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Kiwi_man82 posted a topic in OmronHi Everyone. I have been tasked with changing out an older Flex Drive servo drive to a more modern Micro Flex drive in a machine that has an Omron CQM1H-CPU51 PLC. I'm having a few issues but hope that i can gain some clarity around at least one of the hurdles Im facing from here. Biggest issue for me at this moment is My work hasn't yet purchased a programming lead for this PLC (or even the bits required to make one myself) but i have a feeling the control for the Servo is done via motion control in the PLC. Question here is, if changing from one servo drive to another type, will the motion control code need to be updated to work with the new servo drive? I have very limited experience with motion control itself at this stage so I'm a bit lost when it comes to these sort of details. Regards Kiwi_man82
power flex 525 multi speed
ABlearner posted a topic in Allen Bradley / Rockwell AutomationHi guys! I need some help with a powerflex 525 multi speed configuring. I know I have to set the P046 parameter for 2 “DigIn TrmBlk” (source) and P047 parameter for 7 which means present frequency. This is the speed reference. I need 3 speed, so I will use Terminal 5 and Terminal 6. When both terminal is zero then 10 Hz, when terminal 5 is 1 but terminal 6 is 0 then 20 Hz and lastly if both terminal is 1 then it will be 30 Hz. I will adjust the speed with the parameters: A410, A411 and A412. Terminal 2 would be the forward and terminal 3 would be the reverse direction. I think these two can be two PLC digital output trough one-one relay. It will be counted the distance by an encoder. When it reach the target the run command will be released and the motor will be stopped with the decel time1. Also I will connect the S1 and S2 for safety. My question is do I have to connect other wires ? Also do I have to remove the jumper between terminal 11 and 1 ? Am I forget something ? Any comment would be highly appreciated. Thanks ahead.
ControlLogix and ControlNet unable to restart afer a fault
lost_in_space posted a topic in Allen Bradley / Rockwell AutomationHi, 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?
Reading current with Delta DVP-12SE
Daine posted a topic in Other PLCsGood day all. I have an application which is running an Allen-Bradley SMC-Flex and the client would like to get the monitor the current of the soft-starter via an HMI connected to a Delta DVP-12SE. Is the SMC able to output a current and with what communications medium would I use? Thanks.
Devicenet nodes falls, 1747sdn failed
msolorzano posted a topic in Allen Bradley / Rockwell AutomationI have a devicenet network with slc 05 module 1747 sdn and two flex io systems with 1794adn adapters. After a thunderstorm where lightning struck us near the facility The 1747sdn module had an indicator LED flashing in red and error code 91. I connected to the network through 1784 u2dn to be able to configure from RSnetworks, but the program only saw the Flex io, not the 1747sdn module. According to the manual, a resistance of 60 ohms must be measured between the blue and white wire, when measuring with the instrument it gave me 120 ohms, which seems to indicate that a resistance was missing at one of the ends, so I placed a resistance of 120 ohms in the end of the devicenet module, to get the 60 recommended measure. The module was kept with an error code 91 So I decided to change it for another card, when changing the card the module indicator LED was no longer in red but it was impossible for me to communicate with the card through Rsnetworx. The other two nodes of the devicenet network had to be disconnected so that I could see the module in the RS networks. I loaded the configuration of a similar network previously saved in the computer, but when connecting the other nodes of the network to load the scan list the network fell and I could not continue with the configuration of the module and now i can not see any node from Rsnetworx.
Flex I/O Rack
AkumaShi posted a topic in Allen Bradley / Rockwell AutomationI am in the middle of doing a retrofit for a old PLC5 and i decided to upgrade it to a Control Logix. With how much I/O I was needing the price of the system was going to be very pricey. So I decided to use my main rack as a control logix and use Flex I/O for my remote racks. I have never put together a Flex I/O rack so I am unsure of what I need for this rack other than my I/O modules and a communication module. Could someone give me a list of what is needed for these systems?
Flex i/o outputs shorting
stanwich posted a topic in Allen Bradley / Rockwell AutomationHello everyone! Im hoping someone could shed some light on a issue im having. Im having issues with a 1794 ow8 output module. This module is used to control 8 hydraulic cylinders that push biomass into a burner. The overall problem is that roughly once every couple months a output will short in the on state and force a coil on, activating the vavle full time and burning out the coil. Each seperate output is fused on the module with a 2a fuse and each modules incoming power is also fused at 2a. The output that is shorted did not blow its fuse. The 'ON' light is not activated but 120v still runs through it. Since each valve has 2 coils and one is forced 'on' the main fuse will blow once the second half of the valve is activated because the valve is fighting itself. It is not just this one module, this happens on other modules that serve the same funtion as well. This is a contractor installed system but they have been no help so im left trying to figure it out. Could my seperate inputs be fused too high at 2a for this type of card. These are parker valves 120v 60hz with a max 1500psi pushing wet hog/chips. Any suggestions would be really appreciated!
