除了ServiceShell，还有个工具叫超级终端HyperTerminal
以前的Trendsetter旧机是可以通过COM口来连接的
但命令都一样
输入"laser" 或者"L”
>> laser
*** State message: Head command (72)
Thermal head type: 40W
Write laser state: Off
Laser mode: closed-loop,(original mode)
Setpoint power: 11.00 W
Power: 0.00 W
Current: 0.00 A
Diode temp: 29.5 C
Laser on time: 1844.15 hours