Overview

The AES70 standard was published by the Audio Engineering Society, which is based in New York. It defines a scalable control protocol for professional audio devices and
describes monitoring and control of such devices, but not the transfer of media data.
The function blocks of the TwinCAT 3 AES70 (OCA) Communication PLC library can be used to establish data exchange between a TwinCAT PLC and a device that supports the AES70 (OCA) standard. The user can query or set properties of different objects in a device (Oca device). Various function blocks such as FB_OcaGain, FB_OcaMute or FB_OcaSwitch are available for this purpose.
The user can thus integrate OCA-compatible audio systems into Beckhoff's PC-based control technology platform and select from a wide range of control panels and various I/Os.

Further information can be found on the Beckhoff website under entertainment industry.

For the OCA-capable amplifiers from d&b audiotechnik, an example of a higher-level function block with some basic functions such as gain, mute or presets is available for download from the d&b audiotechnik website under www.dbaudio.com > Systems > Networks and Integration > Integration