28
Manual – IPOSplus®
4
Introduction
IPOS Variables
4
IPOS Variables
4.1
Introduction
The integrated positioning and sequence control system uses global variables that are
used by all the tasks and interrupts. There are
no
local variables that are only declared
either in a task or a function.
All variables (page 25) are 32-bit variables treated as signed integers during calcula-
tions and comparisons. In the user program, you must check that the final result of a cal-
culation lies within the number range.
The number range can be represented as follows in a number circle:
Example:
Each variable has an index that can be used to read and write variables using, for ex-
ample, the Movilink command (_MoviLink/
MOVLNK
). The index is calculated as follows:
Index = VarNo. + 11000
Example: H371 has the index 11371.
473666955
2147483647
0x7FFF FFFF
2147483647
2147483648
0x8000 0000
-2147483648
0 (decimal absolute)
0x0 (hexadecimal)
0 (IPOS value)
4294967295
0xFFFF FFFF
-1
+
H
H
H
H
H
H
H
H
H
H
0
4
1 7
3
0
1
0
0 2147 483 647
1 1
3
0
1
2147 483 648
=
=
=
=
=
=
=
+
= −
,
,
,
,
P
i
f
kVA
Hz
n
P
i
f
kVA
Hz
n
