FieldServer FS-8704-12 - Manual (Page 3)

FS-8704-12 GE-EGD Driver Manual Page 3 of 23
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Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]
1 GE-EGD (ETHERNET GLOBAL DATA) DESCRIPTION
The GE-EGD (Ethernet Global Data) driver allows the FieldServer to transfer data to and from devices over Ethernet
using GE-EGD (Ethernet Global Data) protocol. The FieldServer can emulate either a Server or Client.
GE Fanuc Automation and GE Drive Systems developed an Ethernet Global Data, or EGD, exchange for PLC and
computer data in 1998. EGD uses UDP or datagram messages for fast transfer of up to 1400 bytes of data from a
producer to one or more consumers. UDP messages have much less overhead than the streaming TCP connection
used for programming or CommReq’s over SRTP Ethernet. Like Genius® broadcast input or directed control
messages, UDP messages are not acknowledged. They can be sent at short intervals. Chances of one or more
messages being dropped are small on a local area network.
As a Client the FieldServer acts as an EGD consumer. As a Server the FieldServer acts as an EGD producer.
The IC697CMM742 Ethernet module supports both GE SRTP and GE EGD.
2 DRIVER SCOPE OF SUPPLY
2.1 Supplied by FieldServer Technologies for this driver
FieldServer Technologies PART # Description
FS-8915-10
UTP cable (7 foot) for Ethernet connection
2.2 Provided by the Supplier of 3 r d Party Equipment
EGD capable GE communication/processor module.
The IC697CMM742 modules configured with Control and IC693CPU364 and IC200CPUE05 configured with
VersaPro can send and receive EGD.