Objects associated with specific applications
Addressing in-rack Input/Output module objects
At a Glance
Illustration
Addressing of main bit and word objects of input/output modules is done geographl l ically. That means that it depends: on the physical position of the module in the rack, on the module channel number.
Addressing is defined in the following way:
%
Symbol
I, Q, M, K
Object type
X, W, D, F
Format
Y
Position i
Channel no.
r
Position
Syntax
Family
Symbol
Object type
Format (size)
Module position
Channel no.
The table below describes the different elements of addressing.
i
W
D
F
Element Values Description
%
I
Q
M
K
X y
-
-
-
-
-
-
-
Picture of the physical input of the module,
Picture of the physical output of the module,
This information is exchanged automatically at each cycle of the task to which it is attached.
Internal variable.
This reading or writing information is exchanged as the application requires.
Internal constant.
This configuration information is available as read only.
Boolean.
For Boolean objects this element can be omitted.
16 bits
32 bits
Single length.
Double length.
32 bits
0 to 4
0 to 6
0 to 8
0 to 10
Floating point.
The floating format used is the IEEE Std 754-1985 standard (equivalent to
IEC 559).
Position number in the rack.
TSX 37-05
TSX 37-08
TSX 37-10
TSX 37-21/22
0 to 31 or
MOD
MOD: channel reserved for managing the module and the parameters common to all the channels.
TLX DS 37 PL7 xxE
29
Objects associated with specific applications
Family
Position
Element r
Values
0 to 15 or
ERR
Description
Position of the bit in the word.
ERR: indicates a module or channel fault.
Examples
Object
%IW0.8
%I1.5
%Q1.2
%IW7.1
%I1.MOD.ERR
The table below presents some examples of object addressing.
Description Illustration
Process value of the channel 8 analog input of the built-in application-specific interface.
Channel 5 input status of TSX DMZ 64 DTK module situated in position 1 in the rack.
Channel 2 output status of TSX DMZ 64 DTK module situated in position 1 in the rack.
Channel 1analog input process value of TSX
AEZ 801 module situated in position 7 in the rack.
Information of a fault on TSX DMZ 64 DTK module situated in position 1 in the rack.
0
2
2
3
7
T
S
X m m c o
1 2 3
1
0
S
A
Z
4
30
TLX DS 37 PL7 xxE
