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  1. CPT instructions on a PLC-5/40

    I'm working to fix/improve the functioning of a program running on an a PLC5/40E.  I think high Scan Times are a big problem with this current program.  ((Backstory:  someone added some quasi motion control, and it sort of worked for a while.  Now that it's broken, the operators of this machine want it back. ))  I'll keep my question simple, PLC5's are new to me: There are 36 rungs with CPT instructions as the sole output, a third of these instruction are executed every scan.  I'm going to replace them with MOV instructions. My question is, is there any sneaky PLC5 reason to do a CPT instead of a MOV?  Is there a better way to do this? The CPT instructions that execute move integer values to a data file used by the HMI to control the coloration of touchscreen buttons.   Thank you for your time. PS: I'm new-ish to this forum, please feel free to let me know if my question was asked correctly or not.
  2. Can anyone explain to me what this would mean in a COP instruction? Source: #N[N187:4]:[N187:5] Dest: #N[N187:1]:0 Length: 20 I am doing a PLC5 conversion to rslogix5000 and some (most) of it has been a nightmare -.-

    I thought only PLC5's had EEPROM, but I was told MicroLogix PLC's also have an EEPROM that need to be burned to... What are all the PLC's that have EEPROM and require an EEPROM burn to prevent the program from being wiped in a power cycle?
  4. PLC5 to Controllogix Tricks?

    I have to replace a PLC5 with a new 1756-L73. There are (3) panels involved in system. The main panel controls (2) other panels remotely via each their own 1771-ASB module. Time is of the essence on this project so I am trying to find ways to reduce the required downtime needed to make the switch over. I am going with AB's new conversion method of using the existing swing arms assemblies into a mounting adapter then the c-logix rack on top of that. Question - Can I convert the (2) remote panels first or can they only be done once the main panel with the PLC has been converted over? The remotes only have input & output cards in them.
  5. .RSP to PDF

    Hello everybody. I am hoping somebody on here as RsLogix 5 and can open a project file and send me a pdf of the project report. I am replacing an old PLC5 with a new compactLogix PLC and don't have any documentation, or the software needed to open the old program.   Thanks! LOEB_2017_12_21.RSP
  6. Hello, I am currently converting a project from PLC5 to ControlLogix. I have migrated the program from Logix5 to Logix5000 and any Block Transfer Read, Block Transfer Write, or Message instructions were converted to a MSG in Logix5000. We are using the  AB PLC5 to ControlLogix 1756 Conversion Kit. All old racks and cards will be upgraded to ControlLogix racks and cards.I have a few questions:1. In the old system there was only 1 rack with a PLC5, the other 4 simply had I/O and communicated that back to the PLC5 over DH. These BTR and BTW instructions were only used for the analog data somehow, correct? If yes, can you elaborate on this a bit please.2. As I said earlier, there were also message instructions. My understanding is that message instructions are only needed when communicating between multiple PLCs. So if there was only one PLC5, why were message instructions being used?3. The upgraded system will only have 1 rack with a PLC (1756-L73) and will be communicating with the other 4 racks over ethernet. Since ethernet is being used, are these message instructions (BTR, BTW & message from the old program) even necessary anymore? Do they need to be replaced with a MOV or COP instruction?If more information is needed please let me know. I'm new to the industry and this is the first project I was put on so I'm definitely a noob here.
  7. RSP files

    Hi, I'm trying to open files with rsp format which i believe is for PLC5. Is there anybody who can help to print the file to pdf? WV.rsp
  8. PLC5 Subroutine Access

