Communication Drivers
In this group of settings you will need to set, for the selected station, the configurations inherent in the TCP-IP Ethernet access parameters.
Server Address
Here you must specify the IP address or the name of the server or the network device to be connected to.
Examples: 192.168.0.1; localhost; server1
Server Port
This is used to insert the number of the TCP port of the server or device to be connected to. This value completes the device's IP address. For instance, the 502 port is always used for the TCP-IP Modbus (as established by the protocol), but when dealing with other devices please refer to their documentation.
This is used to insert the backup server IP address or name. If this address is set, the driver will try to connect to the backup server when unable to communicate with the 'primary' server. This happens in a redundancy situation at driver level. If communication with the backup server is interrupted, the driver will try to connect to the primary server again and so forth.
This field can contain the name of one Serve or a list of Servers separated b the ";" character. The Server list allows more than one Backup Server for the Driver to manage in cyclic mode so that if one Server should fail the Driver can use the next on the list. When the Driver runs out of backup servers to use, it will start again with the Main Server.
The time entered here, in milliseconds, is the time which passes between a communication error verified on one server and an attempt to connect to the other one.
Local Bound Address
The local IP address is entered in this field, being the one from the PC's ethernet card you intend to use for communicating. Normally this property is left empty and used only when more than one ethernet card has been installed on the PC. The system will use the operating system's default address, when left empty.
Local Bound Port
The local TCP port address, referring to the PC's ethernet card which you intend to use for communicating, is entered in this field. Usually this field is left empty, unless required by the protocol or device being used.
Leaving the default value, the operating system will decide which port to use.
Use Ping
When this option is enabled, the driver will use a ICMP protocol "ping" message to test for the existence of a Backup Server before attempting to connect to it. This permits faster connections to the Backup Server in the event of very long Server lists. The timeout for responding to the "ping" message corresponds to the value set in the station's "Timeouts\Rx Timeout" field.
