Search the Community

Showing results for tags 'Real Variables'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Found 32 results

  1. Alpha2 Help?

    Hi Although I have used programming languages like basic and C for many years, I have recently tried to get to grips with programming (with the software (not direct)) the Alpha2 I have to admit that I am struggling! I have made a little progress since I worked out that you have to build almost everything at a very low level. But I still can not work out how you make variables that can be used in the program? For example : If condition A is true X = 10; But if condition A is false then X = 2. I have tried using the bit inputs on the math FBs to enable/disable values of X, but although this will initially alter the value , sending a 0 bit merely freezes the calculation and the value does not change. It seems like it should be such a simple thing to do? Is there a fundamental concept I am missing? Any help would be greatly appreciated
  2. Hello all, I was asked to check if there is a PID real - time software which automatically calculates PID loops parameters and update the PLC registers or HMI ( by OPC server etc.) when the process is working and "breathing". REAL-TIME. Not PID simulator or PID tuner based on measured data, but a software that will calculate and update the PID parameters in real time while maintaning several PID loops simultaneously. Are there any suggestions? Thank you, Olesia
  3. ML1500 RTC

      Dear, I need some help with an application in ml1500 with the RTC . I need an exit is enabled by days of the week . I´m programming in Rslogix500. Program follows the image. If possible help me. Thanks Daniel.
  4. Have looked on this forum and found NO hint of a solution. I hope someone can provide me with a starting point. I have a Allen Bradley Micro830 & Connected Component Workbench that I use to SMS text message out the value of an Analog sensor. The value is a real number data type so it holds a number like this 123.32659+e. All I want to do is to "Truncate" so that the value ends up being like this 123.32 this would then be what sms receiver would see as the value. Thanks
  5. In my present project, I have to interface an energy meter that has its kWh count in 64 bit Double format. Now that Vijeo citect hasn't a facility to create tags of the "double' type I am looking for a work-around to this problem. Thanks for any help/advise in this matter
  6. Hi friends, Can anybody tell me when to use a local-Static variable and when to use a Local Temp variable whilst creating a Function-Block in S7 -1500 using TIA portal. Thanks for looking in. Best wishes.
  7. I am currently trying to get my program to take distance traveled per pulse, which is based off of the diameter, and convert it into IPM. I am using RS Logic 5000 software. If anyone could help me get over this hump I would really appreciate it!