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Setting the parameters of the Ethernet-server

Description:
The Ethernet-server communication parameters executed by the PmaComm object can be defined in this configuration window.

The window is called from the "Basic parameters of communication" configurator, if the communication protocol is designated for Ethernet-server (i.e. for the PmCharServer communication driver).

Configuration items:
TCP/UDP port numberEthernet port number for communication.
Ethernet transfer typeDeatiled Ethernet protocol type specification.
TCP (default) - Allows unlimited, security checked data transfers. The data is transferred by separate portions so-called packets.
UDP - Only limited data transfers are allowed (often limited to 500 Bytes). The data transfer is very fast.
Timeout for inactivation of TCP connection [s]If this TCP connection is inactive during this time (no communication messages are sent) then the server terminates this connection.

The default value is 300 seconds (i.e. 5 minutes).

Timeout of one packet transfer [ms]If the data transfer (1 packet) takes longer than defined, then the transfer is terminated (the onEndOfTransfer event is triggered with the 24 error or 66 error).

The default value is 2000 ms.

Maximum number of clientsMaximum number of clients that can connect to the corresponding communication driver. In the PROMOTIC licences, these clients are counted as PmDataClient.
Max.number of rows in INFO/COMM, 'Monitor' pageThe transmision status can be chceked in the INFO system. The information can be found in the INFO item "COMM".

This item contains more pages. The "Monitor" page contains circular transfer history list including the characters that has been transferred. The size of the circular list can be entered here.

The default value is 1000.


History:
Pm9.00.03: Created
PROMOTIC 9.0.3 SCADA system documentation - MICROSYS, spol. s r.o.

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