JSC „VILTRUS“ •
K. Donelaičio str. 62, LT
-44248 Kaunas, Lithuania •
Tel. +370 640 65040 •
Email: [email protected] •
Web: www.viltrus.com
Use check box to Enable or Disable TCP/IP Server. By default TCP/IP socket life time is set to 120 seconds,
you can change if you need other time. Every COM client must have his one TCP port number.
Alert over Ethernet settings [Alerts>Configuration].
Select check box to Enable alert over Ethernet function. Enter destination Modbus TCP/IP servers IP
address and Port, change time values if you need and set data.
If you did everything correct, on every deviation, the alert message will be sent.
Information transfer algorithm:
Controller makes connection to server, over Ethernet TCP socket.
By Modbus TCP/IP protocol, using function nr. 16, deviation report will be sent to server. Report
contains:
Unique controller number;
Controller IP address;
Deviation identifier.
When answer into function nr. 16 is received, controller disconnects from TCP socket.
When server get’s deviation information, it initializes connection with controller and over Modbus
TCP/IP read all details about deviation
If connection with server was not established over the set (connection to server time) number of
tries, controller will try to connect after some time (see Pic 868).
If opening of socket is succeeded, but server do not answer into Modbus function 16, controller
repeat once and on failure, closes TCP socket. After set time (wait between trial times) amount
of time controller will try to send alert again. (see Pic 868).