GE Ethernet Global Data Communication Module
MVI69-EGD
The Ethernet Global Data (EGD) module can be used to interface many different protocols with EGD devices. The EGD driver supports both the producer/consumer 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.
Features and Benefits
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 each device on the network can produce these types of messages and each device determines which of these messages to consume.
Applications
Use the inRAx EGD module to connect various field devices using different networks or protocols, and share data between these devices over a wired connection. This is accomplished by exchanging shared common database information with the efficient but powerful Ethernet Global Data protocol.
Functional Specifications
The driver interfaces with a common internal database in the module. This permits the sharing of data across many different networks. The module supports UDP of service port 7927 (0x1F01) to handle all requests made of the module. The module will only service the requests and generate response messages. It will not generate command requests. The module supports the following functions specified in the EGD protocol:
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Code
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Description
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3
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Retrieve Configuration Request
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4
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Retrieve Configuration Response
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7
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Summary Request
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8
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Summary Response
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9
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Capabilities Request
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10
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Capabilities Response
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15
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Statistics Request
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16
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Statistics Response
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18
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Command NAK
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32
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Read Request
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33
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Read Response
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34
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Write Request
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35
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Write Response
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36
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Masked Write Request
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37
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Masked Write Response
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The producer functionality provided in the EGD protocol is used to transfer portions of the module's database to other EGD nodes on the network. The consumer functionality is used to transfer data from other nodes on the network into the module's database. The EGD module generates produced data as defined in the user configuration exchange list, from the module's internal database, and is produced at the frequency defined in the exchange list. This data can be broadcast to all nodes or to a specific node on the network. The EGD module consumes data as defined in the user configuration exchange list. This data is derived from other nodes on the network and is placed in the module's internal database. If a consumer exchange is not received at the specified timeout, the driver will update the status of the exchange. When the driver again receives the exchange, the status will be updated.
Hardware Specifications
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Dimensions
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Standard 1769 Single-slot module
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Current Load
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800 mA max@ 5 VDC (Serial)
Power supply distance rating of 2 (L43 and L45 installations on first 2 slots of 1769 bus)
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Operating Temp.
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0 to 60 Deg C
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32 to 140 Deg F
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Storage Temp.
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-40 to 85 Deg C
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-40 to 185 Deg F
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Relative Humidity
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5 to 95% (w/o condensation)
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LED Indicators
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Power and Module Status
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Application Status
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CFG Port Activity
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Error Status
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CFG Port
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RJ45 (DB-9M w/ supplied cable)
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RS-232 only
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No hardware handshaking
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App Port (Ethernet)
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10/100 MB Ethernet compatible interface
Ethernet Broadcast Storm Resiliency = less than or equal to 5000 [ARP] frames-per-second and less than or equal to 5 minutes duration
Electrical Isolation 1500 V rms at 50 Hz to 60 Hz for 60 s, applied as specified in section 5.3.2 of IEC 60950: 1991
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Shipped with Unit
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RJ45 to DB-9M cables for each port
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6-foot RS-232 configuration Cable
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Ethernet and CFG Ports
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Ethernet Port
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RJ45 connection
10/100 Mbit Ethernet support (auto-sensing)
Electrical Isolation 1500 V rms at 50 Hz to 60 Hz for 60 seconds, applied as specified in section 5.3.2 of IEC 60950: 1991
Ethernet Broadcast Storm Resiliency = less than or equal to 5000 [ARP] frames-per-second and less than or equal to 5 minutes duration
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CFG Port
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RJ45 (DB-9M with supplied cable)
RS-232 only
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Shipped with unit
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RJ45 to DB-9M adapter cable and 6-foot RS-232 configuration cable for debug port
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Ordering Information
| MVI69-EGD |
GE Ethernet Global Data Communication Module |
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| To place an order, please contact your local ProSoft Technology, Inc. distributor. For a list of ProSoft distributors near you, click here. |
Distributors:
Place your order by email to orders@prosoft-technology.com:, fax to +1 661-716-5101.
Sales and Support:
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