A, refers to different
1, industrial control machine: is a bus structure, the production process and electromechanical equipment, process equipment for detection and control of the tool in general.
2, the host computer: refers to the computer can be directly issued control commands.
Two, different characteristics
1, industrial control machine: chassis using steel structure, has a high anti-magnetic, dust, impact resistance. The chassis has a special baseboard, the baseboard has PCI and ISA slots. There is a specialized power supply in the chassis, and the power supply has a strong anti-interference ability.
2, the upper computer: when using the computer and PLC communication, not only can be used in the traditional D form of serial communication, but also can be used more suitable for industrial control of the two-wire PROFIBUS-DP communication.
Three, the application of different
1, industrial control machine: control site, road and bridge control and toll system, medical instruments, environmental protection monitoring, communication security, intelligent traffic control system, building monitoring and security, voice call center, queuing machine, POS counter cash register.
2, the upper computer: the upper computer issued by the command first to the lower computer, the lower computer and then according to this command is interpreted into the corresponding timing signals directly control the corresponding equipment.
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