Specifications

Terminal (Program Port/Telnet) Commands
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NI & DVX Central Controllers - WebConsole & Programming Guide
The administrator user account cannot be deleted or modified with the exception of its password. Only a
user with "Change Admin Password Access" rights can change the administrator password.
The NetLinx user account is created to be compatible with previous firmware versions.
The administrator group account cannot be deleted or modified.
The FTP Security and Admin Change Password Security are always enabled and cannot be disabled.
Telnet Diagnostics Commands
The following Telnet Diagnostics Commands provide visibility to remote Masters, in order to determine the current state
of operations, and are provided as diagnostic/troubleshooting tools.
While these commands are available for any user to execute, their output is interpretable primarily by an AMX Technical
Support Engineer.
Logging Out of a Terminal Session
Refer to the SET SECURITY PROFILE section on page 106 for information on
setting Security Profiles.
Telnet Diagnostics Commands
Command Description
REBOOT HEAP WATCH This command causes the Master to reboot into a Heap Watch mode, where every memory
allocation is tracked back to a task running in the Master. This option may be useful in cases
where a remote Master is indicating a continuous loss of memory. With Heap Watch enabled,
AMX Technical Support may be able to track exactly which task is losing the memory.
SPY
SPY STOP
The SPY and SPY STOP interfaces are provided by VxWorks; AMX has made it available to
the user.
• SPY lists out all of the tasks running in the Master and their CPU usage, refreshing every
10sec.
• SPY is very similar to a Windows Task Manager output.
This option may be useful in cases where a remote Master seems to be running but very
slowly. Enabling SPY might indicate if a specific task is using up the CPU. SPY can also be
useful in detecting infinite loops in NetLinx or Duet/Java code, since the Interpreter or Java
threads will show that they’re using all of the CPU.
PHYSICAL STATUS This command reports the current state of the Master’s Status, Output and Input LEDs, in
order to troubleshoot a remote Master. For example, if PHYSICAL STATUS indicates that the
Input LED always shows ‘1’ (or ON), it could indicate that the Master is being hammered by
incoming events.
MSG STATS This command collects messages statistics for the Interpreter over a 10 second period by
calculating the number of event messages that have been processed. This can be useful as a
debugging/diagnostics tool to determine if the NetLinx Interpreter is running and how many
messages it’s processing.
It is very important to execute the 'logout' command prior to disconnecting from a
Master.
Simply removing the RS-232 connector from the Program Port maintains your
logged-in status until you either return to logout via a new session or reboot the target
Master.