Panasonic FP Web-Server User Manual page 158

FP Web-Server V2.11
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This function uses the configurable Modbus to PLC address translation table.
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The gateway function routes all Modbus function requests.
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The Modbus-TCP server can handle UDP broadcast messages (FP-WEB2 does not
generate a response message).
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An integrated setup wizard helps you configure the Modbus-TCP server.
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NumberMaxOfServerTransactions = 6
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SO-RCVBUF, SO-SNDBUF = 4kB with TCP and 2kB with UDP (other IP stack
parameters can be defined)
12.2 Modbus-TCP Server of the FP Web-Server in General
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