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

3.1.5.2.4

Analog Output Modules

The group of analog output modules is divided into 4 types of modules:
Type of module
Analog output modules receive the consumer status (IOCS) from the I/O
controller and supply it with the provider status (IOPS) of the existing output
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 directions.
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
WAGO-I/O-SYSTEM 750
PROFINET IO
Description
2-channel analog output module,
2AO 16 Bit output data per signal
channel
2-channel analog output module,
16 Bit input and output data plus
control and status byte per signal
2AO_EM
channel, access to the register
structure using cyclic data
exchange
4-Channel analog output module,
4AO
16-Bit signed process value per
signal channel
4-channel analog output module,
16 Bit input and output data plus
control and status byte per signal
4AO_EM
channel, access to the register
structure using cyclic data
exchange
Module 75x-4xx nAE, ...
Data length / [Byte]
PA
E A Tx
2AO 4 - 5
4AO 8 - 9
Module 75x-4xx nAE, ...
Data length / [Byte]
PA
E A Tx
2AO_EM 6 6 7
4AO_EM 12 12 12
TLG
E
Rx
1 -
1 -
TLG
E
Rx
7 U8,I16
12 U8,I16
PROFINET IO 750-340
Process Image
Substitute I/O modules
75x-550, 75x-552, 75x-554,
75x-556, 75x-560, 75x-585
75x-551, 75x-553, 75x-555,
75x-557, 75x-559
Data object
INST A INST
- I16
- I16
Data object
INST A INST
2 U8,I16
4 U8,I16
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2
4
2
4