Structure of an AS-i slave
(Original Document)
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At a glance
The AS-i bus allows interconnection of 31 slave devices each with:
So, the AS-i bus is capable of managing a maximum of 248 I/O’s.
Each slave has its own address and a profile (defines variables exchange).
Structure illustration
The figure below shows the structure of an AS-i slave.
Description of constituent elements
The table below shows the different elements that make up the structure of an AS-i slave.
Number
Item
Description
1
Input/output data
Input data is stored by the slave and made available for the AS-i master.
Output data is updated by the master module.
2
Parameters
The parameters are used to control and switch internal operating modes to the sensor or the actuator.
3
Configuration/Identification
This field contains:
  • the code which corresponds to I/O configuration,
  • the slave identification (ID) code.
4
Address
Physical address of slave.
Note: The operating parameters, address, configuration and identification data are saved in a non-volatile memory.