GE Ethernet Global Data Network Interface Module For CompactLogix

The MVI69-EGD Ethernet Global Data (EGD) module can be used to interface many different protocols with EGD devices. The EGD driver supports both the producerconsumer service port (18246) and the command service port (7937) using the UDP protocol over an IP network. The user defines the data to be produced and consumed in a configuration file downloaded to the module.
GE Fanuc Automation and GE Drive Systems developed an Ethernet Global Data, or EGD, exchange for PLC and computer data in 1998. Ethernet Global Data (EGD) offers versatility where a mix of control devices requires cooperation with each other. This involves sharing of information across the applications regardless of device or network type, often at high speed, and with high reliability.High reliability means fewer communication failures and having the ability to detect failures upon occurrence. Particular emphasis is delivered for applications requiring periodic or frequent updates and time synchronization of devices.
The protocol supports Unicast, Broadcast and Multicast group messaging. Efficiency is based on the fact that each device on the network can produce these types of messages and each device determines which of these messages to consume.