Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 515)

L-force | PLC Designer
Operands in PLC Designer
DMS 3.2 EN 02/2011 TD29 513
10.3 Addresses
10.3.1 Adresses, Note
Stop!
Online Change might change the contents on addresses. Please regard this when
using pointers on addresses !
10.3.2 Address
The direct display of individual memory locations is done through the use of special
character sequences. These sequences are a concatenation of the percent sign "%", a
range prefix, a prefix for the size and one or more natural numbers separated by blank
spaces.
The following range prefixes are supported:
I Input
Q Output
M Memory location
The following size prefixes are supported:
X Single bit
None Single bit
B Byte (8 Bits)
W Word (16 Bits)
D Double word (32 Bits)
Examples:
%QX7.5 and %Q7.5 Output bit 7.5
%IW215 Input word 215
%QB7 Output byte 7
%MD48 Double word in memory position 48 in the memory location.
%IW2.5.7.1 depending on the PLC Configuration
ivar AT %IW0 : WORD; Example of a variable declaration including an address assignment