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192 •
I/O Modules
Configuration and Parameterization of the I/O Modules
5.4.3 Digital Special Modules
All special digital modules have 2 bytes of extended parameterization
information, which serves for the identification on internal bus and the
structure of the mapping table.
Input modules (counter) are followed by 2 bytes, which are reserved for future
options.
Output modules (PWM outputs) are followed by 6 bytes of parameterization
data, which serve for the saving of substitute values for a maximum of 2
channels (2 words).
5.4.3.1
Counter Modules
Module
750-404, 750-638
Process Image
Internal bus
PROFIBUS DP
PFC (CPU)
Parameter
I/O module is physically
Parameter
Offset
0
1
2
3
PFC
Plug
Italic
Information
7
6
5
4
0
PFC
Plug
0
7
6
5
4
0
1
1
1
1
1
0
0
15
14
13
12
reserved
7
6
5
4
reserved
0
Module is mapped in the field bus and PFC-PA
6
1
Module is exclusively mapped in the PFC-PA
0
Module is physically not present
5
1
Module is physically present (default)
Cannot be changed
Register communication
possible
Yes
No (not possible)
Value
*)
plug fitted
not plug fitted
- set to zero by the coupler
*)
Default settings
3
2
1
0
0
0
0
0
3
2
1
0
0
1
1
0
1
0
0
0
11
9
8
7
3
2
1
0
Identification
Identification
hex
0xF2
Input Image
Output Image
in [Byte]
6
6
-
6
Meaning
The I/O module process data is:
- supplied by the I/O module
ID 750-404
ID 750-638
WAGO-I/O-SYSTEM 750
dec
242
in [Byte]
6
6
-
6
Bus System
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