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Dear Support Team, We have a problem in our AB PLC 5/60 Enhanced device(1785-L60B/E), it is a redundant AB PLC system  and controlling a Water RO plant. Another paralleled connected system is working fine. 1. Once power went down and power up, the PLC started showing "PROC" error- Steady RED. Loaded the program from EEPROM, the PLC "PROC" error is gone but the DH Channel A RED LED is started Flashing. 2. After loading the program, the program vanishes automatically even when there is a power, and again showing "PROC " Error - Steady RED. Changed new Battery. 3. Looking for the replacement processor,  found same series and part number but the Firmware and REV is different. Advise the selection of suitable replacement. 4. The PLC program is password locked. Any solutions or work around to solve the issue.    

Hi all. Firstly, I am not a programmer, I just need advice. We have HMI's using NS-Runtime and we keep getting this message. Now, this is why I am contacting you all. This has happened over 20 times on 20 different HMI's which we have replaced over the last 3 years. We have been told by our software supplier that the com port is "on it's way out". There is NO WAY over 20 hmi's over that period will deveop com port faults. So my question guys, can someone give me a few tips on what to try before I change HMI's over ervery dang mponth please? I am really at the end of my tether here. We connect our HMI's to the Omron PLC's via a standard serial. If we change to another HMI the machine communicates after obviously a long period of downtime. Should we reset the plc? I will take ANY advise please guys.

Hi everybody. I'm just getting started with GX Works 3 and I feel a bit lost. If I have an external help file for my function blocks, how do I register this in the program? I can't find it anywhere when I double-click the fb library or in the e-manual Viewer. The file format is .CHM and I have imported this to GXW2 earlier.   /Niklas

Hi everyone, recently we got a complain about UM password protection in the CP1L. So our user intended to apply password to a CP1L PLC which doesn't have battery installed. They were testing to turning off the PLC for about a week. In the 8th day, they turned it on again and tried to upload the program from the PLC. But after they input the password, and error shows up which indicates whether the password is wrong, or already inputted wrong 5 times in a row. Further checking shows that A99.12 memory was turned on which indicates that wrong password has been inputted 5 times. This was not the actual case since we make sure no one was using the PLC in those 7 days. A99.12 by its nature is not a non-retain memory. Is it possible that during Power On, the memory is unstable that it turned On by itself? I know it can be the case on some areas like DM / WR and also the RTC memory. And since A99.12 is a Read-Only memory, we cannot use P_First_Cycle to ensure it's turned Off as what we used to do with A500.12 (Inhibit Output). Currently I'm testing it by myself, for 3 days had left the PLC Powered Off. If anyone had inputs about this please advice. Thank you

I have  Modicon Micro TSX 3722 Version 1.0. while i am doing communication of PLC and PC i am getting communication Error.  I am not able to download Programm in PLC. Please find attached image of error which i am getting .   please help me to resolve it.   Thanks in advance. 

hi.  i want to make some program that work with indirect adress. example, i make program with many much type. I make with Got-1000 mitsubishi.   can you bring me some example? i am sorry, my english is Bad

Hello I am at a loss here. There is something happening with TON_2 that also affects the variable STEG. Even though the input to TON_2 is false, IN and Q are true. Suddenly IN and Q turn false, and at the same time variable STEG makes a jump from 3 to 4, even though criteria for this step is not confirmed. Have had to override this fault by introducing a SR-latch and outside of block make a comparison between NIVÅ_FÖRRÅDS_KÄRL and 150.0 By the way, TON_2 is not declared globally. Would be very happy for suggestions and pointers. Cheers // DAN PE2 Jump.avi PE1 Jump.avi

Dear All, Hi my name is arum. I am just starting my own project using CS1W-LCB01 and Omron CS1G CPU42 H, and i am using CX process to program the LCB01. The first time i try the LCB, it was doing well, no error occurred. But now, I have some problems here. 1. Internal board error always appear 2.Error 0A0D was detect when i am try to download the program to LCB. Iam using CX server communication driver. Because the problem always occurred, I clear the PLC memory then download again the PLC  configuration, and then restart the PLC configuration every time this problem occured After some times, it doing well. 3. But now, I even cant download the program because there always communication timed out Anyone had experience with this case. Please give me some advise. Thank you in advanced.    

what is this error 2200? my PLC dont have memory card I think the data is erased how I can recover data  

I am using GX Works2 and I cannot use the format "Label.1" to access the first bit in the word represented by label. Is this a function that just does not work or is it abnormal. Is there a way to do this easily. I am using structured ladder. Also is there a way to use the K*, notation with an array of bools represented by a label. I saw elsewhere the syntax K8<Label>, but that will not compile for me.   

Hi guys, In my current project, I have a number of energy meters (128) communicating on Modnet (TCPIP) with Citect as different IO devices. I have a screen, where I wish to display the communication status of each IO device. If there is an error communicating with a particular I need to associate a tag for displaying the same. Can someone guide me how to accomplish this.   Thanks for looking in.

