JVL MIS17 Series, Руководство пользователя

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260 JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS17x, 23x, 34x, 43x
9.7 Graphic programming command reference
9.7.25 Calculator (basic)
Icon:
Dialogue:
Function: Performs a calculation using register values, constants, and the four basic
arithmetic operations: +, -, * and /. The result is stored in a register.
Arithmetic operations take place in the order that they are specified.
Operands/arguments can be either integer constants or registers. The caption
of the dialogue box shows the resulting expression in traditional infix format. It
is continuously updated as you type in the expression.
Note that if you write a value to a register using this command, that value is
always measured in native motor units. Conversion from generic engineering
units is only supported for the commands ‘Set a register’, ‘Jump according to a
register’, and ‘Wait for a register value before continuing’.
If you make a calculation please be aware that most of the registers in the MIS
motors operate with integers so its often needed to multiply before doing a
division in order to become a precise result.
Also be aware that all calculations are done in 32 bit format which gives the
possibility to operate with values from
-2
31
to 2
31 . If the result of a calculation
gives a higher value than
2
31 it will therefore becomes negative and similar if a
calculationresult becomes lowe than
-2
31 the result becomes positive.