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Found 131 results

  1. Stepper Motor Control

    can anybody Know how to control stepper motor using PLC
  2. GX Works 3 - PID control

    Hi, I am using PID function (PID operation instruction) from GX Works 3 library but it doesn't work. I set all necessary parameters (sampling time, direction and upper/lower limit values + KP, TI). My input PID_Par is array of 25 points (in manual is written: "*1When auto tuning is not used, the same number of points are occupied as when the step response method is used."). For example, in GX Works 2, PID function works ok. Did someone have similar problem? Does someone have mitsubishi library (GW Works 3) with PID function that works correctly?   Regards Luka  
  3. Hello,I am sizing a feeder circuit for a panel according to UL 508A and came into a question:My input current is of 76.5 A (considering all the loads), thus, it is fine for me to use a cable of 4 AWG (max. 85A @ 75 c).For the circuit breaker I did 76.5 A x 1.25 = 96 A and then I selected a breaker of 100A.My question is: Is it ok for me to keep this configuration according to UL 508A? 100A breaker + 4 AWG load side cableOr do I need to level up the cables?Thank you very much in advance!
  4. Mitsubishi FX2N, Servo Output problem

    Hello guys, I am facing a problem that our Servo is generating output for only reverse direction, when we give forward command from HMI the output Y0 is active but when we give reverse command same outut Y0 is high, other output which is Y4 is not high, what could be te possible reasion.
  5. Mitsubishi FX2N, Servo Output problem

    Hello guys, I am facing a problem that our Servo is generating output for only reverse direction, when we give forward command from HMI the output Y0 is active but when we give reverse command same outut Y0 is high, other output which is Y4 is not high, what could be te possible reasion.
  6. There have been many good discussions on the applicability of cloud-based solutions for manufacturing and process control systems. On one side, some people have concerns regarding security and control of the information, on the other side, there are identified benefits enabled by cloud systems. From VMS minicomputers to DOS and Windows, from ArcNet to Ethernet, it is inevitable the industrial automation systems shall adopt the technologies that are getting predominant in IT general use; the current environment that I am calling the “Cloud-iPad era” is no different; therefore the practical discussion is not if those new technologies will be applied in the industrial environment, but how. This paper is not intended to join the conceptual discussion about the cloud, but just to present a few simple practical examples, where cloud technologies are already enhancing industrial automation solutions and enabling new business opportunities. CloudPracticalApplications.pdf
  7. Hello people, I hope someone can help me with this. The system is connected with 8 PLC's. I want to transfer the data memory of a PLC to another like this: D850 from PLC2 to D900 PLC1 D850 from PLC3 to D901 PLC1 D850 from PLC4 to D902 PLC1 D850 from PLC5 to D903 PLC1 D850 from PLC6 to D904 PLC1 D850 from PLC7 to D905 PLC1 D850 from PLC8 to D906 PLC1 The data memory is an integer.
  8. Hello, Completely new to Mitsubishi PLCs and I need to use a date and time stamp for data collection purposes. We have a Siemens PLC as well and this has the data type "Date_And_Time" which is what I need to replicate. I have been attempting to write my own data type but am struggling with how to go about this as it is not straightforward and I cannot find anything about how the Siemens Date_And_Time is made up so I have nothing to go off. Does anyone have an example of a data type they have made that is the same? Or is there a data type which does this already in GX Works 2 that I just can't seem to find?  Please help!
  9. Hi Everyone, I would like to know  if two S7-300 CPU can exchange data via MPI protocol using X_Put and X_Get blocks. is it possible to test the data exchange via PLCSIM to verify. CPU1 = 313C-2DP CPU2 = 312 Please advise. Thank you.
  10. Hello! I am beginner in PLC world, also in SIEMENS PLCs. I managed communication over private network. Now I have a problem that I get same values on all inputs. Picture below shows my configuration of driver and data monitor. First picture shows values when input I0.0 is in state 0. Second picture shows values when input I0.0 is in state 1. Physically on PLC only input I0.0 is forced to 1, input I0.1 stays 0. But data monitor shows both inputs as state 1. Where is problem? Is problem in PLC program, TIA portal? I saw some guys using DataBlocks but I am not skilled enough to use it. Third picture shows simple PLC program on my PLC. Please help. Thanks in advance!
  11. Flexible Sequence Control