Good day lads, we encountered an error on a NByW-TW00B HMI, showing "Print Error 7300-FFFB". Checked already on the manual, which mentioned this : "Driver & UI Printer Settings Disable" (V106 manual, Section 7-9). What's worse is that NB manual doesn't give any workaround for any printer error. The NB is not connected to any printer. The "Enable Print" tickbox is unselected (checked both in the program and in the System Setup Screen). Also there is no button/macro which triggers any print function. Any of you have encountered this? Any advice is appreciated. Thank you

Im having some trouble with a PLC and looking for a some help. Whats happening is output number 3 is stuck on. I thought maybe it was just the PLC. I pulled the program tried it on a new PLC with no luck. I checked for faults and the handheld shows no major faults. The output that is stuck on is for a door, its telling it that the door is open. Any help would be great.

Hi everyone, First time posting here, sorry if I screwed up any rules on this forum. I have a logic file that was created two years ago. I'm using RSLogix 5000 version 20.04. The customer has owned it for two years, and I just got the latest copy back from them to do a kit. So when I go to save my changes (offline), I get "Failed to save the project as 'filepath'. An unexpected CTree error occurred." Error 753-80042211. (see attached screenshot) I tried searching this error on google, with no results. I went to the help dialog box, which wasn't helpful. (See second attached screenshot) I can't think of anything else to do, my boss is gone until two weeks from now, the other guy in my department has less experience than me.   Can anyone think of a way to fix this? Otherwise I'm completely stuck. Don't think my boss will be happy with me getting nothing done for a week.   The help file says: Error saving the project to a different file An attempt to save the project to a different file failed. The error message you receive indicates one of the following conditions: Name is badly formed The name does not follow the IEC-1131 Name standard. Enter an IEC-1131 compliant name. >>> I tried the name "test" with no success Access denied If the file already exists, make sure that you have read/write privileges to it. >>> It is not set to read only or anything of that sort In use by another process The file is being edited by another process. Close the file in the other process if you want to save over it. >>> Tried making a copy to my local drive, opened that one, still won't save Path doesn't exist Make sure that the path exists. If you are saving to a network drive, make sure that you are still connected to it. If you are not connected to the drive, you can save to another drive to preserve any work in progress. >>> Tried making a copy to my local drive, opened that one, still won't save   Not enough disk space Free-up space on the drive you tried to save to, or choose another drive. Note: RSLogix 5000 cannot save a project to a drive with less than 2M of available space, regardless of how small the project file size. >>> There's way more than enough space for this file

Hi to all, i have melsec plc Q2A CPU error. i did plc diagnostics with the software and realise this error code 2300 and 2401. i reloaded the programme and tried to reset the plc but error still exist Please kindly help.

Hello everyone. I can't find my ST program step count in GX WORKS 2. Does anybody knows where is program step count in GX WORKS2 ?

Gents, i'am getting error code 8 when i try to read from another plc . Both are siemens im151-8 plc's. I hope anyone can help.   Regards, Mucho

Hai, I have downloaded the program into the PLC, downloaded the program into the HMI VIA ethernet.When I turn on the HMI it's showing "PLC RESPONSE ERROR". I can write command to plc through HMI, But I can't read the signal from PLC, Does anyone know the meaning of this message or what I might be doing wrong or missing out?...CPU used:CP1L-EM40DT1-D, HMI used :NB7W-TW01B...PLC to HMI communication via ethernet... 

I used to use the Old Dos based MEDOC very many, many, years. I havn,t programmed for years now. We have GX Works 2 at work, and I am practicing programming an FX 3G - 40M to try and keep my hand in. Allthough I can write and read the program ok, the PLC keeps saying that it has no memory for the comments. Apparently the memory has to be set on the PLC. Any advice or information links will be appreciated

Hi, What is the problem when error led lit for fx2nc  mitsubishi plc  

Hello I tried to go online with MicroLogix 1200 through "1761-CBL-PM02 Series C" serial cable. I read its manual and it says i can use the cable to go online. I got these errors and i attached them. Can someone tell me why i am getting this error? Thanks for reading and have a good day !

I have a Mitsubishi servo Pak #MR-J3-40B with an error 25 and 95 flashing. Could not find any help on the web or in the manual. Any help appreciated.

 hello there ! all the variables are reals ... can anyone explain why i get a different result when i calculate c2 first ??? the two programs shown in the pictures are exactly the same ... the only difference is the posistion of c1 and c2 . please help me . It's not a logic  attitude in programming ..... Any ideas? Thank you

Dear sir, how to solve this problems non fatal error 9b, Omron cpu44 c200hx

Hi:           I am new to Mitsubishi, I have a FX3U-80M with I/O expansion, I am using GX Work 2 Structured Ladder and tried to download the plc program but failed with this error message "Upload or Download is not possible when Data exceeds capacity of the memory cassette, Check the memory capacity setting in the plc parameters"   At the moment the memory capacity set is 16000.   Can some help?   Thanks