kratmel

Report - use HSC (#3) for count Z pulse works fine in this application. Tested for long time (approx 8 hour) - machine not stopped and all parts is OK.

Due to the fact that you have replaced the full version B10 of the controller with a simplified basic version B5, the functionality you have programmed probably does not meet the capabilities of a simpler PLC controller. That is, if you wrote a program from scratch for a simpler controller - probably the Unilogic environment would tell you that some of used functions are not supported. By making a simple replacement, you have avoided the messages of the Unilogic environment, but probably both used controllers are not equal in capabilities. Some option in Unistream built-in manual is marked with "For UniStream 7″ Pro only".

This is realy old SIKO IG 11 series abx-1000-3-pp It is also strange for me 1000x4=4000 increments. But it is present on Jagenberg macnine cirquit diagram = 1000ppr. Main goal - start-stop overtaking hooks on Startposition - 150 pulse after Z pulse (120degree) and 1_Stopposition - 1200-1300 pulse after Zpulse. Than if Z pulse losted - machine do not stop in Start position. Than 1 ppr error is not problem. Main problem - do not lost every Z pulse.

Thanks Aus. I think about it, but shaft is used for drive floating overtaking hooks. It can be installed in different position on all shaft length. The main problem is the customer - he needs more speed without any additional modifications of the machine .

Now i found one more solution that can be tested. I can connect only A signal of my encoder - Pin I2 and use reset pin I3 for evaluate Z as reset signal for HSC. Problem with 4 times lower accuracy but maybe stable with reset counter after 120 degree. But in PLC pdf i can't find minimal reset pulse duration parameter.

Thanks Joe, i have on shelf one of I was already thinking about testing this device. However, in the process of analyzing the already assembled circuit, I came to the conclusion that I can rearrange the input signals and try to use the third counter, which is on board the applied PLC. Then now i have two possible solution and can test it on machine. I wonder if there are any other options?

Hi, In my last application I use V130-33-TR20 PLC. Applying an interrupt (1.25ms), I was able to get a system that controls the clutches to drive the mechanism. As always happens in the process of modernization of the old production machine - it had to work at low speeds provided by the manufacturer, but as a result, customers wanted to triple this speed. Accordingly, the applied control algorithm began to give unpredictable failures at increased speed. After analyzing the problem, I realized that the encoder used in the machine has three additional Z pulses per revolution. Z pulse has a length equal to one pulse of the encoder (1000ppr used). Accordingly, the interrupt method (Immediate read input) used to interrogate this Z pulse sometimes does not "see" a too narrow pulse at increased speed. My idea is to use another HSC (MI1) channel for find Z pulse (count it) in interrupt routine. So my question is: What other tricks can be used to ensure the recording of a short Z encoder pulse? P.S. The accuracy of the definition does not play a decisive role. (+-50 main encoder pulse possible). However, skipping the definition of this pulse leads to damage to one part produced by the machine.

Hi, maybe some next step help to find solution: 1) Try to use separate USB to COM converter and PORT1 of V570 to run connection (V570 com port CS cable needed). This is for Visilogic installation check. Result? 2) Try to use short USB cable for V570 connection ( For test power +5V from Laptop to V570). Result? 3) (the same test as #2) Try to use USB hub with external power for connect USB V570 to Laptop. 4) Try to change COM port # used by V570 USB-com driver in system and try to use com port # do not used by another drivers. 5) Last steps on video from DELL (2021) https://www.youtube.com/watch?v=xRnferpaMBU P.S. Maybe it was only Win10 issue (update, antivirus, UAC, ect.) P.P.S. Try to go to V570 info mode and check is it any information sended to V570 when Visilogic try to connect. You can check it on working and not working Laptops.

On one of PC used with Visilogic i must to delete COM port and restart PC with PLC connected. After automatic reinstall port - communication is OK. Something in PC use COM port in "hidden" mode.... !?!

Thanks, Aus. In table do not present my favorit 9.8.65, no changes from 64, or changes is only in Visilogic?

It is not possible. High speed CPU to panel connection and power must be as short as possible. Maybe best solution - use Unitronics panel (VNC) and Unisteam PLC without HMI (Virtual HMI). https://www.unitronicsplc.com/unistream-series-plc/#1449515769763-3521ed84-35551451602511853

Quastions; 1 What expansion module used EX-A1X or EX-A2X? EX-A2X is isolated and more stable. 2 How much W is power supply capacity? If it low - install NEW another one with more A on 24VDC outputs 3 Is it possible that on output present relay or valve coils without diode clamp? If Yes - install diode clsmp to all coils 4 Is it some VFD installed near PLC - if Yes - please connect -24V power supply wire to machine GROUND (EARTH). 5 Is it possible that on some output present short circuit? And some times PLC activate this output and restart PLC with error?

Please see this topic But if you need enter something to displayed MF (ML on display) - maybe some add input display needed. You can also use ML to MF conversion for this input display. And as result correct short display on main screen.

Yes. This is original connecton for 3 different types of sensor I try to use "Paint" for show only 2 wire PT100 on all inputs

Great solution, and an even more exciting application ! "The Art of Computer Programming" (Donald Knuth). "The Art of PLC (Ladder) Programming" (Isakovic)

Hi, i try to decode Isakovich Enigma code Then answer for Number 3: Code do sorting numbers placed in MI13, MI14, MI15, M16, MI17 ....... (If we change first Block in row 5 from > to < code change sorting direction). If we change numbers in first row - we change MI used for sorting in this code. Something like C++ for Visilogic....

You can also find sensor with 4-20mA or 0-10V output, or use PT100 to 4-20mA separate converter.

As i see in siemens pdf - coil address is W#16 register - then it can be from 0000 to FFFF in hex. Maybe issue is with correct numbering in modbus - 0 in unitronics +1 in standard modbus? Please check this.

Ausman's answer is very close to the solution. Therefore, we consider Number 2 solved. After all, thanks to his tips, I found a way to solve this Sometimes, even in simple task with the encoder, you need to show on the screen that the movement is right - left, or up - down. It is also important to know when the object stopped.

Number 2....

Answer ON-OFF-ON-OFF day by day... 1010101010101010101010101010101 Maybe it used for control flowers watering? Or for make correct rise and fall signal at 00.00 everyday. But what with 30 to 1 or 31 to 1 update...

You are right, Aus! ....one of this audiophile (with self made and expensive valve amps and expensive headphones and speakers) - my friend posted photo of this vinyl from collection on local forum. Maybe now this vinyl record is already a very expensive antique!

rare vinyl sound :)

You can write something like 1,2,3..... send to port on panel and do loop by connecting TX to RX on panel (best idea -connect it on connector on PC end). Then try to see what happend in buffer.

It is strange. For me, in this case, it is important to determine whether it is a hardware or software problem. According to you - you saw in the buffer RX from PC and panel to PC TX. Question: Did the answer reach from the panel to the computer? I think not, so the TX panel line is either dirty or damaged. So the test is to measure the voltage of the logic "1" at the TX output of the RS232 PLC port. There should be a level close to -10V relative to GND. If it is not there - then ADM202EA - failed.