| 摘要 |
A System Apparatus of Programmable Logic Controller (PLC) 100 containing System Software of Embedded Intelligent Web Server 200 uses a service-based application method to administrate and manage of control and system related services for controlling machines, equipment and manufacturing processes globally. The main component of System Apparatus of Programmable Logic Controller 100 is Central Processing Unit 110 which is connected to an Apparatus Memory 120, a Wireline Connection Port 140, a Wireless Transceiver Port 150, a plurality of Input Interface Module 160, and a plurality of Output Interface Module 170. Input Interface Module 160 is connected to a plurality of Field Input Device 180, and Output Interface Module 170 is connected to a plurality of Field Output Device 190. System Apparatus of Programmable Logic Controller 100 is also connected by a Power Supply 130 for power source. System Software of Embedded Intelligent Web Server 200 resides in Central Processing Unit 100 and is comprised of a Real-time Operation System (RTOS) 210, a Runtime Language Executor 220, a Service Central Controller 230. Service Central Controller 230 is comprised of a Service Administrator 231, a Service Shared Memory 232, a plurality of Grouped and Prioritized Input Service 241, a plurality of Grouped and Prioritized Output Service 242, a plurality of Intelligent Agent Monitoring Service 243, a HTTP Service 251, a Wireline Data Service 252, a Wireless Data Service 253, and a Store and Forward Message Service 254. Service Central Controller 230 is responsible for registering, installing, activating, deactivating, and uninstalling all control and system related services of PLC operations dynamically at runtime. Each control or system service, although executed independently, can be called by other services for accomplishing complex or collaborating tasks.
|
