西门子S7-1200通信教程 - 图文 

www.plcworld.cn“库”任务选项卡中的USS 功能块概述开放式用户通信练习PtP 通讯??概述??配置??模块??Modbus??USS-Protokoll“库”任务栏USS 通信功能块Page 46/47CommunicationFor internal use only / ?Siemens AG 2009. All Rights Reserved.Industry Sectorwww.plcworld.cn利用“USS_PORT”数据块实现PLC到驱动的通信概述OB周期中断[e.g. 120ms]开放式用户通信练习PtP 通讯??概述??配置??模块??Modbus??USS-Protokoll通信模块的符号选择FCDB1(Drive) 1(Drive) 2(Drive) 3(Drive) 4…(Drive) 16For internal use only / ?Siemens AG 2009. All Rights Reserved.Industry SectorPage 47/47Communicationwww.plcworld.cn与驱动数据块“USS_DRV”的数据交换概述OBMain-OB (OB1)开放式用户通信练习PtP 通讯??概述??配置??模块??Modbus??USS-ProtokollDrive1===FBUSS_DRV_DB(Drive) 1FB(Drive) 2Drive2(Drive) 3FBDrive3Page 48/47CommunicationFor internal use only / ?Siemens AG 2009. All Rights Reserved.Industry Sectorwww.plcworld.cnThank you for your attention!谢谢！For internal use only / ?Siemens AG 2009. All Rights Reserved.www.plcworld.cnThank you for your attention!I IA AS CS 2 FA Phone: +49 (911) 895-4646E-Mail: sss.simatic@siemens.comFor internal use only / ?Siemens AG 2009. All Rights Reserved.