Arithmetic variables and examples. Viele Grüsse aus Velbert Conni TOP Antworten #17. When the macro program executes the line as above, the machine would enter the alarm condition ... the CRT will display Error #123 followed by the message ERROR ENCOUNTERED.
It offers the most flexibility and the greatest potential power of any of the G-Code Programming Techniques. In diesem Sinn. In many ways, Macro Programming is the highest level of G-code Programming. You get to see values for the last n variables whose value changed, and they’re sorted by variable #. You can change the value of any variable just by double clicking it too. ROUND(1.1) = 1.0. As with all computer programming languages, variables in FANUC’s custom macro—or any version of parametric programming—are storage registers for values. Good CNC programmers start to accumulate a library of useful g-code subprograms that are tested and ready to go the next time a similar task is at hand.1. For example, maybe you want to compare how long a program takes to run versus historical averages. It all sounds pretty arcane, doesn’t it?It’s really not. That’s useful, but computers and CNC controllers are capable of a lot more.Fanuc Macro B is by far the most common Macro Programming Dialect. Clearing the alarm condition is as normal. So, instead of:– The standard operators are add (“+”), subtract (“-“), multiply (“*” asterisk and not “x”!
Not all controllers support full Macro B, and there are variations supported by some non-Fanuc controllers.
Reading a system variable is okay, but don’t assign any values to them unless you know for sure what they do. List of Macro Variables. As a matter of fact, Always handy to be able to access the current position.
Here is a list of operators and functions for Fanuc and Mach3:When used in a macro function like IF, ROUND rounds down by slicing off the fractional decimal places.
For example:These variables fall into ranges that affect their meaning and how they can be used. Imagine being able to create your own custom canned cycles that can do almost anything. We can’t document every G-Code Dialect here, but the concepts offered in Macro B will be similar to what you see elsewhere, and therefore applicable to those cases with slightly different syntaxes and capabilities. You can time the program’s run time by accessing a timer and store that in a global variable for comparison.If it gets off the historical averages by too much, perhaps you want to use the Alarm options to tell the operator to summon their supervisor to come see what the problem is.#3901 is the number of machined parts completed so far, while #3902 is the target number of parts to make.G-code is very modal, so being able to access what modes are currently in effect can be very important when g-coding. You may want a variable defining the depth of the square pocket. You can even write #[#2], which is the variable whose identity is the value stored in variable #2. Macro Control commands. In this case, we have a pretty simple set:Now, put the debugger in Single Block by selecting the button just left of the Tortoise.As you step through a block at a time, the variables values are show in the box right below the backplot:Macro variable values are shown below the backplot…This little window shows all the modal activity, for example, we’re in G00 – Rapids mode. Macht bitte weiter so.
They can be assigned values, and when you refer to them, they give back the last value they were assigned.The syntax for a variable is the pound sign followed by a number up to however many digits your controller supports that identifies the variable. Some controls will tolerate “##2”, but most won’t, so get in the habit of using the square brackets.Debugging Macro Variables and Expressions with G-Wizard Editor…Just type your expressions on the left. Macro programming System variables. Almost anything is possible.Covering the whole of parameterized programming will involve three chapters in our tutorial. If you don’t have a Until now, all of our g-coding has been done without any recourse to variables or formulas. fanuc Macro Program Examples and templates
You can immediately see the current value of any variable, for example (anyone see the bug in the screen above? Lastly, we’ll deal with macro control structures.Not all controls support parameterized programming. Types of macro variables.
In fact, this is nearly always the case. You probably want to have variables that let you define the size of the square and the feeds and speeds so they may vary as the material changes. That’s a lot of variables, what do they all do?System Variables let you read and write the values of various critical things going on inside the CNC Control.