    Goodday everyone, I am relatively new to PLC5 so need some help I know in Control logix we access subroutines using JSR instruction in main routine but I am not sure in case of PLC5 I have written some instructions in LAD13 of PLC5 but coils dont update based on XIC input. LAD13 is currently empty. My rung is quite simple like this -| |----------------------------( )-- I checked LAD2 but there is no such thing as JSR for any routines. Program in LAD14 are running and if I write same rung in LAD14 it works Can anyone help. Looks like a stupid mistake to me though :)
  9. Hello and help. We have a customer which has an old machine and we are building a new version of it. Though it runs very similar, the original machine has a PLC5 and Panelview 1400e on it, our new build will have a compact logix (customer request version 20) and an Panelview Plus 7. They have sent me the old machine PLC logix and PLC5 file, and the Panelview 1400e, which I have attached. I cannot open these files, and our Toolkit for some reason will not let me download them (i'm assuming they arent supported by our toolkit or similar issue but either way the website is just sending me around in circles) I was wondering if anyone can get me a conversion, or even a PDF of the programs. Not sure how the Panelview 1400e can be converted but any help would be appreciated.   3017MELT.PVC 3017melt.rsp
  10. PLC 5 CAD DWG's

    Hello group, does anyone know where or have PLC5 CAD drawings?  The Rockwell site doesn't seem to have them anymore.  All I need is a processor, an input, output, AI, AO card, and a rack.  I am doing a drawing up and want to reflect the processor as more than a square. Thanks
  11. DF1 and PLC5 vs SLC500

    Hi all, Did a quick search in the forum to see if this has been asked before but couldn't see anything jumping out. I have what appears to be an issue in making a third party RTU using a DF1 enabled RS232 port talk to a PLC5. Background: The device talks seamlessly to a SLC500 with the CH0 set up as a standard DF1 Slave. I have replicated the setup like for like on the PLC5, I'm also happy that the cable between (the 25Way Sub) is as it should be. Problem is, no data exchanges are happening, none of my PLC values are registering. The COMM light on the PLC5 is flickering periodically (almost as if its trying to periodically service a request from the master) but then times out. The RTU is scanning one N31 and one N32 integer so really small. I recall (10 years or so ago) that when using a different telemetry device (Serck 2000M with PR27 DF1 card) I had to specifically set the PR27 to read PLC5 registers over SLC500 ones. This suggests that maybe there is an inherent difference between a PLC5 NRegister and a SLC500 NRegister?? I do not have the availability of setting my new RTU to scan PLC5 type registers so this may mean I am going back to the vendor. Before I do I was wondering if anyone here had come across this before? Any advice would be awesome Thanks Alex
  12. We are in the middle of converting a process from PLC5 control to ControlLogix. Currently we are using messaging between the PLC5 processor and the ControlLogix processor to allow both processors to control the process. This allows us to periodically replace old RIO rack (and eventually the PLC5 processor) with Flex I/O without interrupting the process. I recently read that PLC5 processor can be configured as an RIO adapter. Has anyone done this in a situation similar to that described above? I am trying to decide whether or not to attempt this. Right now we are in a rush trying to convert everything and it would allow us to take our time retrofitting the Flex I/O units, but we cannot afford to have our process experience unscheduled downtime. 
  13. Retrofitting old PLC5

    I have a customer that is wanting to upgrade his old PLC5 to something newer. I am still pretty new to the PLC world and was hoping to get some insight on possibly what might be the best fit. I still do not know a lot on this sytems. What I do know is that there are 5 input cards 2 output cards 1 analog input and 1 analog RTD card. Also the customer has a screen that uses rsview and he would still like to use that. Anyone got any suggestions on where I should start? Or even what other information I would need in order to find the perfect fit? 
  14. Is there an easy way to identify if analog inputs/outputs are used in RSLogix 5? Similar to the way digital input/output usage is shown with an “X” when you click on “Usage” in the input/output file.
  15. Revive a Faulted PLC5

    We just tried powering up a PLC5/80E that has sat unpowered for who knows how long.  The processor battery light and PROC light are on solid. Does anyone know any tricks for getting this processor running again? fyi, its not for production.  We are doing some migrations and wanted to use this to test some DH+ communications. thanks in advance, Joe Malter Grantek      
  16. Comunication HMI and PLC 5

