PPE091A101 3BHE044481R01 ABB
PPE091A101 3BHE044481R01 ABB
PPE091A101 3BHE044481R01 ABB
EJA530A压力变送器用于测量液体、气体或蒸汽的液位、密度与压力，然后将其转变成4~20mADC的电流信号输出。EJA530A也可与BRAIN TM手操器、YHC4150、CENTUMCSTM、FieldMate、HART 375互相通讯，通过它们进行设定、监控等。EJA现场总线系列变送器的信号完全满足现场总线国际标准，实现了现场仪表之间真正的数字通讯。
现场总线的双向数字通讯使现场仪表与控制设备成为真正在线系统，超越了传统的模拟模式。它能精确传送各种数据如基于现场总线复合传感器功能的PV（处理量）及MV（操作量）。因此，基于现场总线通讯平台的EJA提供了更加灵活的通讯性能，并能节约成本（通过多点连接方式减少导线用量）。
is friendly, and the maintenance is simple;
2. Industria1″ system communication
Industrial” system uses international standard industrial bus. Field controller supports Profibus, FF, ModBus, Can, etc.
International standard fieldbus, Profibus is the most widely used open fieldbus international standard in the world, divided into FMS, DP and PA
Level 3, DP 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
