Conditions for Selecting and Using the ASi-5 Successor Model

When designing a new system or revising an existing machine , it is recommended to use the latest and most powerful devices. The successor models offer all the well-known advantages of the previous Bihl+Wiedemann ASi modules, plus a wealth of new functions and the best value for money.

When designing a new system or modernising an existing machine, it is important to select the right device with the required  technical features.

Especially, when exchanging an ASi slave or ASi Safety slave with a successor model in an existing machine, care must be taken to ensure that particular technical characteristics are as similar as possible or even better (depending on the desired upgrade of the machine) than the one you have:

• Number of (safe) inputs or outputs
• Number of allocated ASi addresses/ASi slaves per ASi circuit
• Supply voltage from ASi or from AUX
• Max. supply current/derating
• Number and position of connections for ASi, AUX and peripheral devices
• Pin assignment for modules with M12/M8 connections
• Dimensions
• Required version of Bihl+Wiedemann software suites for configuration, diagnostics and commissioning

The successor models recommended by Bihl+Wiedemann are always as similar as possible to the respective archive articles with regard to the above criteria and at the same time they offer as many new functions and improved technology as possible.

Changing the supply voltage from ASi to AUX (24 V auxiliary power) offers the advantage that in most cases considerably more current is available to supply the sensors or actuators, not only at each individual connection but also in total.

The ASi slave profile can vary to a certain extent between archived items and successor models depending on performance features and function. ASi slaves with different slave profiles are not exchange-compatible as successor models. The manual with the exchange instructions can be found in the enclosed documentation.