Getting UDT to work with physical IO
electric101 posted a topic in Allen Bradley / Rockwell AutomationGreetings, I'm here in my home lab trying to acquire a working knowledge of UDT's. I've had to work with them in the past in large existing programs and they were a pain to track down and find out what IO they were really controlling. I have a decent understanding of what they are and I've created several to play with here using my softlogix processor and a digital flex IO rack. My issue starts when i'm trying connect my UDT's to the physical IO. it looks like I cant use a simple move instruction (which would be way too easy and exactly what I need) I have a flex IO 8 point output. Local:1:O.Data I have a UDT consisting of (see attachment) Valve001 Valve001.Out Valve001.Out.OPEN Valve001.Out.CLOSE Valve001.In Valve001.In.OPEN Valve001.In.CLOSED I have a copy instruction set to copy Valve001 to Local:1:O.Data Length 2 that allows the Out.Open and Out.Close UDT's to control bits 0 and 1 of the 8 bit output . .... great. Now I have another UDT setup to control lighting... Door Door.Out.OPEN Door.Out.CLOSE I want to control bits 2 and 3 I make another copy instruction in a line before the original copy instruction that states Copy Door to Local:1:O.Data Length 4 but i'm really just fighting for the same 2 bits that the valve controls.... how can I control bits 2 and 3 for the door/lighting logic using these UDT's? and that's not yet getting into having physical inputs moved/copied to the UDT input bits. thanks!!
Rockwell ControlLogix 5000 and SMC Flex
dadof3and3 posted a topic in Allen Bradley / Rockwell AutomationGentleman… Does Rockwell have any simulation PLC code that mimics an SMC-Flex soft starter? Since we are using those (as well as the E3+ and E300) I would like to develop a model environment for starting of several drives. In a specific case, we may have 3 or 4 drives in a pool of drives in which only a subset must be running at any one time. Development of ladder logic for starting and maintaining those drives running while considering various fault conditions and startup issues would be very helpful in our environment. I would like to be consistent among various areas within our plant that we incorporate pools of drives, from 4 to 2. Having the ability to test in the lab would be very beneficial. Thank you, David
Developing a block moving system with Flex i/o and control logix
ConfusedStudent2016 posted a topic in Allen Bradley / Rockwell AutomationHello, I am new to this forum and I am looking for some help. I have to create a block mover system using the controllogix , I know that I must use a SQO as I have done this process without a Flex I/O on a SLC 500 before. Currently I am getting a error while dealing with the array can anyone show me an example of a SQO in 5000? Thanks
IN NEED OF RSLOGIX 5000 SAMPLE CODE
electric101 posted a topic in Allen Bradley / Rockwell AutomationGreetings, I'm ok with RSLOGX 500 but am an absolute beginer with RSLOGIX 5000 and was wondering if anyone had any simple sample code just to study. I would love something using analog input and or analog output. thanks in advance.
Addressing Help with 1794-IF2XOF2I over Devicenet in RSLOGIX 5000
electric101 posted a topic in Allen Bradley / Rockwell AutomationFirst of all im using a softlogix 5860 processor connected via 1784 PCIDS card to the 1794 devicenet adapter. my first module is a 16 bit DC input followed by a 16 bit output and finally my 2channel input/ 2 channel output. I can write code in 5000 for the digital IO's just fine and i have the .dnt file setup correctly with all lights green and i can see voltage change from rsnetworks when i monitor the input from the 1794 ADN (setup for 0-5v). From the reading i've done, i know i have to use block transfer msg and there is a sample file included with the version of rslogix that i have but its setup with different controllers and adapters. I've read anything i can get my hands on online from rockwell but the docs on these adapters only show the setup example using the ethernet IP version. in the ethernet IP version you can right click on the 1794 IP adapter in rslogix 5000 and add the module.... you cannot do this using the devicenet adapter. I can include my basic logix file but theres not much to it since I have no idea where to go from here. If anyone has ANY experience with this i would be forever greatful thanks in advance.ANALOG.zip
Analog input/output Flex IO devicenet I/O parameters issues
electric101 posted a topic in Allen Bradley / Rockwell AutomationGreetings, I'm about to begin a new job taking on a major operation drive by controllogix processors and tons of flex I/O modules.... its a big plant and a huge job to take on, and while i have alot of other automation experience and programing experience in other types of controllers i'm just learning PLC programing. The Good News is i have RSLOGIX 500 with a micrologix 1500 and RSLOGIX 5000 with a softlogix 5800 controller, a 1784 PCIDS devicenet scanner and a 1794 adapter with 16bit dc input a 16bit dc output and a 1794-IF2XOF2I 2 channel output 2 channel input to learn with. I have set the devicenet system up without the analog module, figured out rsnetworks enough to be able to write simple code enough to toggle outputs using the inputs.... the problem starts when i add the analog module. If i let rsnetworks scan on its own it finds the analog module but sets the I/O summary as 4input words (2 for the adapter and 2 for the digital input module) and 4 output words (2 for the digital output module and 2 for the analog module) however, it will not allow you to browse down to the bit level in the IO summary. IF however i go into the I/O summary of the 1794 and hit the defaults button it sets the input words to 5 (I/O only) and output words to 3(I/O only) If i download this to both the 1794 and the 1784 scanner my IO light goes red on the adapter and i get the errors listed in the log at the bottom of one of the screenshots im including. Anyone have any experience with this? anyone know what I should set the Input word / output word size to or what else i could be doing wrong? thanks so much in advance.