86 files
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PC Module Status
By Ken Roach
In applications where unreliable IP transports (such as wireless) are used some users report "flaky" Produced/Consumed tag connections and I/O connections over EtherNet/IP.
Rockwell never recommends wireless Ethernet for I/O but some users overlook this recommendation or install links that should be reliable enough but due to installation or configuration issues are not and need to be troubleshot with the participation of the control system.
This logic example is a diagnostic tool to provide a timestamp and duration for connection faults. It is written for a controller Producing data to another controller over EtherNet/IP but would work the same for a connection across ControlNet or the ControlLogix backplane or for an I/O connection.
The program was written using RSLogix 5000 v12.06.
Just putting the remote Controller into this Controller's I/O tree is enough to establish a connection; the Produced/Consumed tag (called Produced_Data on the producer side and Consumed_Data on the consumer side) is not strictly necessary.
I've used logic like this to find interference from motion controllers or heavy motor starters as well as microwave oven interference in the 2.4 GHz range. It's not a cure-all diagnostic tool but it can tell you when and how often a connection is failing.
This logic may be used in conjunction with the traffic analysis tool triggering example to capture data on an Ethernet network on both sides of a connection failure event.
1660 downloads
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Dialing a Cell Phone with a Micrologix 1500 using a Modem Attached
By Chris Elston
This wasn’t a normal “job” per say but more like helping our machinist staff from babysitting the Japax Wire EDM machine. For those of you that don’t know a wire EDM can take a long time to make cuts in a part sometimes. There was a part that we made t
4411 downloads
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Sample PLC Intergration with a Mold Machine
By Chris Elston
This zip file contains a complete Allen Bradley PLC file and Panel View application of a mold machine and automation intergration.
5779 downloads
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Toggle Bit
By Chris Elston
Want to have a bit that are low in 0.5 seconds ond high in 0.5 seconds and this in only two rungs. This is for verison 10 of RsLogix 5000 but if you don't have that version here it is. Make one timer named Timer Make one bit named Toggle. RUNG 0 -
2747 downloads
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Updated
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Toggle Bit
By Chris Elston
Want to have a bit that are low in 0.5 seconds ond high in 0.5 seconds and this in only two rungs. This is for verison 10 of RsLogix 5000 but if you don't have that version here it is. Make one timer named Timer Make one bit named Toggle. RUNG 0 -
2635 downloads
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Save
By Chris Elston
Saving x number of Timers or Data in four rungs. Example uses 12 Timers saved in N7. Then Move values from the N7's to the T4 Preset. The N7 values being moved into the T4 Preset can be different from were the T4 values were moved into. Not valid for
1381 downloads
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Save Version 2.0
By Chris Elston
Same as the Save below but with Comments on all Rungs. Save Timer Program using Indirect Addressing in 4 Rungs.
1808 downloads
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FFL AND FFU
By Chris Elston
THIS EXAMPLE FFL AND FFU COULD BE USED TO REGISTER SOME EVENTS IN INTEGER FILE. IN MY PROGRAM SHOWS ME ON TOUCH SCREEN WHAT TIME DAY AND MONTH WAS MOVEMENT ON MY DRIVEWAY .IN THIS CASE CAN STORE UP TO 38 MOVEMENTS. THROUGH VIEW PANEL RSView32 OR OTHERS
3283 downloads
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ONE BUTTON MOMENTARY
By Chris Elston
RSS FILE SHOWS EXAMPLE RUNG HOW TO CONTROL TWO MOMENTARY OUTPUTS BY ONE MOMENTARY INPUT. PRESS PUSH BUTTON OR ENERGIZE MOMENTARY BIT FROM TOUCH SCREEN RSView32 OR PANEL VIEW TO MOMENTARY ENERGIZE OUTPUT #1 THEN PRESS AGAIN TO MOMENTARY ENERGIZE OUTPUT
3521 downloads
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HOME CONTROL BY PLC
By Chris Elston
THIS PROGRAM IS RUNING IN MY HOME. I HAVE SLC5/04 24K Mem OS400 AND TOUCH SCREEN TOTAL CONTROL 10 1/2" COLOR. IT CONTROLS SPRINKLERS POOL PUMP LIGHTS WINDOWS BLINDS DOOR LOCKS......
