Mitsubishi MELSEC-Q Series User Manual page 148

4
FUNCTIONS
(3) Precautions for Telnet function
4
- 75 4.16 Telnet Function
(a) Connection of Telnet tool and C Controller module
Connect the Telnet tool to the C Controller module on a one-to-one basis.
Connection from multiple Telnet tools to the same C Controller module is not
allowed.
(b) When executing Shell command from Telnet tool
The Shell command input with the Telnet tool of the development environment
(personal computer) operates on the task of Priority 2 in the C Controller module.
Depending on the input command (e.g. a command that occupies CPU
processing), a system error or stop (such as a system watchdog timer error) may
occur in the C Controller module.
When using the Telnet function, pay careful attention to input commands.
(c) Command execution without argument specification
If a command having an argument is executed with no argument specified, it
means that the command is executed with 0 specified as the argument.
Depending on the executed command, a system error or stop (such as a system
watchdog timer error) may occur in the C Controller module.
Before executing a command, be sure to confirm the specifications and specified
argument of the command.
Example) Do not execute the "close" command without any argument specified.
Doing so will close the resources reserved in the VxWorks system.
(d) Precautions for program debugging
Refer to Section 10.2.6 for precautions for program debugging with the Telnet
function.