ALSTOM IR139
ALSTOM IR139
ALSTOM IR139
MG8E磁氧分析仪利用磁铁吸引氧气的特性，可用于测量氧气浓度。磁氧分析仪与氧化锆氧分析仪不同之处在于，后者不能测量易燃混合气体的氧气浓度，而且即使浓度很低，也能够实现高精度测量。
通过适当的采样系统，MG8E防爆磁氧分析仪还可以用于高温或者高压等各种工艺条件下的氧气浓度测量。
MG8E防爆磁氧分析仪的传感器具有全新的结构设计，其开发基础是磁通量与氧流量成正比的原理，这一原理是经过长期现场应用证明的。转换器基于微处理器，操作性强且可靠性高。
hrough 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 options. Each PS allows to insert 4 fieldbus interface cards (the card type can be different),
Each card is connected to 1 field bus to collect process data and diagnostic information from the bus, the interface card is easy to replace and plug and play
(Plug & Play), and can be plugged and unplugged.
The field controller PS has the following characteristics:
o
Flexible: supports all international standard open fieldbuses and can be mixed
Simultaneous connection of 4 high-speed fieldbuses (max. 12 MBd)
Simple engineering: configuration, commissioning and diagnostics using only the same tool CBF (Control Build F) software
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