The fast device replacement (FDR) service employs a central FDR server to store the following parameters for a BMEAHI0812 or BMEAHO0412 analog I/O module:
When you replace a module, the server automatically configures the replacement module with the identical parameters as the replaced module. The FDR service removes the need for service personnel to maintain configuration records and reduces the possibility of human error in entering the new configuration.
The M580 Ethernet CPU includes an FDR server. The server is a passive device that stores both IP addressing and configuration parameters for the modules on the network. Each network module is identified by its device name. After the FDR service is enabled, the server responds to requests from the FDR clients.
The BMEAHI0812 and BMEAHO0412 analog I/O modules are FDR clients. They use the FDR server to facilitate replacement of the module. Each client is assigned a device name that uniquely identifies it from other modules on the network. After the module is connected to the network, it receives a copy of its operating parameters from the FDR server. These parameter settings enable a replacement module to operate exactly as the original client.
You can use the gateway DTM to send an updated parameter file to the FDR server, where it is stored in Flash memory.
When it is time to replace a module, the following occurs:
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Sequence
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Event
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1
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Your service personnel needs to assign the device name of the original module to the replacement module.
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2
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Your service personnel places the new module on the network, which is configured to use the DHCP client service.
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3
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The module automatically sends a request to the server for a set of IP parameters that is used by a module with this device name.
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4
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The module receives the IP parameters and then connects to the FDR server and downloads a copy of its operating parameters.
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5
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After the parameters are downloaded, the module implements the parameters and resumes operation.
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