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  1. Hello, I'm new to setting up my controllers and communication between devices.  We wanted to see if using Modbus TCP/IP to communicate to a load bank was the right path for us.  I was able to configure my Micrologix 1400 controller Channel 1 for Modbus and set the data files.  I set up a read holding register 03 message, two write single register 06 messages and one write multiple registers 16.  I was able to read the data from the load bank, but I was unable to send any write commands.  I didn't get any errors in the messages.  I was able to send write commands through my pc to the load bank and it responded properly.  So I was thinking I must of missed something in my set up in the PLC. I'm attaching the PLC Program and the command set from the manufacturer.  Any help would be greatly appreciated. BENCH_TEST.RSS ALx Series Input Command.pdf ALx Series PWR Command Page.pdf ALx Series Setpoint Command.pdf
  2. Hi, So I have a problem, that BootP DHCP server doesn't find my 1734 AENTR series B and so I can't assign IP address to it. Been trying many things. Any advice? I'm new to AB and I guess it may be a really easy thing but so far I didn't find a solution. 
  3. Hi All, Has anyone had the experience of connecting two Fernhill Scada units using an OPC UA?  I am intending to use Fernhill Scada on my Master PLC to read tags from my Slave PLC's Fernhill Scada. Then, displaying local tags (Master PLC, "Fernhill SCADA Unit 1") and read/scanned tags from the Slave PLC, "Fernhill SCADA Unit 2". In the meantime, I am trying to use both of my Fernhill SCADA units interact with each other (one unit to read tags from the other unit) by using Internal Digital Tag on the Fernhill SCADAs.  Any help would be appreciated.
  4. Hello all,    I have 3 kinetix 5500 drives connected in series but some how the 3rd drive lost power. all the fuses in the cabinet look good. nothing else is tripped either.    any advice is appreciated.  thank you   
  5. Hey guys,   I am looking to query a database through FactoryTalk SE.  I will be scanning packages, and using that bar code to find a lane assignment from the database.     My question has to do with where the VB script will reside in the FactoryTalke SE program.  I want this script to run at all times.  I see that each screen has a "VBA Code" but I am assuming that these will only run when the screen is visible.   Where does this have to be stored in order to run all the time?   Thanks In Advance!
  6. Hello all,  There are two pressure gauges in a line with a flow of water. The flow is controlled by the pumps which is controlled by the PID whose control variable is pressure gague -2 . In ideal condition the pressure gauge -2 remains at 55 psi and pressure gauge -1 stays at 82 PSI. But in the line if someone opens a manual valve then pressure gauge - 1 reads 100 psi because the pump is running as per pressure gauge 2 . Is is possible to clamp the PID so that pressure gauge 1 remains at 82 psi.    FYI: Pressure gauge 1 is right after the pumps and pressure gauge 2 is at the end of the line. 
  7. PWTech is a rapidly growing company specializing in wastewater treatment equipment. We are currently hiring for a Controls Engineer. This is a full time position with some travel required. Requirements: 3-5 years experience Proficient with Allen Bradley MicroLogix, CompactLogix PLCs, PanelView HMIs Proficient with ladder logic programming Proficient with basic electrical theory, control systems and electronics Familiarity with NEC, with special focus and understanding of articles 409, 430 A high level of proficiency in written/spoken English Familiarity with Unitronics PLC/HMI is desired but not required Duties will include: Producing control panel submittal and as-built layout drawings, components lists, and line diagrams Selection and integration of sensors, motors, control systems and other mechanical and electrical equipment. Coordination with internal and external project engineers to resolve electrical and control questions and issues Programming, modifying and troubleshooting Allen Bradley and Unitronics PLCs and HMIs Providing assistance and remote support to field personnel Maintaining inventory of long lead items for warranty and project purposes. Location: Rosedale, MD (outside Baltimore) Technologies: 50% Allen Bradley 50% Unitronics. Salary: 95k-105 depending on experience. Higher if you have >10 yrs experience. Contact: Kreal@pwtech.us
  8. Hello all,  I have a temperature sensor with a reading range of 10F to 212 . The input card I am using is an Allen Bradley 1734 IE8C 8 Channel Analog current input. The current input values are 4-20 mA. Currently I have my raw low at 4000 and raw high at 20000. Can anyone explain how do we go about selection of this values ? I found these values in the configuration tag of the input card properties.  Thank You 
  9. Hello, We are looking for PLC and Robot programmers for a number of open positions across the US and in Mexico.  These will all be 1099 contracts and vary in length from months to years (if you want to stay).  The majority of the work will be in the automotive industry; assembly, welding, material handling, etc. Please send resume, approx availability and requested payment compensation (in US dollars per hour) to Career@DiPonioGroup.com Thank you so much for your interest! Tony
  10. Hi all, I have an application where two buttons are created: End Batch: "Momentary Push Button" that modifies the value of a tag. Print Report: "Display Print Button" that generates PDF with a screenshot of the current screen. I would like to mix both buttons into one single button that does this functionality at once. I have been reviewing forums and it seems that the only way to do that would be by using VBA code but I believe that this is not available on FactoryTalk View ME but only on SE. Would anyone know a way of printing a PDF screenshot + modifying a tag at the same time and with a single button on FactoryTalk View ME? Thank you!