    Hello every people, I am working in to project with one PV Plus 1000 (2711P-B10C4A1 with Logic Module 2711P-RP1A), one KF2 and PLC 5/15, I have finish logic of PV 1000 and PLC 5, but the communication not good , this is the configuration made:       NODOS PLC 5/15 have address nodo 11 KF2 have address nodo 60 PV Plus 1000 have address nodo 0 PINOUT CABLE  DB9 (PLC) -- DB15 (KF2) 1--5--7  --->   8--6--7 DB9 (PV 1000) -- DB25  (KF2) 2--5--3   -----------------> 2--7--3 I wait for your help   Thank you         
  17. How to reset Ethernet comms in PLC5

    Trying to programmatically reset the Ethernet port on a 5/20E.  It is talking successfully to a 3rd party PLC with their "message block".  However if the connection breaks (i.e. Ethernet cable disconnect, put one of the PLCs in stop mode, etc.), how can I reset the Ethernet port on the PLC5 via looking at a process status tag?  Right now the only way to get it to work again, is to both power cycle the PLC5 and stop and restart the message block in the 3rd party PLC.   Didn't get info from RA when I contacted their tech support.      
  18. CiP Path for PLC 5/20E

    Does anyone know the path if I need to use a 3rd party HMI with a PLC5?  RA tech support doesn't know and I couldn't find what I was looking for the RA KB or Lit   Library.  I know how to do the CiP path from the HMI to a CLX and it works.  The 3rd party HMI has an AB PLC5 and EiP selection for the driver/data server type and so that is EiP/PCCC I presume.  It also is asking for the CiP path for this PLC5 and EiP selection (as well as IP address).  Can anyone offer any fdbk?   
  19. How do you jump to non LAD2 in RSLogix 5? I know the PLC5 does Lad2 automatically but cant find any info on how to make sure other LADs (like LAD3, LAD4, etc.) run. Unsure if I am supposed to use a JSR in LAD 3 and jump to LAD3 and then put the SBR and RET instructions inside LAD3. Apologize for the stupid question as am used to do everything in RSLogix/Studio 5000.
  20. Have a PLC5 project with remote racks with digital and analog I/O. For test purposes have wired AO to AI and have set up the BTW and BTRs. Problem is I put a value in the N11 register for the particular AO (N11:66 - BTW) and it doesn't appear in the other N11 register for the particular AI it is wired to (N11:4 - BTR). The AI - N11:4 continues to read a value of "8259" in decimal/"2042" in BCD, despite any value I put in the AO N11 register. The range of the AO is 4-20 mA with a Raw min of -4095 and a Raw max of 4095 and the range of the corresponding AI is 1-5VDC/4-20 mA. If I remove the wiring arm of the AI, the N11 register will read "4135" decimal. Would appreciate any fdbk as need to get working as system for customer will not be migrated to newer RA or Siemens system til next year. Cant get support out of AB for questions as only have standard "tech connect" tech support contract and PLC5 requires you to have "Legacy automation" tech support added to your "tech connect" stnd contract.
  21. At my wits end. I've been challenged with setting up a Test Rack for education, and testing in our electrical shop. I've been attempting to setup a PLC5 1785-L40E processor, with a 1771-A4B Chassis; via serial connection to a Laptop. Seems simple enough? My result is, solid red Proc light. (I assume due to no memory, or EEPROM card installed, however it could be a major hardware fault) No COMM light at all, ever. Auto-Config in RsLinx fails. I've made my own cable according to AB's 1784-CP10 pinout. (null modem) I've tried my laptops serial port(COM1), and a USB to Serial adapter(set to COM4). I've lowered the baud on both ports through Device Manager to 2400. (Default for the processor) Confirmed the stop bit, parity, and Error correcting all match the default parameters. I have the chassis dip switches on the chassis set to all off except for 6 (EEPROM memory does not transfer to processor memory.) I have the processor dip switches set 1 2 3 4 5 6 7 so station number is 1. (I found a publication that states some processors don't recognize 0 as a viable address) U D D D D D D And finally yes I've confirmed that the RS-232C dip switches are set for default configuration. DDDUUDDUDU Also note I have 2 identical chassis', and processors, that I've been experimenting with, as well as a second PC with RSLinx installed. The only difference to note is that one of the processors the Ethernet Stat light periodically blinks red. Because I have two sets of hardware to play with, I find it hard to believe however possible; that both sets of equipment have failed with major hardware faults. This leads me to believe that I am fundamentally missing something here. A step I have missed, or I simply have my head shoved up somewhere... ...any ideas?
