[Soft]

I am curious what you mean by changing your question to 'soft'

[Soft]

Search the manual for your CPU for the GTS and SBR instructions. The subroutine is inserted after the main program END instruction. The subroutine is started with the SBR instruction and ended with an RT (return)  instruction. You may use a RTC (return conditional) if your subroutine requires it) Unlike many other programming languages there is no structure for passing or returning values, The subroutine is identified by a constant provided as an argument to the SBR instruction. You invoke the subroutine from within the main program using the GTS instruction with the same numeric argument as the target subroutine. I don't remember if you can use the GTS from inside another subroutine. Otherwise the operation is similar to other language subroutines. On invocation the main code stops, the code within the subroutine is executed, then the processing of the main program continues from the instruction immediately after the GTS.

[Question About PLC Programming for a Concrete Batch Plant]

The actual program will be fairly easy using comparison contacts. A catch will be that when an output is turned off to halt the flow of one of the components there will be some still falling. You'll have to experiment and find the amount to anticipate, probably different for each component.

 

[P2-550 order operation based on inputs]

I think the description of the system implies that the supply method will soon be inadequate for the processing speeds. I don't think that just program modifications will make up for that.

[Ramp program for rslogix500]

The way I implement a ramp is with a timer whose preset is the total ramp time. At any point the output is FinalOutput * (Timer accumulator/Timer preset)

[Click PLC and Remote Access via Secomea SiteManager]

Try using Modbus if available.

[last 10 pcs average cycle time]

On 10/3/2020 at 0:53 AM, Hojland said:

B_calton. Where do I find the attachment 

It may have been lost on the site during the changeover. That far back it was probably on my work computer. I'm retired now (2016). I only have RSLogix 500 micro lite now. Sorry.

[Bits or Coils in Click C0-10DD2E-D]

There's a bit more flexibility in the Do-more line. That software is free like the Click and includes a simulator so you can check it out for no cost.

[Find a Tag in RSLogix 5000]

 

I think you meant Local:7:I.Data.4.  (Swapped 4 and 7)

[How to create structures and arrays of existing atomic data]

Yes, timers and counters in the SLC500 and Micrologix worlds consist of 3 16 bit words One contains the preset time/count. Another contains the current time/count. The third is used as individual bits and, at least in the timer, a small numeric section to compare with the system real-time clock. Refer to chapter 8 in this manual for more info.

 

https://literature.rockwellautomation.com/idc/groups/literature/documents/rm/1766-rm001_-en-p.pdf

 

[How to create structures and arrays of existing atomic data]

The SLC500 and Micrologic do not have the ability to set up user defined structures. They have some items (counters, timers, strings and others) which are structures. In the Compactlogix User-defined types (UDT) can be set up. Google for UDT and RSLogix.

[Ethernet Information]

First a link to the air pressure manual would be helpful.

[up-down counter]

Whatever works in your application is right.

[up-down counter]

I found it easiest in a similar application to just do the ADD and SUB blocks and not use a counter at all. Actually mine was 4 separate Up counts and one Down count input. With the complexity it was more understandable to group the 5 rungs together with 4 up counts followed by the one down count.

[up-down counter]

If using ADD or SUB make sure to one-shot the conditions to do the ADD/SUB only once for each.

[up-down counter]

If multiple down counts occur simultaneously what do you expect as behavior? Will just one down count be appropriate?

[Why "RMS" Analog Input?]

I could see this for a discreet AC input or output module but I see no reason for an analog module. Do you have an example or a link to such cards?

[Modicon micro Comms Issue]

This area is for PLCs from Automation Direct. Please re-post in the 'Modicon' area

[Problem to read pulses (encoder) of VHSC24/C Card using CompactLogix]

I'm sorry that I can't help further. The only applications I worked on were much slower. I don't know if there is a module with PLS (Programmable Limit Switch) capabilities such that processing of counts is done in the counter card itself and directly controls it's own high speed outputs. Good luck.

[Problem to read pulses (encoder) of VHSC24/C Card using CompactLogix]

It will count and keep track of each pulse but the rpi will control how often the total is reported to the CPU. Your scan time will control how often your program can act on the total as reported.

[Problem to read pulses (encoder) of VHSC24/C Card using CompactLogix]

You didn't mention your program's scan time. You would still have to deal with that. The number of pulses between actions on them will depend on the greater of the rpi or the scan time. You may have to do more research on high speed processing.

[Problem to read pulses (encoder) of VHSC24/C Card using CompactLogix]

60Khz is a 16.66 microsecond per pulse period. What is your scan time? At an rpi of 2 ms you get about 120 pulses per update. Is that ok?

[Dispersion of an array]

Since 'dispersion' is a general concept you might use standard deviation (STD)

[Voltage Output Greatly Reduced]

You have the second output - O:5.1 - set to current output. That doesn't fit your description. O:5.0 is the first output on that card.

[Too SLOW?]

Mainly make sure the reset of the timer is last because resetting it resets the done bit. And of course the move of the counter's accumulator has to come before it is reset.