Micro800 Counter CTU CTD Explained
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- เผยแพร่เมื่อ 2 ก.ค. 2024
- In this video we are going to go over the CTU Count Up Counter and CTD Count Down Counter instructions that can be used by the Allen Bradley Micro800 PLC line in Rockwell Automation's Connected Components Workbench software. This includes the Micro810, Micro820, Micro830, Micro850, and Micro870 PLCs.
View the entire Micro800 Connected Components Workbench lesson series at twcontrols.com/micro800-conne...
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Thanks for watching! If you are looking for the complete Connected Components Workbench PLC Training series, visit twcontrols.com/micro800-connected-components-workbench-lessons
Most of time i watch your tutorial in ccw
Great!
you made this so easy and fun to learn THANK YOU!
I'm so glad Will!
Great video Tim, thanks!!
Thanks Al!
Good video, clearly explained.
Glad it was helpful!
Thanks Tim,
you are the best
Thank you Ahmed!
Why numeric data entry with decimals are LREAL? Is possible to introduce a number directly as a real? I mean without using any to. Thank you.
Great video as always. What can CU bit do? Can not understand 12:42 , "instead there are ten things again " part, Thank you very much
The CU bit is a "storage" bit so that the counter knows that it has already counted the current false to true transition.
otimo conteudo.
Thanks!
Hi Tim, great videos! Is there a way to not have the text for an input crammed into the symbol? I've tried having the Alias selected only, but this leads to issues with editing/viewing timer PTs etc?
Yes, it is a little tricky when it happens. Right click the shortcut to CCW and select properties, then compatibility, then it is one of the DPI settings.
Great video! I have one question sir! What if I want to select (from the screen) a value and this pass to the preset of the counter? Good bye from México
Hi Memo. I have a video coming on this in our HMI series but you will need to create two tags. One is a DINT, lets call it DintPre, and another with a type of TIME, lets call it TimePre. Set the time in milliseconds in your HMI to DintPre. Then use the Any_to_Time instruction to convert this to TimePre. The on your timer, put the TimePre in the PT. I hope that helps Meme and good luck!
I want to enter the PV value from the HMI. Since I can't browse tags, like FTV, what is the shortest easiest way to get a bool or numeric value to and from the HMI.
This series touches on that. twcontrols.com/allen-bradley-panelview-lessons
Sir, do you know if the Micro 800 platform is capable of importing tags from a 750 or 525 series Allen Bradley drive the way a Compact or Control Logix can?
Hi Ethan, not sure what you mean by import tags from a Powerflex. Do you mean as in the tags that appear when you add a Powerflex to the I/O configuration? The easiest way is to program a User Defined Function Block such as in this lesson.
twcontrols.com/lessons/control-an-ab-powerflex-525-drive-with-a-micro800-micro820-plc-with-a-user-defined-function-block
Hey Tim, I tried sending the CTUD_1.CV to the HMI but no luck. I need to know more about the data structures of the micro800. I have a little trouble getting what I need to and from the HMI. I have to admit...I am surprised that A-B made a low cost product that is very useful.
Open up the Local Variables for that program and you will see the counter, a CTU would default to CTU_1. Open it up and you will see all of the data structures, the CV is a DINT.
Hi , Could you please advice counter values (Preset & Accum) can be use DINT - can be use for compare comments, Appreciate your help thanks
Great question. then preset and accumulated values are in the TIME format. You can use the ANY_TO_DINT instruction to convert it to a DINT
Hi i've been purchasing master K10si LG PLC (10 years old PLC, ²nd hand) . Please🙏 make some tutorial about it. 😁
Can't say I've ever heard of that PLC.
Hey Tim, I am trying to write a value from a T4T HMI "Numeric Entry" to the "CTUD_1.PV" preset value but it gives me a "Illegal access to function block instance parameter" fault. The data types are the same, DINT, on my MOV instruction. How do I use the HMI to set a counter preset value?
You wouldn't use a MOV, you need to assign that tag...such as myHMIPreset...to the counter preset.
How do I make the count go up if I'm using a simulator? I don't have a physical button that corresponds to the counter like that. I tried clicking on the counter and that doesn't do anything.
You can toggle the inputs on your simulator. See if this video helps.
twcontrols.com/lessons/how-to-use-the-allen-bradley-micro800-simulator-in-connected-components-workbench
Teacher you have curse the CCW complet?
Hi Wandson. I'm not sure I understand your question.
so far on these exercises my controller keeps getting program time exceeded the watchdog timeout value fault. code 0x0000.
That is strange John. You are just using the counter instruction?
@@TimWilborne yea, probably because I was using the using the simulator I guess.
@@johnrece6622 Which processor did you have selected?
@@TimWilborne micro 850 sim
@@johnrece6622 I get this too John. I haven’t got a fix for it, I tried changing the Windows affinity (in Task manager) as suggested in other videos but didn’t work for me. My system is running on a boot camp Mac.