1785-L40C AB
1785-L40C AB
1785-L40C AB
10 kV母线贯穿式电流互感器
LMZB1-10
LMZBJ1-10/250 (II)
LMZBJ1-10/325 (I)
10 kV带触头盒复合式电流互感器
LMZ5-10 (II)
LMZ5-10 (III)
LMZ5-10 (V)
10 kV代电流互感器
ZJ10-150b
ZJ10-185b
35 kV支柱式电流互感器
LZZBJ9-36/250W3b
LZZBJ9-36/250W3h
LZZBJ9-36/250W3l
LZZBJ9-36/250 (II)
35 kV代电流互感器
LZZBJ9-36-250W3b (II)
LZZBJ9-36-250W3h (II)
LZZBJ9-36-250W3l (II)
剩余（零序）电流互感器
LMZ165-50-70
LMZ215-80-120
LMZ255-80-160
LXZ-Φ110
LXZ-Φ200
LMBF-0.5 (300×500)
LMBF-0.5 (450×650)
LMZC-0.5
LXZK-Φ120
LXZK-Φ200
communication rate can be as high as 12Mb. Profibus is used to connect intelligent
devices such as distributed I/0 stations and field bus instruments.
Communication
between the process station, operator station and engineering station takes place via
the system bus DigiNetS (Industrial Ethernet). user
Different transmission media (RJ45
twisted pair, thin, thick or fiber optic cables and mixed media) and network topology
can be selected for the system bus.
Simple layout, due to the use of TCP/IP protocol,
the system can also use the public telephone network (dial-up mode) or satellite to
achieve ultra-long-distance communication.
Subsystems such as PLC communicate with the
Industrial” system through the ModBus protocol interface. The system also supports
IEC870-5 over-control protocol.
discussion.
The Flash EPROM inside the PS provides more
than 220 functional modules (control algorithm subroutines), in addition to the basic
ones specified in the IEC 61131 3 standard
In addition to this content, many powerful
and rigorously tested function blocks from actual engineering applications have been
expanded. any complex control
The scheme can be realized by the combination of these
function blocks.
The function blocks provided by the system mainly include the following
categories:
o
Analog processing
o
digital processing
loop regulation
Logical sequence
control
c
logic operation
Monitoring function
Collection function.
c
arithmetic operations
c
TCP/IP protocol communication interface
Modbus protocol communication interface
1EC870-5
protocol communication interface (Telecontrol)
4.2 Field Controller PS
Industrial” field
controller PS is a special process control station, which is embedded with field bus
communication interface for users to use
Fieldbus technology offers very flexible
