Analog Input Modules - WAGO -I/O-SYSTEM 750 Technical Description, Installation And Configuration

68 • PROFINET IO 750-340
Process Image
3.1.5.2.3

Analog Input Modules

The group of analog input modules is divided into 5 types of modules:
Type of module
Analog input modules receive the consumer status (IOCS) from the I/O
controller and supply it with the provider status (IOPS) of the existing input
information in case only the actual user data is replaced. If all existing
information in the input and output image is made available then the process
data qualifier is additionally transmitted in the opposite direction.
The following table shows a list of the number of bytes for the individual
modules that are allocated in the respective process image (PA) and the
telegrams (TLG) in the direction of transmission and reception (Tx, Rx).
Type
Type
Description
2-channel analog input module,
AI 16 Bit input data per signal
channel
2-channel analog input module,
16 Bit input and output data plus
control and status byte per signal
2AI_EM
channel, access to the register
structure using cyclic data
exchange
3-channel analog input module,
16 Bit input and output data plus
control and status byte per signal
3AI_EM
channel, access to the register
structure using cyclic data
exchange
4-Channel analog input module,
4AI
16-Bit signed process value per
signal channel
4-channel analog input module,
16 Bit input and output data plus
control and status byte per signal
4AI_EM
channel, access to the register
structure using cyclic data
exchange
Module 75x-4xx nAE, ...
Data length / [Byte]
PA
E A Tx
2AI 4 - 5
4AI 8 - 9
Module 75x-4xx nAE, ..., EM
Data length / [Byte]
PA
E A Tx
2AI_EM 6 6 7
3AI_EM 12 12 13
4AI_EM 12 12 12
TLG
E
Rx
1 INT16
1 INT16
TLG
Input
Rx
7 INT16
UINT8,UINT8,
13
INT16
12 UINT8,UINT16
Substitute I/O modules
75x-452, 75x-454, 75x-456,
75x-461, 75x-462, 75x-465,
75x-466, 75x-467, 75x-469,
75x-472, 75x-474, 75x-475,
75x-476, 75x-477, 75x-478,
75x-479, 75x-480, 75x-481,
75x-483, 75x-485, 75x-491,
75x-492
75x-493
75x-453, 75x-455, 75x-457,
75x-459, 75x-460, 75x-463,
75x-468
Data object
INST A
2 -
4 -
Data object
INST Output
2 INT16
UINT8,UINT8,
3
INT16
4 UINT8,UINT16
WAGO-I/O-SYSTEM 750
PROFINET IO
INST
-
-
INST
2
3
4