GE Fanuc IC698CRE030 Pentium-M冗余CPU除了有双RJ-45以太网接口外,还有一个用于工作站管理的RS-232串口和另外2个用于RS-232通信和RS-485通信的串口。这三个串口都是隔离的。RS-232通信端口具有用于端口活动状态的指示灯LED,其连接器类型为母9针D-sub连接器。该端口也称为DCE或数据通信设备端口,只需要直通电缆进行连接。IC698CRE030 CPU的RS-485通信端口也是DCE端口,但需要屏蔽线缆连接。站管理器端口使用直通电缆进行RS-232连接,就像普通的RS-232电缆一样。
IC698CRE030
The IC698CRE030 CPU is a Pentium-M redundancy CPU that is rated at 600 megahertz. It is manufactured by GE Fanuc in the GE RX7i PACSystem series of programmable logic controller components. The IC698CRE030 CPU can be installed in a VME64 backplane in an RX7i PLC. This device has a built-in Ethernet port that is rated at 10 or 100 mb of communication speed and that consists of dual ports that are both RJ-45 ports. This Etherent port has an auto-sensing switch and it can be used for online monitoring and for uploading and downloading data. The Ethernet interface on the IC698CRE030 CPU allows the users to monitor the PLC from a web browser and it does not need hubs or rack switches in order to operate properly. The IC698CRE030 redundancy CPU features 64 MB of user memory.
In addition to the dual RJ-45 Ethernet port, the GE Fanuc IC698CRE030 Pentium-M redundancy CPU also has another Ethernet port which is an RS-232 serial port used for station management and 2 other serial ports that are used for RS-232 communication and RS-485 communication. All 3 of these serial ports are isolated. The RS-232 communication port has an indicator LED for the status of the port’s activity and its connector type is a female 9-pin D-sub connector. This port is also known as a DCE or a Data Communications Equipment port that only requires a straight-through cable to make connections. The RS-485 communication port on the IC698CRE030 CPU is also a DCE port, but it needs shielded cables for its connections. The station manager port uses straight-through cable for RS-232 connections just like the ordinary RS-232 cable.