ritzspeed

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Posts posted by ritzspeed


  1. Hello. I've learnt PLC programming in RSLogix 5000 for Control Logix PLC's. Now I'm working on a project which is in development phase and requires automation, it's my first job and first project. My employer has bought a Mitsubishi PLC named Messung Nextgenie 1000, which can be programmed only from Codesys, but what I found is that I cannot find instructions like move logic, compare, compute-math, Program Control, Special (PID), which are all necessary for even the simplest of the program for an automated process. I can not ask my employer to buy Allen Bradley PLC and Rockwell sotfware packages, and accesories as they are all very costly and my company is still a startup. So I just need a guidance in this concern, how can I migrate from AB to Mitsubishi. basically, RSLogix to Codesys for now.

  2. I want to build a logic in ladder diagram in RSLogix 5000 v16/v17 where an analog output is intially set to 10%. Two analog inputs are continuously being read and being compared to some respective threshold values, and if any of these two inputs are less than their respective threshold values, the PLC has to increment the analog output by 2% every 5 seconds. The effect of the analog output increment is reflected on this two analog inputs. If both the inputs reached their respective threshold values, turn on an LED lamp. Let me make it simple to understand: Let A = analog input1 B = analog input 2, C = analog output initially C = 10 after 5 seconds if A < 22 OR B < 36, then increment C by 2% if A < 22, B = 36, then increment C by 2% if A = 22, B < 36, then increment C by 2% and if A = 22 or greater and B = 36 or greater, turn on LED lamp do this (increase C by 2 %) every 5 seconds until both the inputs are equal or greater than their threshold values, i.e. A = 22, B = 36. The analog output must be set at increased value until next increment is given I've tried this using timer, timer done bit, timing bit, enable bit all, but did not success. The PLC doesn't increment after 1st increment, my logic is faulty. Any help would be appreciated. Thanks :)

  3. I want to test my logic I developed in RSLogix 5000, I cannot buy RSLogix 5000 Emulate. My rogram has a number of analog as well as digital inputs and outputs with timers, counters, move, compare and PID instructions. I dont know what to do. Please someone help me with some kind of softwae which can simulate or emulate RSLogix 5000 program. Thanks :(

  4. Hello!! I am a beginner in PLC and Automation. I have built a ladder logic program in RSLogix 5000, the controller I selected is 1756 L62 ControlLogix 5562. I want to test my logic. I have installed RSLinx Classic Lite already. Can I use RSLogix Emulate 500 (free downloadable from Rockwell Automations) for testing my ladder logic?