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Hi, I am having an issue with Omron CJ2m Cpu32 serial communication. I'm not receiving the data from pc to plc. sometimes during the production. When I recycle the power its working fine. Is there any Flag to reset the Serial port and clear the buffer on Cj2m VPU32. I contacted tech support and they told me to use A526.00n to clear the port. But I think A528.00 is not for CJ2m cpu32. I'm new to Omron programming and serial communication any reply or response would be helpful. thanks in advance.

Hi. My goal is to communicate from a Wago 750-881 Controller to CJ2M With ETN21 on Modbus UDP. I can only find Modbus TCP function Blocks but would prefer UDP. Does it excist ? Cheers. WagoGrim

hi everybody i have a network with 2 pieces cj1m and 2 pieces cp1l communicating with a ns15 monitor. everything is fine. i need to connect an ixt4a monitor in that network. my question is : do i have to make new routing tables or it is not neccessary? my routing table for cj1m and cp1l cpus are attached. if then i have to make new routing table so that the cj1m will be able to communicate ixt4a monitor, how am i going to do it for both monitors? Any help will be mostly valuable and appreciated. thanks

Hello, I am not familiar with the Omron PLC's. A PC is connected to the peripheral port of an CJ1M CPU12 PLC. The write command the PC is transmitting to the PLC looks like this (ASCII): "@00WD0070010055*." Can you tell me what kind of communication protocol it is using? It is a public or proprietary protocol? Thank you!

Hello everybody, I have CJ2M-CPU35 connected to couple of devices over ethernet IP. I would like to know which bits in CIO area (25 words for built-in E.Net port starting at 1500) gives me the status of Individual nodes (i.e. connected or not connected) Tried to go through W465 but there is a lot of information and I'm getting confused with built-in port, additional E.net IP units, Fins TCP, Fins UDP etc.

Hi All. I have a problem with D memory area. I have PLC CJ2M with ID211(DC input), ID211, OC211 (Relay output), OD212 (Transistor output) on the CPU rack. When I turn on all outputs in the OC211, all my datas in the D memory area is set to 0. What could be the problem? plc_project.zip

Hello People, In my school we had an assignment to program a Sorting machine using an Omron PLC and CX-Programmer. Now we got the assignment to make an HMI that we can open on our own computer (Windows 8.1) so that we can control various things of our program, such as reading and writing bits, and other data (To the PLC obviously). Now I only have very little experience in reading and writing data from a PLC (Using a PC), I have used the libnodave library to connect to a Siemens S7-300 PLC. With this I managed to read and write bits, and also read and write data to a DataBlock. We wrote this program in Visual Basic 2013 using the .NET Framework with the libnodave library as an added extension. Now I have searched far and wide on the internet but have not come across any good examples of how to do this with an Omron PLC. So I hoped that I could get some advice from you guys. What I'm asking is if anybody here has maybe a link to a guide/ example program/ manual that could get me forward? And if I can easily get this done with Visual Basic, by adding an extension, could anybody tell me which extension this would be? And where I could find it? I appreciate any help. :D Thanks in advance, BitsNBytesRookie

I'm new to Omron, and after several days of diving into manuals trying to figure this out on my own and giving myself a headache I've come to accept that i need help. my task is the following: Control of the discrete and analog inputs/outputs in a DeviceNet system using an Omron CJ1M PLC’s and PT’s. Use at least one thermocouple, one analog input, and one analog output for the DeviceNet network. Use a pushbutton and a light for the start of the process and an indicator for the started process. I have a Drt1-Ad04 input, a Drt1-ad02 output, and a Drt1-ts04t temperature control. My devicenet is Cj1w-drm21, The Omron system itself is a cj1m-cpu13 etn21. I have node addresses for my input, outputs and temperature control, those being 35 for input, 25 or 30 for output and for temperature control 5, 15, or 20. The ip address im using for this project is 142.214.143.9I'm using Cx programmer, Designer and Integrator. On Cx programmer I've managed to create an IO table but i have no idea on how to begin the program or even get a current reading from my generator.On Designer I've made what i believe to be the layout of the pushbuttons, I just have no idea of what addresses to enter.And on integrator i'm having troubles on figuring out how to make a routing table. I've went through many manuals and either i'm missing something really basic here or I just have no idea on what I'm doing. The only advice I was given was to dive into more manuals and find my addresses for my inputs, outputs, and temperature or to find the information from an outside source be that a forum or customer service. I am able to provide more information, and screenshots of what I have done if needed. Any kind of help would be greatly appreciated!

Fast question I have encoder 1000 pulses per one revolution, and I set in settings "Differential Phase Input" - so I have 4000 pulses for each revolution. To use PRV2 - C2 needs information about pulses per revolution. Should I set #1000 or #4000