Advanced Physical Layer (APL)
For process automation, a group of leading component manufacturers has defined an IP-based communication standard that is intended to replace many of the fieldbuses used today. The technology called Advanced Physical Layer (APL) is based on a 2-wire ethernet according to the 10BASET1L standard. This was defined in the IEEE 802.3cg and is therefore compatible with the IEEE 802.3 ethernet specification. embeX advises on its application and supports the development.
APL is supported by
- Interessengemeinschaft Automatisierungstechnik der Prozessindustrie e.V. (NAMUR) as part of the NAMUR Open Architecture (NOA)
- Profibus and Profinet International (PI)
- FieldComm Group
- IEEE: Single Pair Ethernet specification P802.3cg
- IEC: Standard TS 60079-47 in planning
Field testing is currently underway and an ASICs as PHY have been developed for APL.