  22. I need help recovering from a message error 25 (x19) on a PLC5/80E. The documentation gives a description of "reply not received before user-specified timeout". This error has happened a few times after a power outage. I added a simple rung of resetting the error bit whenever set (see rung 14 in sample). This did not recover the MSG instruction in rung 13. I use rung 12 to capture the error code and the number of times it occurred. The Message Connect Timeout is 15 secs, the Message Reply Timeout is 3 secs, the Inactivity Timeout is 65,535 minutes. Question 1: Does anyone have more detail on an error code 25 (x19) on a PLC5E MSG? Question 2: What other logic is needed to automatically clear the error when it occurs. It is a "PLC2 Write" message. To make it easier, I don't care what the previous state was. Whenever the fault occurs, just clear it and go on. I included the setup of the message as well.
  23. Hello All, I want to read data from a Control Logix PLC, into a PLC5/60, using Ethernet and a MSG instruction in the PLC5. When verifying the MSG instruction in the PLC5, I get an error message. "Target Address in invalid". Once I figure out how to do this I need to replicate it in another PLC5. Scope is to read the status of 4 paint pumps controlled by the CLX. If any of the 4 stop, the PLC5 needs to know, because it is controlling the paint application equipment. Source data resides in a Control Logix 1756-L63. The tag is INT type, 4 elements long, and the name is PUMP_STS_B2. The IP address of the CLX is There are 2 ENBT cards, one in slot 1, and the other in slot 3. is slot 3. PLC2,5 / SLC Mapping has been created in the CLX. File=421 Name PUMP_STS_B1 and File=422 Name Pump_STS_B2. The file mappings represent a binary file created in each of the PLC5's B421:0~4 in Booth 1, and B422:0~4 in Booth 2. The PLC5/60 is Enhanced series E model using the Ethernet side card. The IP address of the PLC5 is I also created MG file types in each of the PLC5/60. MG420:0~19 in each processor. This was necessary to use the MSG instruction in the PLC5. I have searched the forums for examples of how to do this with no solid results. I am trying to follow the best practices of reading the data into my PLC so anyone who follows can tell where it is coming from. While the IP addresses are not closely related they should be able to communicate. I say this because all of our PC's are on the 4.2.6.XXX network on a sub net and we have no issue communicating with the IP address. Any help and advice would be greatly appreciated. Regards, Mike Carter
  24. Any one have an idea how to convert this from PLC5 to CLX Thanks
  25. Allen-Bradley Ethernet Driver for .NET

    Version 3.9.8


    .NET Component for use in Visual Studio.NET to create HMI/SCADA apps that communicate with A-B ControlLogix, CompactLogix, Micro800 Series, PLC5, SLC500, and MicroLogix PLCs via Ethernet.   Supports unsolicited messages Does not require OPC, RSLinx, or 3rd party drivers x86, x64, and Any CPU compatible Visual Studio.NET 2005, 2008, 2010, 2012, 2013, 2015, and 2017 compatible Most .NET targets are supported, including Web, Windows, console, and service apps. Can be configured programmatically or visually Visually design your entire communications configuration without writing a single line of code Extremely high performance - 5~10 mSec typical transaction time Supports ControlLogix family native tag names Supports reading and writing entire ControlLogix family UDTs and PDTs Supports block transfers of up to 250 words per transaction Tag database can be configured via code or visual designer Abstract base classes allow you to write generic code that works with all drivers Synchronous and asynchronous read/write methods Data change notifications Provides common user interface across all driver classes No limit on number of devices or data points Multi-threaded for high data throughput Includes extensive help system Example applications with VB and C# source code included. Easily connect office systems to factory floor. Runtime-free for qualified applications