Micrologix 1200
Hi, Can anyone advise on this problem I am having with a Micrologix 1200 plc, at random times during the run phase (while the machine is running) the machine would stop because the plc has a flashing...
View ArticleFactorytalk view trend & data log
Hello, I have a question about factorytalk view trend & data log. 2 weeks ago, Data log modem power was failed so HMI control signal wasn't working. So I recover the power and reboot the plc and...
View ArticleLED status on MLC1200
Hi, Can someone provide information about function and interpretation of each flashing or steady LEDs on MLC 1200. For example where to look for when Fault LED flashes during normal operation and so...
View ArticleSquare Wave Problem With Micrologix
Hello all, this is my first post. I am using an AB Micrologix 1400 (1766-L32BXB Ser C FW 21). I was trying to generate a pulse train using the PTO instruction. I have modified PTOX funct. file. The...
View Article1734 IA4 confusion
Hello All, I will first state that I am very new to the world of PLC's. I do the control drawings where I work. I'm trying to figure out the 1734 Point IO, specifically the 1734-IA4. The manual states...
View ArticleCommunicating a omron nj101 with a SLC 5/04
Afternoon all, I am trying to transfer data from a nj101 omron plc to a slc 5/04 using rs232. I have a CJ1W-SCU22 serial module on the nj side connected to a 1746-BAS module on the slc side. I have...
View ArticleHi, trying to upload program from AB 1400, shows no response from processor...
Hi, after implement the following steps to configure my Allen Bradley 1400 programing logic controller, I tried uploading program from the PLC, a got a notification displaying (no respond from...
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Micrologix1200 - unable to go online
Hello, I programmed several Micrologix 1200 (all the same version ) with RSLogix500 (4.00.00.60) But the last one gives me an error message when trying to go online: Upload Failed! Decompiler ->...
View ArticleControlLogiX 5581E – Memory Dump and Binaries
I had two esoteric question I was curious if anyone might be able to help with. First, I am playing around with way to monitor the internals of a PLC and I was curious if anyone has any idea on why to...
View ArticleHaving issues going online after uploading from AB 1400
Hi, i uploaded program from my Allen Bradley 1400 PLC. when i tried to go online, a notification pops up showing program in processor has changed causing offline state do u want to upload, when i...
View ArticleI/O's Read/Write from Micro850
Hello, I'm using Allen Bradley Micro850 , 2080-LC50-24QWB. I wrote a program using Connected Component Workbench which reads certain indications and controlling contactors. My customer would like to...
View ArticleCleanup SFC chart
I have been given a task to insert a couple more steps into a RSLogix v.20 SFC routine somewhere right in the middle of a chart with about 60 or so steps. Just wondering if there is a quick way to...
View ArticleConnecting multiple RS-232 devices to the same PLC
Does anyone have any experience with sending multiple RS-232 devices to the same PLC? My current set up has 2 RS-232 devices sending raw ASCII data to a 2-port Comtrol DeviceMaster EIP-2202 where it...
View ArticleChanging AB 1756-L73 to L74, L75, etc.
Hello, I was wondering what the viability and ease of upgrading an AB processor to the next more "powerful" version. Is it a simple plug and play task, or does it require any significant modification...
View ArticlePanelview 1000 does not display correct input
Hello I would like to first let everyone know I am new to the world of troubleshooting or programming plc's . What we have is a SLC500 system that is connected to a Panelview 1000 HMI via the DH+...
View Articleindirect addressing of individual bits of a tag of datatype dint using PLC...
Hi All, I have a question on if its possible to do indirect addressing of individual bits of a tag of datatype dint in studio5000 ladder logic? I am writing a routine that should loop through the...
View ArticlebUs error on Yaskawa P1000 Ethernet VFD to Controllogix
Good Day, I am seeing intermittent bUs (communication bus) errors on 3 VFD's simultaneously. These are Yaskawa P1000's with CM092 Industrial Ethernet Cards. There are Stratix 5700 switches between...
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Connected Components Workbench
First time using Connected Components Workbench and am modifying an existing program, does anyone know why and how the original IO_EM_DI_ numbers have been changed and not just the alias'. When I...
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RSS to PDF Converstion Support Please
Hi Everyone: I'm Pablo Velazquez from CDMX-Mexico (new on this PLC forum) , I have trying to convert a .RSS file to PDF for a while with no succcess so far . I have no longer access to RSlogix SW....
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Simliar Mitsubishi functions in Allen Bradley
Hello, I would be really thankful if someone could help me . Recently, I start using Allen Bradley PLC and HMI. Before, I used most of . I have difficulty in seeking some similar Mitsubishi functions...
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