Network-based Synchronization

IEEE 1588, also known as the precision time protocol (PTP), is an Ethernet-based synchronization method designed for cabled, local networks. The PTP protocol provides a fault tolerant method of synchronizing all participating clocks to the highest quality clock in the network. This method of synchronization between networked devices uses packet-based communication and is possible over the long distances allowed for each Ethernet link, without signal propagation impact. IEEE 1588 has many different profiles, such as IEEE 802.1AS-2011, each of which use different features. Because the profiles are not interoperable with each other, make sure it is known which profile is implemented on the device. For devices on the network to synchronize with each other using IEEE 1588, all devices must be compatible with the desired IEEE 1588 profile and must all be connected within the selected IEEE 1588 profile-compliant network infrastructure.

The cRIO-905x controllers are compatible with both the IEEE 802.1AS-2011 profile and the IEEE 1588-2008 (1588v2) Delay Request-Response profile. However, each network port must be configured individually to the specific profile required for the network.