Conditions for Selecting and Using the ASi-5 Successor Model

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.

In contrast to the archived item, the successor model has 4 x counter inputs (pulse counter), which can optionally be configured for 1-channel or 2-channel operation via the  Bihl+Wiedemann software suites (BW2916, BW2902).

The number and position of the connections for peripheral devices (sensors, actuators) as well as for ASi and AUX (auxiliary power) vary to a certain extent between archived items and successor models depending on the design and performance characteristics of the particular device. In some cases, the dimensions between the devices may also differ.

Please make sure that there is sufficient space available for installation in the electrical cabinet and that the connecting cables are of sufficient length.

For the corresponding technical details, please refer to the datasheet and the attached documentation. An Eplan macro is also available for each unit as a download on the respective product detail page.

The pin assignment of the M12/M8 connections for peripheral devices (sensors, actuators) can vary to a certain extent between archived items and successor models depending on their design and performance characteristics.

If pre-assembled cables are to be used for the connection between module and peripheral device, first check whether the pin assignment at both cable ends matches the pin assignment of the module.

For the corresponding technical details, please refer to the datasheet and the attached documentation. An Eplan macro is also available for each unit as a download on the respective product detail page.

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.

When switching from ASi-3 slaves to ASi-5 slaves, the bit assignment of the I/O data or process data can differ considerably between archived items and successor models. Up to 16-bit I/O data and profiles with up to 32 bytes of process data are available.  For the corresponding technical details please refer to the datasheet and the attached documentation.