Modbus functions
FP Web-Server V2.810 EN 159
unit. The 9-pin RS232C can alternatively communicate via Modbus RTU
protocol with a Modbus RTU slave unit.
Modbus-TCP communication can also occur via modem. To do so, the client
must first dial up the FP Web-Server's PPP server to establish a modem
connection.
The Modbus-TCP server can handle up to 6 client connections
simultaneously. If there are already 6 connections and another client
wishes to establish a connection, the oldest connection can be ended
automatically.
Up to 3 different port numbers are possible. Alternatively, these ports can
be switched to UDP communication where each UDP port is assigned one
task. Both of the FP Web-Server's RS232C ports can be addressed.
Features:
The Modbus-TCP client can address the FP Web-Server's two RS232C
ports (MEWTOCOL or Modbus RTU) by using a port number or unit ID.
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