Proper ways to reference Global Arrays in Expressions to avoid symbol table errors
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Jim, Use ?a Digital Formula for the expression. The console shows "-- match --" since arrays are zero based. Dave Sand ----- Original message ----- From: "Jim Moomaw - PDX via groups.io" <JMOOMAW_COM=[email protected]> Subject: [jmriusers] Proper ways to reference Global Arrays in Expressions to avoid symbol table errors Date: Thursday, February 20, 2025 11:05 PM I can't find an example online or in past GIO postings that shows how to format arrays for use in LogixNG expressions.? No matter how I format them or the index they throw symbol table errors.? I haven't tested maps but I would expect the same issues.? I have no issues with arrays in actions... those are simple.? I can view the arrays are correctly written using the log local vars function. ? These global objects are used between multiple cNGs;? my hope is to use the arrays directly in the cNGs vs. sharing global buffer vars. ? CtrlStatArray is 40 cell global array CtrlPointer is global integer var These are lifted from FOR and IFTHENELSE structures in the same cNG.? ? statements that work: ? ? ? ? ? ? ? ? ? ? E1? Local variable CtrlPointer is less than or equal "41" ? ? ? ? ? ? ? ? ? ! A1? Digital Formula: CtrlPointer++ ????????????????? ! A1? Digital Formula: CtrlStatArray[CtrlPointer] = "ACTIVE" ????????????????? ! A2? Digital Formula: CtrlXmitArray[CtrlPointer] = 1 ? ? statements that fail (symbol table error): ? ? ? ? ? ? ? ? ? ? E2? Local variable CtrlStatArray[CtrlPointer] is not equal to "END" ? ? ? ? ? ? ? ? ? ? E3? Local variable CtrlStatArray[0] is not equal to "END" ? -- Jim Moomaw Portland, OR - Willamette Model Railroad Club (WMRC) - NMRA, Pacific NW |