Process automation system
First Claim
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1. A process automation system, comprising:
- first terminals on a first operating and monitoring level monitoring a process and coupled to a first transceiver device;
first local operator automation devices on a first subordinate automation level coupled to a second transceiver device via a process bus; and
a host computer coupled to a third transceiver device, the third transceiver device communicating with the first transceiver device and the second transceiver device over a data transfer medium, data being exchanged between the first operating and monitoring level and the first subordinate automation level via the host computer, whereby the process bus is not linked to said first terminals.
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Abstract
A process automation system includes terminals for operating and monitoring purposes, automation devices for executing control functions, and a host computer. Communication between the terminals and the automation devices is exclusively established via the host computer. The host computer may be installed remotely, in a computing center.
50 Citations
17 Claims
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1. A process automation system, comprising:
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first terminals on a first operating and monitoring level monitoring a process and coupled to a first transceiver device;
first local operator automation devices on a first subordinate automation level coupled to a second transceiver device via a process bus; and
a host computer coupled to a third transceiver device, the third transceiver device communicating with the first transceiver device and the second transceiver device over a data transfer medium, data being exchanged between the first operating and monitoring level and the first subordinate automation level via the host computer, whereby the process bus is not linked to said first terminals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification