||A (0-31)||AD (0-31)|
|--||Positive Transition||Negative Transition||Counters||Timers||Alarms||Analog Inputs||Alarms|
|Mnemonic||PT||NT||CTU, CTUD, CTUD||TON, TOF, TP||A||ADCIN||LRM|
|---||Mnemonic||Ladder Editor||Simulator||PLµX hardware||PLµX Mnemonic|