| 摘要 |
System for monitoring and controlling an industrial plant (1) comprising a plurality of processing stations (ST), which are grouped into a plurality of control areas (A). The system comprises:
- a plurality of PLC, each PLC associated to an area (A), for monitoring and/or control of the stations (ST) belong to the control area (A);
- a communication network (LAN) that connects the PLCs together; and
- at least one human-machine-interface unit comprising a portable computer (TAB) having a wireless transceiver (12). The system comprises means (AP, SRV) for enabling access of the portable computer (TAB) to the communication network (LAN) through the wireless transceiver (12), in such a way that the portable computer (TAB) can send monitoring and/or control commands to the PLCs. The system further comprises a plurality of identification devices (DK), wherein associated to each control area (A) is a respective identification device (DK) for detecting the presence of the portable computer (TAB) in a given control area (A). |