    Hi everyone, I need an idea to make my program flexible. For example i have 3 functions; FC A, FC B and FC C. Before this the sequence of my program is A then B and lastly C. Now i want it to be flexible which I can choose the sequence first before starting the process. Please help me.  
  12. Cloud computing is a core component of the industrial Internet, and enabling devices to implement cloud management is an inevitable trend in the development of modern industry.   Haiwell Cloud BOX is a powerful and low-cost "Haiwell Cloud HMI without screen" created by Haiwell company after a lot of market research and engineering tests, which combines Haiwell engineers' excellent experience in Internet innovation technology and responds to the market demand of industry 4.0.     What is the cloud box? What powerful features does it have? ●  Built-in Haiwell cloud engine, integrated Haiwell cloud service, support cloud/mobile access control ●  Integrated HMI function, which can directly monitor the display screen through the mobile phone/PC instead of the HMI screen. The control is flexible and convenient. ●  Support A/B Key security mechanism, multi-unit network, database, multi-screen interaction, cloud camera remote monitoring,etc. ●  Support Haiwell Could SCADA cloud configuration software ●  Two Ethernet interfaces support star, tree, and bus Ethernet networking ●  Support MQTT protocol, support access to database server, easily realize data collection and reporting, connect to ERP/MES and other systems.         Haiwell Cloud BOX is a small, versatile and cost-effective " Cloud HMI without screen". Next, we will introduce how Haiwell Cloud BOX realize the Industry 4.0 Smart Factory solution. The above picture shows the device distributed in Beijing, Shanghai, Xiamen, New York and other places around the world. The remote monitoring of mobile APP and cloud website can be easily realized through Haiwell cloud platform, and remote PLC, HMI, CBOX and IPC projects can be upload and download remotely. The device supports the cloud alarm function, which can receive the alarm push information at the first time of the mobile APP or website if the field device has an alarm message,support cloud map, device location distribution can be viewed directly.   Smart Factory focuses on data integration in different places and realize unified monitoring and management. All cloud devices of Haiwell support MQTT protocol, and transmits it to the MQTT server via the Internet. The remote center database stores the sent data for ERP and MES system calls.   Smart factories value centralized monitoring and display. Haiwell cloud camera can easily realize remote monitoring of video; large screen controller TVBox can realize single screen and multi-screen in one display, and then display the screen and video monitoring of various places on the big screen through the Haiwell cloud platform to realize large screen electronic board function.   Smart factory focus on the secondary development of data variables in different places . Haiwell cloud configuration software can flexibly call variable data of devices in different places through the cloud platform to conduct secondary development configuration, making network monitoring more convenient for engineers.   The above is the introduction of Haiwell Smart Factory solutions, please look forward to more solutions of Haiwell industry 4.0 and intelligent manufacturing !   For more details, please refer to our company webstie:  http://en.haiwell.com/news/722-en.html My Wechat/ Whatsapp:  0086 15880530763  
  13. Weight Scale

    Hello - Not sure if this is the right place, I apologize if not. Just let me know if I need to move it and can delete and do so. But I am currently working on a project where I am collecting seeds (flower seeds, etc.) and when a certain weight limit is met I'll be turning off a vibratory bowl and opening a chute, etc. Looking for some ideas on the scale and how to do that process in particular. The smallest collection weight will be around 100mg, largest around 8g.  Mainly looking for ideas on the scale.  Thanks for any help/tips, much appreciate.
  14. Hello Everyone, We made a video about the simple explanation of the settings of the abb acq580 driver in the stage of water level control in multi-motor dirty and clean water cycle systems using the automatic commissioning feature of the ABB ACQ580 driver. Your comments and feedbacks are very important for us.  Video: Youtube            https://www.youtube.com/watch?v=JANGnykYYyw (For those who can't see the link) The video in our language(Turkish) but we put english subtitles. If you got any question, feel free to ask.  Thank you.
  15. hallo everyone ...i use mitsubishi Q00UJCPU and QD77MS2.. i try to make a speed control program and the speed wants to be changed during servo operating, i use dedicated instructions ZP. PSTRT1 (axis 1) and have tryed but it was only successful to change speed with "change speed control" function once ... is it like it? cannot change "change speed control" many times when servo operations?
  16. Lets say I worked in a factory that made multiple models of parts. I need to run data tracing on the off shift due to certain models only running on 2nd and 3rd shift. I want one data trace to capture one group of bits at Model 1, Then reset the Data Points and run again for Model 2, Model 3 and so on. So the Bits that I am mapping with the trace need to change.  I can change the trigger easy enough with my program. I see in the manual the CPU has a "separate memory area" for trace settings. Can this area be accessed from the Program so I can set my bit addresses to monitor to a word or E_?   See attached pic for clarification of what I aim to change through the program.   
  17. Good Evening, wanted to introduce myself. I've been in the Electrical, Instrumentation and Controls field for 25 years. I'm looking for opportunities to build control panels, any info will help.
  18. Hello - I've recently started my adventure into PLC programming and I've found this site to be very helpful. I took on a project that requires control of a cylinder - the short and skinny is that the cylinder will have to provide position feedback and stroke to various set lengths determined by position of a selector switch. So - If position 1 is selected, the cylinder will stroke 20"inches. If Position 2 is selected, cylinder will stroke to 25"inches - so on and so on.   My questions is how to best go about this process. I may be having a brain-block and not viewing this clearly, but something is not clicking for me and wanted some advice. Planned on using Allen-Bradley's Micro850 PLC (had one on the shelf, and CCW software is free so why not). Thanks
  19. Modbus Addressing in Weintek HMI

