FieldServer instruction manual GE-EGD Ethernet Global Data Description, FS-8704-12GE-EGD Manual

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FS-8704-12_GE-EGD Manual

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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. There are two Ethernet ports standard on the FieldServer. 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 master the FieldServer acts as an EGD producer.

The IC697CMM742 Ethernet module supports both GE SRTP and GE EGD.

FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com Tel: (408) 262-2299 Fax: (408) 262-9042 Toll_Free: 888-509-1970 email: support@fieldserver.com

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Contents FS-8704-12 GE-EGD Ethernet Global Data Table of Contents FS-8704-12GE-EGD Manual GE-EGD Ethernet Global Data DescriptionFieldServer Technologies Description Provided by the Supplier of 3rd Party EquipmentHardware Connections Column Title Function Legal Values Configuring the FieldServer as a GE-EGD ClientData Arrays Section TitleClient Side Connection Descriptors Client Side Node DescriptorsFS-8704-12GE-EGD Manual Example Driver Specific Map Descriptor Parameters FS-8704-12GE-EGD Manual Column Title Function Legal Values Map Descriptor Example a Simple Consumer Map Descriptor Map Descriptor Example Map Descriptor BasicsMap Descriptor Example Multiple Consumer Map Descriptor Server Side Node Descriptors Wrbc Ieee Timing ParametersMap Descriptor Example FS-8704-12GE-EGD ManualPage 16 FS-8704-12GE-EGD Manual Create a CSV file that will consume the produced data Byte Dataq Appendix A.2. Data Types Message Action Appendix B. Error MessagesAppendix B.1. EGD-ii EGD Internal Indications Array Contents ElementAppendix B.2. Driver Stats Array Element ContentsAppendix C.3. Status Values Appendix C.2. Produced Time StampThis page Intentionally Left Blank
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