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plc simulator conquer your automation
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plc programmable logic controllers can
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significantly reduce the cost of
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manufacturing a machine the PLC
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programming can be reduced as much as
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50% with the use of simulators
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a PLC simulator is a piece of software
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that enables a programmer to test their
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code without the need for hardware this
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means that the logic can be proven
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before execution in the actual PLC
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imagine trying to become an airplane
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pilot without a flight simulator this
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could be disastrous we will examine both
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online and offline PLC simulators the
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online PLC simulator PLC fiddle
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demonstrates how to learn programming in
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your web browser over the internet
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offline programming involves downloading
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and installing software to run on your
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computer simulating the PLC the Do More
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Designer Simulator will help you take
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your potential to the next level let's
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get started detailed information
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contained in this video can be found at
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a link has been put in the description
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below our website offers extensive links
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references and coding samples making it
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a one-stop shop for all your automation
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queries accutomation.ca
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what is a PLC simulator
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a PLC simulator as mentioned before is a
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piece of software that allows you the
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programmer to test your logic code
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without the need for actual hardware
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your PLC logic code is executed in the
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same way that a physical PLC will
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execute if we look at the basic PLC
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ladder logic program then the following
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happens one the inputs are read two your
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program is solved from left to right top
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to bottom the output from the previous
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rung is available for use by the next
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rung three communication and diagnostics
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are performed the step may or may not
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happen depending on the PLC simulator
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used four the outputs are written this
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is a scan of the PLC simulator similar
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to the actual physical PLC the cyclic
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nature of the scan is typically slower
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in the PLC simulator versus an actual
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physical PLC this is usually due to the
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overhead of the computer which must
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handle physical components such as the
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screen keyboard and mouse as well as
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software components like the operating
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online versus offline simulators
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online and offline simulators are often
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confused with online and offline
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communication to the physical
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programmable logic controller PLC
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since we do not need hardware with a PLC
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simulator our programs are tested in a
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virtual environment on a computer an
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online PLC simulator requires an
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internet connection and operates within
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your web browser the online version of
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this simulator needs an internet
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connection since it runs in your browser
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no software is installed on your
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computer online PLC simulators are
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generally used for learning and training
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in basic PLC programming concepts the
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program's instruction set typically
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provides fundamental programming making
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it an ideal choice for learning an
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offline PLC simulator is typically a
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software package provided by a
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manufacturer of programmable logic
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this simulator enables you to test and
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troubleshoot your PLC logic without
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requiring physical hardware you download
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and install the software on your
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computer where you can program your PLC
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logic using the manufacturer's tools
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after programming you can test your
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logic using the included PLC simulator
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we will now explore examples of both
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online and offline PLC simulators
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plc fiddle online PLC simulator
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let's now examine a free online virtual
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PLC simulator called PLC Fiddle it will
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enable you to create simple PLC ladder
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logic code directly within your browser
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free of charge this is an ideal way to
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understand PLC concepts for industrial
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automation all of the basic PLC
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instructions that come with most PLC
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units have been incorporated into this
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virtual cloud PLC software the software
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consists of three main parts variables
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and control instructions and ladder and
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simulation let's now create an example
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you will see that when we start PLC
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fiddle a start stop circuit has already
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been made when we select the off button
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in the variables in control this will
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turn the variable on our ladder logic
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constantly scans and turns on the motor
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the motor remains on even after the
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start button is turned off this is due
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to the motor parallel ceiling contact
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under the start button
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the stop button when turned on will stop
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the motor let's add a jog function to
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this existing ladder logic start stop
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add two more boolean variables jog and
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jog work bit the jog function will allow
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the motor to run only while the jog is
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when it turns off the motor will stop
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under the motor ceiling contact add the
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we can immediately test our circuit
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since our ladder logic is constantly
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being solved selecting the jog will turn
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on the motor but it will not turn off
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the motor when the jog is turned off
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this is due to the scan of the PLC we
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must create a delay for the motor
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ceiling contact when using the jog use
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the jog contact to turn on the jog work
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bit on a new ladder logic rung add the
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normally closed jog work bit beside the
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motor ceiling contact
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operate your logic the jog button now
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functions as expected and the motor
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stops when jog mode is turned off
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we have created a series of examples
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using PLC fiddle to demonstrate how to
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program a programmable logic controller
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if you are enjoying this video please
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hit the like button below keeping up
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with all the latest automation
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innovations can be difficult so hit the
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subscribe button remember to hit the
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bell beside your subscription to receive
6:40
do more designer software offline PLC
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unlike the online version of PLC
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simulators the offline PLC simulator
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requires a download software is
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installed on your computer from the PLC
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manufacturer's website one of the
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easiest offline PLC simulators is in the
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Do More Designer programming software
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our learn PLC programming free now video
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series will guide you through
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downloading installing and using this
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completely fully functional software
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package typically the offline PLC
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simulator demonstrates the ability to
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communicate both online and offline with
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the simulator this provides a more
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accurate representation of how physical
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hardware will function the instruction
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set for the PLC is typically the same as
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the manufacturer's hardware providing a
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precise representation of the logic
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being executed our Do More Designer PLC
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simulator appears as follows we can
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control the inputs whether discrete or
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analog and observe the output function
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according to our logic let's enter our
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ladder logic for the start stop jog
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circuit just as we did with the PLC
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fiddle online simulator
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once once we have entered our logic we
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can accept it this will check the syntax
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of the code to ensure that no errors are
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present when it compiles
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use the right to PLC icon to transfer
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select the status icon to view the
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status of our logic as it is being
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solved we can now operate the inputs to
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ensure that our ladder logic circuit
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works since this is a fully functional
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programming software we can use
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additional tools like data view to see
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variables for our program since this
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software is installed on your computer
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we can also use the simulator to
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communicate through the serial and
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Ethernet ports this can test additional
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equipment on your system the built-in
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simulator functions just like a physical
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doour PLC BRX enabling you to immerse
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yourself in the world of automation
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online and offline PLC simulators offer
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different levels of realism and
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complexity each with its advantages and
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simulators provide a safe and
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cost-effective means of learning and
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training in PLC programming during the
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development and testing of your PLC
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logic simulators can increase your
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efficiency and enhance safety
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machine simulators allow you to program
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realistic applications teaming this up
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with the PLC simulator creates a
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learning environment
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to see this in action with the
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userfriendly Do More Designer PLC
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simulator click here
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click here to learn more about the
