Some issue is causing the communications link to fail between the development computer and the target computer.
The development computer communicates with the target computer by using an Ethernet communications link. Various software and hardware configuration issues can interfere with this link.
To test the communication link between the development and target computers, use these MATLAB® commands from the development computer:
slrtpingtarget — The
slrtpingtarget command performs a basic communication
check between the development and target computers. This command returns
success only if the
Real-Time™ kernel is loaded and running and the development and target computers are linked. Use this command for a quick check of the communication
between the development and target computers.
slrttest — The
performs a series of tests on your
Real-Time system. These tests range from performing a basic link check to
building and running real-time applications. At the end of each test, the
command returns an
OK or failure message. If the test is
inappropriate for your setup, the command returns a
message. Use this command for a thorough check of your
Link errors can occur if the target computer is running an old Simulink Real-Time boot kernel that is not synchronized with the Simulink Real-Time release installed on the development computer. Recreate the target boot kernel for each new release.
Link errors can occur if you have an active firewall in your system. To work around this issue, add the MATLAB interface to the firewall exception list.
Link errors can occur if multiple Ethernet cards or chips are installed in the target computer. See Troubleshoot Communication Timeout with Target Computers and Multiple Ethernet Cards.