MLR 3G 2.0
Functions
10.11.9
Sandbox
The MLR 3G 2.0 provides a freely programmable sandbox. The sandbox is a kind of a vir-
tual machine, which runs on the MLR 3G 2.0. It is possible to start programs, collect data
and offer services in the sandbox, which do not exist in the system of the actual MLR 3G
2.0.
If the sandbox is enabled and the serial interface is reserved for the sandbox in addition,
the sandbox has priority, i.e. redundant communication device and serial Ethernet gate-
way are disabled.
Configuration with the web interface
In order to
enable the sandbox
, check in the menu "Systems" on the page
"Sandbox" the checkbox "Activate sandbox".
In order to configure the
password for the user "user"
, enter the desired
password into the field "New password" (the default password is "user"). The
user name itself cannot be changed. Permissible are only the characters 0 to 9,
a to z, A to Z and the special characters ! " # $ % : ' ( ) * + , - . / ; < = > ? @ [ ] \ ^ _
{ } | ~. The ampersand "&" is not permissible.
The file name of the currently
stored sandbox image
is indicated behind
"Stored sandbox image:" together with its MD5 checksum.
The file name of the currently
installed sandbox image
is indicated behind
"Installed sandbox image:" together with its MD5 checksum.
In order to
install a stored sandbox image
, the checkbox "Install stored sand-
box image" must be checked. The image will then be installed after storing
the settings with "OK".
If an installed sandbox image cannot be started any more (if important files
have been deleted unintentionally for example), a re-installation of the de-
fault image can recover the original state of the sandbox.
In order to
reserve the RS232 interface for the sandbox
, the checkbox "Reserve
RS232 interface for sandbox" must be checked. In this case, the functions of
the MLR 3G 2.0, which would also use the serial interface (e.g. serial Ethernet
Gateway), will be disabled automatically, because the serial interface can only
be assigned to one task exclusively.
In order to
upload a new sandbox image
, click in the section "Upload new
sandbox image" on the "Browse..." button. Then, select in the "Upload file"
window the desired image file on the respective data carrier and click on the
"Open" button. Click on "OK" then to upload the file.
Save your settings
by clicking "OK".
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