In this steel-making control system project,
we design use Germany siemens PLC, the communication, the labor
control software and the transmission control product and KYLAND (east
earth telecommunication) the industry optical communication product
high grade compose, the high performance conformity control system,
completes the entire project the process and drives the control duty.
Among them, has used five set of S7-400 PLC, 15 set of S7-300
PLC, the nearly hundred set of MASTERDRIVER series transmission
product (power scope from several KW to several hundred KW).
---- On the position supervisory system installs the labor by
the industry control computer to control software, completes the
overall system the process data acquisition, the running status
surveillance, system work and so on device control and other industry
data gathering, report form production, printing, data backup.
The PLC system and between the transmission control system uses
is siemens's PROFIBUS-DP main line communication way, completes the
control signal and the data high speed transmission and the exchange.
At the same time, various subsystems PLC has the full holding
wire connection with this subsystem equipment between, when the
communication system appears the breakdown, the subsystem may
independently move, guarantee system security and reliability.
Correspondence level: Uses the industry level
redundant optical communication network technology, simultaneously
uses the TCP/IP network correspondence agreement, its network
convenience is flexible. The transformer substation level
equipment each between insulation protection observation and control
installment and all is loaded with KYLAND (east earth
telecommunication) KIEN 9,000 and KIEN 6,000 industries ethernets
switchboard. The industry ether network connection,
connects transformer substation all units the common control network,
greatly enhanced the communication speed and the overall system
reliability. |
