|Network address||Network address to which the communication will be connected. The address can be entered by both IP address (e.g. 192.168.0.15) or by name (e.g. server11).|
Macro expression can be used for input (it is evaluated while the application is launching).
|TCP/UDP port number||Ethernet port number for communication. For communication of the PROMOTIC application with the PLC this number is usually hardware predefined and the PROMOTIC application must use the same value (see the note below).|
|Ethernet transfer type||Deatiled Ethernet protocol type specification. The communication protocol is usually firmly implemented into the automated machine, therefore the PROMOTIC application has to adapt identical protocol type (see the note below).|
TCP (default) - Allows unlimited, security checked data transfers. The data is transferred by separate portions so-called packets.
|Number of repeats after unsuccessful transmission||Selection of the number of repeating the message transmission if the response has been defective or it hasn't been received at all. This setting is meaningful only for the communication messages of the Master type. The default value is 0 (i.e. without repeat).|
|Timeout of one packet transfer [ms]||If the data transfer (1 packet) takes longer than defined, then the transfer is terminated (onEndOfTransfer event fires with the 24 error or 66 error). The default value is 2000 ms.|
|Filter ECHO chars||Specifies whether the received data have to be removed (filtered) because it goes about repeating characters transmitted from the message. |
Note: Received filtered ECHO characters are recorded together with other characters in the INFO system in the /COMM/Monitor item.
|Not connect until first transfer||If checked, then the PROMOTIC application will not connect to server immediately on application launch, but it will connect when the first transfer starts.|
|Close connection after every transfer||If checked, then after each transfer the connection is closed. Next time, the data transfer occures, the application will connect to the server first. |
This process slows down the communication, therefore it is suitable only for infrequent communications. The ceaseless connection opening/closing may cause problems with the PLCs rendering this kind of communication less reliable.
If sending multiple messages before connection close is needed, then it is better to UNcheck this configurator (otherwise the connection would be closed after each transfer) and call the ClosePort method after the transfer is finished.
See also: Connection Limit - open connections limit.
|Max.number of rows in INFO/COMM, 'Monitor' page||The transmision status can be chceked in the INFO system. The information can be found in the INFO item "COMM". This item contains multiple flags. The "Monitor" page contains circular transfer history list including the characters that has been transferred. The size of the circular list can be specified here. The default value is 1000.|