PFEA113-20 3BSE028144R0020工控模块备件
接地电位
所有机架必须处于相同的接地电位（最多8个机架）。注意串行终端插头（IC697ACC702），正常运行需要强制空气冷却。请参阅正文。**机架风扇组件IC697ACC721/724可直接安装在机架上。N B C或图3.系统配置，串行连接至编程器编程器连接，串行端口CPX 772有三个独立的板载串行端口。这些端口由模块正面的连接器访问，用于与编程计算机或其他串行设备的串行接口。从固件版本8.00开始，对端口1和端口2添加了对程序加载/存储操作和数据报的支持。此外，在固件版本8.0中，将Break Free SNP添加为端口1和2的默认协议。
支持的协议
有关详细信息，请参阅模块随附的重要产品信息表。支持的协议端口1端口2端口3 SNP（从属）是是是断开SNP（从）是是否SNPX否否RTU否否端口1（顶级端口）与RS-232兼容。它有一个6针母型RJ-11连接器，外观与电话和调制解调器常用的模块化插孔相似（虽然更大）。表1.端口1 RS-232信号引脚号信号名称描述1*CTS清除发送2 TXD发送数据3 0V信号接地4 0V信号地5 RXD接收数据6 RTS请求发送*引脚1位于连接器顶部，从模块正面看。端口2，即中心端口，与RS-485兼容，并与光耦隔离。端口2有一个15针内螺纹D接头。
Ground potential
All racks must be at the same ground potential (up to 8 racks). Pay attention to the serial terminal plug (IC697ACC702). Forced air cooling is required for normal operation. Please refer to the text** The rack fan assembly IC697ACC721/724 can be directly installed on the rack. NBC or Figure 3. System configuration, serial connection to programmer programmer connection, serial port CPX 772 has three independent on-board serial ports. These ports are accessed by connectors on the front of the module for serial interfaces with programming computers or other serial devices. Starting from firmware version 8.00, support for program load/store operations and datagrams has been added to port 1 and port 2. In addition, in firmware version 8.0, Break Free SNP was added as the default protocol for ports 1 and 2.
Supported Protocols
For more information, see the Important Product Information table that comes with the module. Supported protocol port 1, port 2, port 3, SNP (slave) Yes Yes No SNP (slave) Yes No SNPX No RTU No Port 1 (top-level port) is compatible with RS-232. It has a 6-pin female RJ-11 connector that looks similar (though larger) to the modular jack commonly used for phones and modems. Table 1. Port 1 RS-232 signal pin number Signal name description 1 * CTS clear sending 2 TXD sending data 3 0V signal grounding 4 0V signal grounding 5 RXD receiving data 6 RTS request sending * Pin 1 is on the top of the connector, viewed from the front of the module. Port 2, namely the central port, is compatible with RS-485 and isolated from optocoupler. Port 2 has a 15 pin female D connector.