13493 downloads
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New Sequencer w/Bit Shift for Tracking
By Chris Elston
I decided to go off in the deep end and try some new logic using a dedicated bit files for each of my automation "heads" which I pre-set the bit conditions for each sequence. Then using a counter and Mask Move statements I shuttled the sequence
4160 downloads
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RAMP Function Example Logic
By Chris Elston
This is a sample clipped from a bigger program. This example uses a RAMP function to control an analog card 0-5V signal to a MicroMo DC controller. What the RAMP function does in this example is very useful to control an ACCEL or DEACCEL value to your an
5698 downloads
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Photoeye Make and Break Logic
By Chris Elston
Zip file contains RSS file and PDF file for those that do not have RS Logix 5.x version. Shows an example how to write logic to verify that your photoeye sensor saw the part and the part did move away from the sensor. Useful to verify problems such as s
4786 downloads
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Basic One Button Toggle 1.0
By Chris Elston
Zip file contains RSS file and PDF file for those that do not have RS Logix 4.x version. This shows a simple example of how to use one button or one input from a panel view to toggle an output "on" maintained and then press the button again to
6807 downloads
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3 Phase Motor Startup Logic
By Chris Elston
Zip file contains RSS file and PDF file for those that do not have RS Logix 4.x version. Ever have a bunch of 3 phase motors and wanted to start them up one at a time so you don't dim the lights in the building? Check this sample out. Also shows some
20048 downloads
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Day-of-Week Calculation for SLC 1.0
By Chris Elston
This program was written for an SLC-5/03 processor. It was designed to display date time and day-of-week to a Panelview 550. It uses the 5/03's internal clock for the time and date and then calculates the day-of-week. Newer revisions of the 5/03 ca
2592 downloads
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Pick-n-Place Sequencer
By Chris Elston
This sample program will operate a pick and place machine in manual or auto and includes forward and reverse stepping. Feel free to coment as Feedback=Learning
6126 downloads
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Complete Index Table - PDF Version
By Chris Elston
Same as "Complete Index Table" Only this is the PDF version for those people that do not have RS LOGIX 4.10 or any RS Logix version at all. "The PLC shows examples of bit shift to track parts on the index table."
8847 downloads
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Indirect Addressing Example
By Chris Elston
This is actually a whole machine project but it shows an example of how I used indirect addressing. There was a golden module routine that needed to be run on the machine to verify the tooling and test equipment. There is a lookup table created that com
5108 downloads
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Complete Index Table
By Chris Elston
This zip files contains a complete index table Allen Bradley PLC and Panel View application. The PLC shows examples of bit shift to track parts on the index table.
7276 downloads
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Bit Shift Example
By Chris Elston
This is example is RS Logix Version 4.10 which shows how to use a bit shift to track parts on an index table or dial.
5810 downloads
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1771-SDN Diagnostic Display tabulator
By Ken Roach
Makes a table of the "diagnostic display" values that scroll across the 1771-SDN indicator.
1538 downloads
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Micrologix 1000 DDE Demo
By Chris Elston
This is a demo of a simple temperature sensing demo that utilizes a Micrologix 1000 PLC and an Analog Devices Inc. AD590 temperature transducer. This demo should help with the understanding of analog inputs on the Micrologix PLC.
8306 downloads
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Small Pumping Station Example using Subroutines
By Guest
The actual application is very easy but I have posted it as a nice tidy
example of using subroutines and organising datatables to make the best use
of them. The benefit of this technique is that programs have a very clear
structure and it becom
7296 downloads
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