AS-i = efficient: Each sensor and actuator is assigned to its own individual address – easily. If required, the slaves can replaced in next to no time and the address is automatically re-assigned. With AS-i, degree of protection IP65/67 comes as a standard – ensuring ruggedness and stability even in harsh environments. In case of slave failure, the master provides you with all required information thanks to perfect device and network diagnostics, making troubleshooting a walk in the park.

Comfortable addressing

How can a specific sensor for evaluation or a specific actuator for switching be selected from a vast pool of slaves? Very easily. In only two steps:

  • Step 1: Each AS-i slave is assigned to a distinct address via the addressing unit.

  • Step 2: Network configuration is taken over at the push of a button on the master.

The AS-i master detects all connected AS-i slaves on the basis of their address in next to no time. The control can immediately access the network’s AS-i slaves. The AS-i slaves’ are automatically assigned to the I/O range of the control. Also address assignment after module replacement is realized automatically. This makes separate configuration or deployment of qualified personnel unnecessary.

Rapid device replacement

The AS-i modules and all other AS-i slaves by Siemens are optimally suited for the assembly of a simple bus. LEDs for status display and signal diagnostics on the AS-i slaves ease commissioning and device replacement.
Depending on the respective version,very high degrees of protection – up to IP69K – are supported. This results in optimum prerequisites for fault-free operation, even under harsh conditions.

Ruggedness and stability

The modulation procedure especially developed for AS-Interface ensures extremely stable data transfer and maximum operating availability. An intelligent data protocol protects the entire system and makes it particularly resistant to faults. As a result, additional cable grounding or shielding can be done away with.
The cost-favorable AS-Interface cable, which can be routed just as flexibly and easily as any electrical installation, can thus be used. Special components are neither required for the connection of slaves nor for feeders.

Device and network diagnostics

Redefined engineering with the TIA Portal: Also diagnostics and fault messages can be traced over all bus hierarchies right down to the lowest actuator/sensor level and described in plain text. A realistic representation of the respective bus topology serves as the basis.
The TIA Portal also sets new standards with regard to efficiency. The data of subordinate AS-i networks can be flexibly integrated via drag & drop on the basis of SIMATIC HMI and WinCC flexible. For this purpose, only the signal information of any AS-i slave has to be "dragged" to the operating screen of an HMI Basic Panel.
In addition, integrated web servers and diagnostics on the basis of userspecifically created websites facilitate the data visualization of all connected AS-i networks and their integration in user-specific operating concepts (e.g. website for documentation and operation of a SIMATIC S7-1200).

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