Functions
MLR 3G 2.0
10.8
Serial Ethernet gateway
10.8.1
Setting up the Serial Ethernet Gateway
The serial Ethernet gateway enables the addressing of serial end devices from the local
network of the MLR 3G 2.0 or from a remote network, which are connected to the serial
interface of the MLR 3G 2.0. The data which is sent to a configurable network port of the
MLR 3G 2.0 is output at the serial interface of the MLR 3G 2.0. The serial Ethernet gate-
way connection can either be maintained permanently (leased line mode) or set-up if
required (connection on request).
If the serial Ethernet gateway is enabled, a redundant communication device cannot be
used at the serial interface. If the sandbox is enabled and the serial interface is reserved
for the sandbox in addition, the sandbox has priority, i.e. redundant communication de-
vice and serial Ethernet gateway are disabled.
Configuration with the web interface
In order to enable the
serial Ethernet gateway
, check in the menu "Serial
Ethernet" on the page "Serial Ethernet" the checkbox "Activate serial Ethernet
gateway".
In order to
display the current state of the serial Ethernet gateway
, click on
the link "Serial Ethernet gateway current state".
In order to
display the log of the serial Ethernet gateway
, click on the link "Se-
rial Ethernet gateway log".
In order to
configure the display of the serial Ethernet gateway log
, enter on
the page "Serial Ethernet gateway log" into the field "Refresh after“ the up-
date interval of the log in seconds as well as into the field "show last … lines"
the number of lines to be displayed and select "OK".
In order to configure the
operation mode of the serial Ethernet gateway
, se-
lect either the radio button "Leased line mode" or "Connection on request".
In order to use an
IPT connection
, check the checkbox "Use IPT". In this case,
the IPT slave must also be configured and enabled in the menu "Server ser-
vices" on the page "IPT".
In order to increase the
time between connection attempts
in leased line
mode, check the checkbox "increase reconnection interval". In this case, the
interval between the connection attempts will increase (1, 5, 15, 30, 60 min-
utes). Otherwise, the MLR 3G 2.0 will try to establish a connection every min-
ute, if this is interrupted.
In order to enable
incoming connections
in "Connection on request" mode as
well, check the checkbox "Accept incoming connection" and enter the port, on
which the serial Ethernet gateway reacts on incoming connections, into the
entry field "TCP port" (it is possible to allow incoming and outgoing connec-
tions at the same time). If an incoming or outgoing connection is active in
this case, the other is not available until the active connection is closed.
In order to specify that the connection is only accepted, if an
UDP authentica-
tion of an INSYS VCom
has taken place, check in the "VCom authentication"
section the checkbox "incoming". An existing connection will be terminated
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