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    Command: Configure the Local Gateway

    Function: The command opens the Gateway Configuration dialog where you can configure the block drivers for the local gateway – an alternative to manually editing the Gateway.cfg configuration file.

    Call: Context menu when a gateway entry is selected in the device editor in the Communication Settings dialog

    Important

    A correct configuration of the gateway requires detailed knowledge. If you have any doubts, do not change the default configuration settings.

    Tip

    To enable the Edge Gateway functionality and to connect the Edge Gateway to the CODESYS Automation Server, you can use the CODESYS Automation Server Connector or the CODESYS Service Tool. For more information about this, see the help for the CODESYS Automation Server in the chapter "Connecting an Edge Gateway to the Server and Entering PLCs". Note also the "Security Notices for the Edge Gateway" in the help.

    Dialog: Gateway Configuration

    The configuration tree displayed in the dialog corresponds to the description currently valid gateway.cfg configuration file. It displays the parameters with the current settings for the interfaces involved. Changes to the configuration in the dialog, confirmed by clicking OK result in the direct update of the configuration file.

    Tip

    After the gateway gateway.cfg configuration file has been changed, the gateway has to be restarted in order for the changes to be applied.

    Add

    Menu with commands for adding interfaces and settings

    The commands are also available in the context menu of the dialog. The selection depends on which entry is selected and which settings have already been added:

    Add Interface: Select an interface for communication via the gateway. It is inserted at the top level of the tree. See the table below for the possible block driver interfaces.

    Add Configuration Setting: Select a setting for the selected interface. It is inserted below the interface in the tree. To edit the value of the setting, double-click in the Setting column to open an editing field. See the table below for the possible settings per block driver interface.

    Delete

    Deletes the selected configuration setting

    Move Up, Move Down

    Moves the selected configuration entry one position up or down

    Table 126. Possible block driver interfaces

    COM Port

    Serial port on the device, for example for data exchange according to the RS232 standard on a COM port intended for this purpose

    Possible configuration settings:

    Name: Symbolic only

    Port: Physical serial port which is used for this interface, for example COM 5 on a Windows computer

    Baud rate: 2400, 4800, 9600, 19200, 38400, 57600, 115200

    Activate auto addressing: _cds_icon_checked.png (default = _cds_icon_option_deactivated.png)

    The Local address setting is evaluated. Both devices, which communicate via the serial port, will independently negotiate their addresses before they begin exchanging messages. If the addresses of both devices are the same, then they are negotiated again. This setting is useful when the local addresses cannot be set explicitly, for example for devices which are physically separated.

    Local address: Evaluated only when Enable auto addressing is activated

    Default = actual value for port

    Shared Memory

    Shared memory driver

    Possible settings:

    Name: Symbolic only

    Forced address: Default = -1 (= no forced address)

    Example: 42 means that the driver has to use the fixed address defined here and that addresses are assigned freely in the range 0–255. This setting can be useful when more than one shared memory driver is activated in the configuration.

    Ethernet UDP/IP

    Ethernet interface for data exchange according to the "User Datagram Protocol"

    Possible settings:

    Name: Symbolic only

    Port index: Port number for the communication

    Port indices are in the range 0–3.

    They are mapped to the following Ethernet port: 1740–1743.

    IP address: Default = 127.0.0.1

    This setting can be useful to explicitly set an interface when the device has multiple network interfaces.

    Example: 127.0.0.1 stands for some local network interface, also known as localhost. Every other address (for example, 10.27.7.72) represents a real IP address which has to be available on the device.

    Network mask: Default = 255.255.255.0

    Example: 255.255.252.0

    This setting can be useful to explicitly set an interface when the device has multiple network interfaces.

    PPP address: Default = 127.0.0.1

    Example: 10.13.42.240

    Establishes a logical point-to-point connection between the UDP interface and the node named with the address specified here

    Causes the UDP interface to communicate exclusively with this node and no broadcasts to be sent in the network

    Ethernet TCP/IP

    Ethernet interface for data exchange according to the "Transmission Control Protocol"

    Possible settings:

    Name, Port, IP address: See Ethernet UDP/IP above

    Inactivity timeout: Default = 0

    This setting defines the time span (in seconds) after which the TCP connections are closed when data is no longer exchanged.

    CAN Client

    Name: Symbolic only

    A description for the other settings can be found directly in the dialog.

    USB Port

    Name: Symbolic only

    A description for the other settings can be found directly in the dialog.



    For more information, see: Tab: Communication Settings