  11. Good day,  I retreived the event log from 2x RM's today, I found on the one RM that there has been more than 700 million events. Apart from switchover events, there following event shows up a lot: (C2) Bridge Connection Deleted       Starts/Stops   Byte 1 (0xFF) : Byte 2 (0xFF) : Byte 3 (0xF2) : Byte 4 (0x13) : Byte 5 (0x0) : Byte 6 (0x0) :  Our system: 1756-RM2 1756-L75 1756-CN2R 1756-EN2TR 1756-EN2TR 1756-EN2TR 1756-EN2TR The CN2R's are connected to 12x 1771-ACN15 and 2x 1756-CN2R in remote racks, which is also set up to be the keepers. The EN2TR's are connected to their respective ETAPs/EN2TR's in ring topology.   We have experienced some issues when switching over. Hope someone can tell me what that message means regarding the Bridge Connection.    
  12. Hi everyone... I'm not a AB expert.. I'm using L74 controller, Rm2 redenduncy module,  EN2TR and EN2T module (on each chassis) on my control logix project and having 3 remote IO's rack on ring topology... I have use EN2TR for ring topology and EN2T for scada communication. The problem is my controllers are not synchronising on fibre optics... I have to connect both EN2T modules with one an other for controller's synchronisation. They are syncing over ethernet but not over optical... your help is appreciated    Thanks in advance
  13. Good day everyone, First post here so hopefully I'm not violating community guidelines in anyway. I've got a system that has some 50 odd Micrologix 1100 and 1400 in use and I'm currently working on setting up an auto timesync for all of them using just 1 of the PLCs that will be my master time PLC. So far I've put together the logic for all the message instructions with the corresponding IP of the slave devices. I'm running. Into an issue with not being able to terminate/break the message connection on a PLC that I have already synced. Is this even possible to do on the ML1100. Once I get to 16-17 messages DN it starts to ER and will not complete any further messages. What I have is a message instruction ladder with a timed trigger to activate a MSG and write the RTC data then time down and connect and write to the next and so on. When it triggers the message instruction of one PLC it also fires an OTE to trigger the BK of the previous message instruction. However it doesn't seem to be actually cutting the message connection and holds it persistent until a power cycle/download event.
  14. Hi,  We have 2 x 1756-L71 Processors joined together with a pair of 1756-RM2/A redundancy modules. The rack also has 1756-EN2T and 1756-CN2R modules.    I was called to the site after a power outage and found that the link between the 2 CPUs had failed with one displaying no program and the link modules with error lights. The ControlNet cards also had red lights on both channels and all of the FlexIO devices were red Xed in RSLinx. I went down the path of trying to get the CPUs up, and running but this was a red herring as I was informed that if the CPU's get out of Sync and have any faults on the cards the secondary one will lose its project. The ControlNet cards were giving a no Active Keeper fault? So we went down the path of the ControlNet cards, I initially thought that it was that the cards had lost their configuration files but we isolated the coax network to just the 2 cards, and the CP's and ControlNet cards came back up online. We joined the network back onto the ControlNet cards and found a faulty 1794-ACNR15/CFlexIO module. Once we replaced this the other devices (48 devices on the network) were not being discovered on the network. We went around and power cycled the IO units and then they started to Auto discover and the site came back up - Note CPUs were in Program mode at the time and I flicked them to Run and the site came back online. Does anyone have any information on why they needed to be power cycled and is there likely to be an underlying issue other than the single failed module pulling the network down?
  15. I have some files from an SLC 150 that I need to recover the logic from. The problem is that I do not have the .150 files(to use PCIS.EXE). the files I have are .SLR,.SLT,.SLX,.SLC,.SLD.SLF,.SLP file types. From my research, these files are meant to work with a program called  SLC Logistics. I need to get a copy of this program if someone can send it to me. I am interested with anyone who knows how to pull the PLC logic from these file types.   I have used the utility SLC2DB to convert the rung,bit, and page files. This helped but it basically just got me the documentation. I still need to get the logic. you can see my other post here https://forums.mrplc.com/index.php?/topic/41174-slc-150-program-read-need-pcisexe/
  16. Hello, I'm using View Designer 7.01 and experience anomalies in project explorer. When I move mouse cursor over project explorer, highlighted lines render with anomalies. I have tried to create new project with different HMI and  and versions, but it didn't help. (picture in attachment) Anybody experience this problem before? Thanks in advance! Scotty
  17. Hello Guys, I am using a nx102-9000 CPU and trying to communicate explicitly to a Telsonic Mag Generator. I have done this on a CJ2M & an Allen Bradley Processor successfully before but am struggling with sysmac. I will attach some screen shots of the AB message instruction because it is much more simple then the CJ2M (required pretty much a full function block made). If anyone wants to see the CJ2M block let me know. I am working right from the sysmac manual using the CIP OPEN, READ, SEND, & CLOSE. Once it is working I will write as well.  I am getting stuck right on the first part "CIP OPEN" I am using a route of '02\10.203.21.40' I am unsure what the 02\ means. I am just copying it from the example. The IP Is correct. Below is the picture of my 1C05 Error. Which in the manual is confusing because they have a 1C error and an 05 error separately.  Another question (once i can open a connection) is in the CIPRead the 'srcdat' I am not really sure what this is? Everything i've used before is an instance number, class, and attribute number (used in the CIPSend Logic From Allen Bradley MSG Instruction & Current Sysmac logic shown in pictures as well. Please let me know if you have any suggestions or need any additional information. Thanks, Kevin
