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5.4.2 Analog I/O Modules
All analog I/O modules have 2 bytes of extendable parameterization
information, which serves for the identification on the internal bus and the
structure of the mapping table. With analog inputs 2 bytes follow which are
reserved for future options. Modules with diagnostics capability allow the
diagnostics message to be suppressed or released channel for channel.
Analog outputs contain 2 bytes of parameterization data per channel. In this
case the substitute values are saved for the respective channels.
5.4.2.1
2 AI I/O Modules
Module
750-452, 750-454, 750-456,
750-461, 750-462, 750-465,
750-466, 750-467, 750-469,
750-472, 750-474, 750-475,
750-476, 750-477, 750-478,
750-479, 750-480, 750-483,
750-485, 750-491, 750-492,
750-4aa 2 AI
Process Image
Internal bus
PROFIBUS DP
PFC (CPU)
Parameter
I/O module is physically
Diagnostics channel x
Parameter
Offset
0
1
2
3
WAGO-I/O-SYSTEM 750
Bus System
Configuration and Parameterization of the I/O Modules
Register Communication
possible
Register communication
Yes
No
Value
plug fitted
not plug fitted
released
locked
*)
Default settings
Information
7
6
5
4
3
0
PFC
Plug
0
Diag
En1
7
6
5
4
3
0
1
ID5
ID4
ID3
15
14
13
12
11
reserved
7
6
5
4
3
reserved
Identification
Yes
No
Input Image
Meaning
The I/O module process data is:
*)
- supplied by the I/O module
- set to zero by the coupler
The diagnostics information of the correspond-
ing channel is
- transmitted to PROFIBUS DP master
*)
- not transmitted to PROFIBUS DP master
2
1
0
Diag
0
0
En0
2
1
0
ID2
ID1
ID0
10
9
8
2
1
0
I/O Modules
Identification
hex
dec
0xF2
242
0x51
81
Output Image
in [Byte]
in [Byte]
6
6
6
6
4
0
4
0
• 185
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