Table of Contents - TG Drives

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Compiler Symbols
PL2 NATIVE POSITION LANGUAGE
Reg, XReg, or instruction-dependent operators. Use
parentheses to force the compiler to parse the expression if
the expression is a const_expr.Format:
[Let] Reg = Reg let_operator SConst
[Let] XReg = XReg let_operator SConst
Example:
[Let] MyRegister = MyRegister * MyValue + 3
MyValue + 3 is a const_expr and is evaluated during
compilation.
indirect_reg Designates an internal 32-bit register and is accessed as
R(Rnnn).
COMPILER SYMBOLS
A symbol can contain the letters “A” to “Z” and “a” to “z”, the underscore ’_’
character, and digits “0” to “9”. With the following restrictions:
• The first character must be a letter or an underscore.
• By default, the compiler recognizes only the first 64 characters as significant.
VSymbol Alias for a value. A VSymbol can be used as an alias for const
or const_expr. VSymbols are constant values and are defined
using .DEFINE directives.
Example:
.DEFINE ENDPOS = 1000
.DEFINE STAPOS = ENDPOS + 2000
RSymbol Alias for a register. RSymbols that can be used as an alias for
Reg. Rsymbols are constant values and are defined using
.DEFINE directives.
Example:
.DEFINE REG12 = R12
.DEFINE MAXSPD = REG12
XSymbol Alias for an extended register. An XSymbol can be used as an
alias for XReg. XSymbols are constant values and are
defined using .DEFINE directives.
Example:
.DEFINE MPOLES = Motor.Poles
.DEFINE MPOL = MPOLES
ISymbol Alias for an indirect register address. An ISymbol can be used
as an alias for an indirect_reg. ISymbols are constant values
are defined using .DEFINE directives.
Example:
.DEFINE IDXREG = R(R40)
.DEFINE IDX = IDXREG
.DEFINE IDXFOO = R(REG12)
ISymbol Alias for an indirect register address. An ISymbol can be used
as an alias for an indirect_reg. ISymbols are constant values
are defined using .DEFINE directives.
Example:
.DEFINE IDXREG = R(R40)
.DEFINE IDX = IDXREG
.DEFINE IDXFOO = R(REG12)
User's Manual 5.1 Inmotion Technologies AB
Doc. No.9032 0027 01 (B), Rev. 11.07.2001