  18.   Mail me for Help if anyone is stuck during coding and settings.
  19. Hello all, I have a L82 having ethernet connection with 3 HAAS CNCs and other ethernet device. The ethernet card EN2T is at 19% capacity. But my Controller MESSAGE CORE is at 100%. How do it get it down so that we can have faster and better communication ?    I have attached the picture of the Tasks:   
  20. NJT is looking to purchase industrial electronics in all conditions. Have a look at the website for more information: https://njtautomation.com/
  21. Hello, On our DCS we have a button that will open an RDP connection to our PLC server and open the .mer file connecting the DCS to the PanelView HMI. This is supposed to be used for troubleshooting purposes only, but that is not the case. Is there a way to prevent operators from operating the HMI through the RDP while still allowing them to have read only access?   Thanks, Michael
  22. So we have a PLC project coming up and its our first one and understand and can execute most of the sequence without issue.  The part that is getting me is how to handle the following efficiently using studio 5000 and panel view.   AHU has to be able to run test cycles User selectable up to 250 steps in a test cycle User selectable temperature setpoint for each step User selectable humidity setpoint for each step User selectable time duration for each step   I thought about using arrays but as i understand the allen-bradley plcs to change the array size you have to go offline and then back online so you could not change it dynamically.  Was considering doind this with reading the dataset from an excel document the user would edit. The other option for me is to have a static arrays size and then based on the number of steps the user select have the routine only execute x ammount of steps, which is done easy enough.  Big thing is after the code portion is lined out is there a way to dynamically change the hmi graphics to only display certain steps for the user to edit, maybe by using an array of bits that are on and off for visibility and then having a GUI object be shown or hidden based on that bit?
  23. I have a 2 CompactLogix PLCs running right now, communicating CIP Safety and Standard data over Ethernet I/P.  For reasons I can't explain right now, the IP address of the second one HAS TO change semi-randomly (the 1st PLC is static).  Setting the 2nd PLC's IP to static or assigning it a static DHCP address is the obvious solution, but for the purpose of this question, that cannot be done. Is there a way to programmatically change its IP address on the 1st PLC's program?  (There is an HMI attached to the 1st PLC and adding a screen to enter in the new address would be trivial.)  The only bit I'm still missing is how do I change the IP address on the module in the 1st PLC so that it's pointed at the right IP address of the 2nd one when it changes.    I found instructions on how to use msg instructions, but that hasn't worked yet.  Any help would be appreciated. Thanks!
  24. So, I have thought about creating my own Business for the last few years. With this business I would go shop to shop/factory to factory teaching anywhere from Basic PLC programming to HMI design and integrations. I love to share any bit of my Knowledge/experience with anyone and I have learned this more when at my first engineering job they had me train several guys on how to start up Servo Motor jobs with PLC and HMI's. I really enjoyed helping others learn and get over the hump of intimidation and lack of experience with electronics and such. I have had a lot of different experience from being an Electrician for 5 years to Engineering 10+ years now- (Design, Software, Startups, Service work, Installs, and Management) I then started a career of being a PLC Instructor (part-time for 1 year now) for adults and this too help me with my idea of starting my business. At my instructing school we would get a variety of people anywhere from fresh out of High School to experienced Maintenance guys that want to specialize in PLC and HMI's.  With all of this being said, does anyone think there would be a great amount of need for someone to come your work place and teach Allen Bradley, Omron, and Mitsubishi PLC and HMI and maybe one day down the road Servo Motors and logic for them too? I think that more one on one with a couple trainer lab stations, I could really help not only workers advance themselves but also companies benefit both? I have gone to training for my previous employers, sometimes traveling far away for a week at a time and costing my employer a lot of money where my rate would be much less and on-site of the customer/trainee's. Starting out I have bought several used pieces of PLC's, Input Cards, Output Cards, (Only Allen Bradley for now). I have also bought cases to make my training units more safe and portable. Looking at creating a business name and logo as well as possibly creating a (LLC). It has been a slow but steady process though. Feel free to add anything or comment anything to this with ideas.   Thanks!
  25. Hello I am trying to get for HAAS CNC variables eeg. 10800,10801 etc into the PLC. Does anyone know of any ADD ON instructions ?    Thank You