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Showing results for tags 'move'.
Found 8 results
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Hello, I've got a problem with a Motion control sequence. In my code i would like to perform operation like: When package move on optice sensor position it stopping and perform MC_Move operation. It's moving for X lenght, but sometimes it stop a little bit after sensor and i would like to stop MC_Move instruction faster - directly when state on sensor goes down. Which instruction use and how to code it to make it good. I already made something like. **pseudocode** seq=1: if sensor then MC_MOVE_instruction_execute=True; seq=2 seq=2: f_trig(sensor) If MC_MOVE_instruction_done or MC_STOP_instruction_done then MC_MOVE_instruction_execute=False; seq=3 seq3: REST OF THE CODE SR_INSTRUCTION(S=F_TRIG.q, R=MC_STOP_instruction_done OR SEQ=3) MC_STOP_INSTRUCTION_EXECUTE=SR_INSTRUCTION.Q Am i doing it right or there is another way? Thanks in advance.
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Hi, I am trying to do a merge move on 1S Servo. The condition are as follows: Task: Move 2 in(absolute value) and then Move back to 1 in (absolute value). I have to do this move 10 times in a row. The application is material leveling after dumping in the mold. The only question i have is if I use just MC_MoveAbsolute command, the only buffer mode for transition available is velocity. Is there a way i can do it with position. I dont want to stop when I can go from 1 to 2 and 2 to 1 again and again. Its time consuming. But rather a nice oscillation motion without stopping to mimic leveling. Can anybody please help me out with this problem. Thanks
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Hi Guys! I have a problem with Motion axis move (MAM) command. There is an Allen bradley servo motor what is working well. But I need to add a new program section, wich is in a specified moment, the axis should move a certain distance. I think I need to use the mam command, just I dont know how can I configure the motion control part. I need to make a new tag ? or what ? I need to use a user define ? PLS help me.
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We have this logic (on a CP1E) the desired outcome is as follows: When a bad part is detected, force the operator to index the machine 6 times, using a holding register to prevent a power cycle from resetting the count. once 6 cycles are recorded output that the bad parts are removed AND reset the count to zero. What has actually happened so far: the count has gone to 6 and not reset. I have used CX Programmer to set the H0 value to zero but the compare still says it's equal (to 6) I have read everything i can get my hands on regarding holding registers and compare functions and i can't see what is wrong. I have no formal training on this so i'm sure it's something simple. can anyone point me in the right direction? Thanks guys
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Getting UDT to work with physical IO
electric101 posted a topic in Allen Bradley / Rockwell Automation
Greetings, 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[0] 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[0] 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[0] 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!! -
Hi: in Omron there is a command BSET which can be used to set value from DXXXX to DXXXXn. Example BSET #0 D2000 D30000 What is the similar command in Mitsubishi FX3U structure Ladder? thks
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Hi guys! As the title explains, i wanna move a value to 210 -> 220... is there a function for that or do i have to make a MOV for every single dataregistry (look at picture)? Its an mitsubishi FX3GE PLC programmed in GxWorks2. Br, Jim
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I am very new to PLC's, I work in a power plant and we have an ABB DCS. We have some vendors that use PLC's and they try to make them work with our system. Currently I am working on a project were I am trying to add 8 analog outputs to the PLC. I am working with two 1756-L71 controllers (redundant) and the rev for the program that was written 20.01. Basically I have 8 analog inputs that I want to bring to the spare analog outputs that I have. I want to see these inputs in our DCS. I wrote simple logic that at the end of the rung has a move block moving the source which is the input and taking it to the destination which I made an alias tag for the output channel that would correspond. Problem is I can see the source number moving, but the destination number stays at 0. I can type a number into the destination and it will work. I can see my 4-20 signal I am sending out in the DCS. Everything before the move function is true, I have and open contact, and a closed contact and they both are green. This is happening on all eight of my outputs that I am working on. Please help I have learned a lot from this experience but I cannot figure out what has me stuck this time.
