Implementation of Virtual I/O Module in Ethernet Communication Interface Module of DCS
In order to reduce the repeated development of hardware modules,on the basis of retaining the original DCS software and hardware system architecture,different I/O modules are virtualized on the hardware of the ethernet communication interface modules.The virtual I/O module and the hard point I/O module have the same input,output,and parameter attributes,and the configuration mode and product format are the same.Different virtual I/O modules,such as Modbus TCP virtual I/O modules and GOOSE virtual I/O modules,can be configured on different virtual I/O slots on the same ethernet communication module,so as to implement different communication functions on the same hardware.The use of virtual I/O modules,on the one hand,reduces the types of hardware modules of the DCS system and simplifies spare parts.On the other hand,it also improves the flexibility and convenience of communication expansion.
virtual I/O moduleDCS systemethernet communication interface moduleModbus TCPGOOSE
NETL
NSTL
万方数据
维普
