I don't know, but according to my mind, the reason is that the system has a little different than the FGS System SIS, do require a higher level of security over the system will Alarm setup FGS before going on to the function block, the SIS system will setup alarm after the block function block, after having compared the value Alarm put in chanel's signal.
đang được dịch, vui lòng đợi..
