Architecture of the TBX SAP 10 Module
(Original Document)
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At a Glance
To enable the PLC to access the data structure of an AS-i slave, the TBX SAP 10 must integrate data fields and manage lists.
Illustration of the Architecture
The figure below shows the architecture of the TBX SAP 10 module.
Description of Constituent Elements
The table below shows the different elements that make up the architecture of the TBX SAP 10 module.
Element
Description
I/O data
Images of the 124 inputs and 124 outputs of the AS-i bus.
Current parameters
Image of the parameters of all slaves.
Configuration/Identification
This field contains all the I/O codes and identification codes for all detected slaves.
LDS
List of all slaves detected on the bus.
This list stores the addresses of all slaves on the AS-i bus.
LAS
List of active slaves on the bus.
This is the list of slaves that must be acknowledged when a configuration is received. In this case, the AS-i bus is in AS-i protected mode. AS-i protected mode corresponds to the mode configured in Control Expert.
LPS
List of projected slaves on the bus configured by Control Expert. The master checks the slaves present on the bus against this list.
This is the list of slave addresses provided. Their identification also comply with that provided in the reference configuration information.
Slave Activation Principle
Data can only be exchanged with active slaves.
The diagram below shows the AS-i slave activation principle.