Ethernet Global Data is a protocol that enables producer (server) to share a portion of its memory to all the consumers (clients) at a scheduled periodic rate. This protocol is developed for GE Fanuc

GE Fanuc Automation North America, Inc.

GE Intelligent Platforms is a business unit of GE Home & Business Solutions. GE Intelligent Platforms is headquartered in Charlottesville, Virginia,and consists of three units: Embedded Systems, Software and Services, and Control & Communications Systems....

 PLC

Programmable logic controller

A programmable logic controller or programmable controller is a digital computer used for automation of electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or light fixtures. PLCs are used in many industries and machines...

s to exchange data between PLCs / GE Drive Systems / GE HMI systems. The protocol uses UDP

User Datagram Protocol

The User Datagram Protocol is one of the core members of the Internet Protocol Suite, the set of network protocols used for the Internet. With UDP, computer applications can send messages, in this case referred to as datagrams, to other hosts on an Internet Protocol network without requiring...

 over Ethernet

Ethernet

Ethernet is a family of computer networking technologies for local area networks commercially introduced in 1980. Standardized in IEEE 802.3, Ethernet has largely replaced competing wired LAN technologies....

layers for exchanging the data. A snapshot of internal reference memory, mediated by an Ethernet interface, is referred to as an exchange. An exchange does not require a reply and is identified by a unique combination of three major identifiers.

• The Producer ID (the producer's IP address)
• The Exchange ID (the exchange's identifier)
• The Adapter Name (the Ethernet interface identifier)

External Links

• EGD Objectives