    Modbus addressing in Weintek HMI to poll data from Temperature sensor through RS485. In my system i have connected Temperature sensor to I/O Scanner has output in terms of RS-485 which directly connected to COM3 Port pin. No. 6 (as Negative) & 9 (as Positive) of HMI (Model No: MT8071iE) and HMI connected to PC via ETHERNET. I want to read temp on HMI screen via MODBUS protocol. So, can you please provide me instruction about addressing of MODBUS register in Easy-Builder Software so can read data of corresponding register. Because when i do compile i got an error like " Device no Response". I hope i will get reply from your side as Fast as possible to overcome this problem. Thank you.
  20. Cimplicity Auto Report Generation

    Dear All, I am having a problem with my cimplicity Auto Report Generation, When I Click on Generate Report, it shows "0 values collected" does anyone knows what's possibly could gone wrong here ??
  21.  Hi all. I have a question about how to set up the motor in rotary mode. My application will be a basic rotary table driven by a servo motor without gearbox between. So, in my servo drive axis settings, I select the motor as a rotary mode. then I defined the maximum position setting value for 360 degrees, and minimum to 0. So far so good. But the problem comes when I want to make an absolute move using the mc_moveAbsolute to move 360 degrees. Whit this settings the error "target position settings out of range " will come up. So, what is the solution to rotate 360 degrees without generating this error? if I set up the maximum value to 361 degrees and then if I rotate 360 the error will not occur and the motor will rotate 360 degrees as I aspected, but it's this correct ? or there is another way to do it? Thanks  
  22. Mitsubishi GX Developer

    Hello all ... i am a new plc user.. i am using D500 for taking value as it is a latched register.  i am taking value for a flow meter. i have two questions. 1. how totalizer is calculated from flow rate as my flow rate is in m3/h. 2. the value of register is gone upto 32000 approximately... i want that this value to go on.. i mean how 32 bit register is declared in plc .. a
  23. Hello Everyone I have a problem to connect FX5U with Inverter Mitsubishi D700. ( no  respond from inverter) . I did read and following the manual. Could any one can help me?
  24. Please assist me with the following; regarding the ME96SSHA-MB Power meter data transition with Melsec-Q series PLC; We acquire to read various values on dedicated Modbus storage address registers at the simultaneous into a Melsec-Q series PLC via Modbus (TCP or RTU)  for calculation purposes. Naturally, since the reading of these variables are to provide accurate instantaneous results, it is a requirement that these values are to be read at one scan.   However, as can be seen below, there is a gap in address register range – of which, if all of these are scanned simultaneously, yields an exception error when read. This error is only avoided by scanning these data sets separately – which is not ideal for our application – since accuracy in calculations is imperative.
  25. Please assist me with the following; regarding the ME96SSHA-MB Power meter data transition with Melsec-Q series PLC; We acquire to read various values on dedicated Modbus storage address registers at the simultaneous into a Melsec-Q series PLC via Modbus (TCP or RTU)  for calculation purposes. Naturally, since the reading of these variables are to provide accurate instantaneous results, it is a requirement that these values are to be read at one scan.   However, as can be seen below, there is a gap in address register range – of which, if all of these are scanned simultaneously, yields an exception error when read. This error is only avoided by scanning these data sets separately – which is not ideal for our application – since accuracy in calculations is imperative.