PU515A
PU515A
PU515A
介绍了第三方的PROFIBUS设备加入SIEMENS PROBUS网络的使用方法。包括硬件的组态、程序的编写。
怎样加入支持PROFIBUS-DP协议的第三方设备
既然PROFIBUS-DP是一种通讯标准，一些符合PROFIBUS-DP规约的第三方设备也可以加入到PROFIBUS网上作为主站和从站，绝大部分设备都可作为从站，只有一小部分设备可作为主站，第三方设备做主站，组态软件需要第三方提供。第三方设备作从站，如果主站是S7设备，组态软件是STEP7和SIMATIC NET，如果是S5设备，组态软件是COM PROFIBUS或COM5431。支持PROFIBUS-DP的从站设备都会有GSD文件，GSD文件是对设备一般的描述，通常以GSD或GSE文件名出现，将此GSD文件加入到主站组态软件中后就可以组态从站的通讯接口。在这里主要介绍S7设备做主站的应用，STEP7作为组态软件加入PROFIBUS -DP从站设备，现以S7-400 CPU416-2DP做主站，S7-200 PROFIBUS接口模块EM277作从站为例，详细介绍怎样导入GSD文件，组态从站通讯接口区进而建立通讯。
Fieldbus,
HART, etc.) and device parameter settings.
● Automatic generation of global data between the process control station and the operator station
According to communication.
For field devices, process control stations and operator stations, a unified global database is used for the entire control system, thereby reducing
cost and time investment in establishing data communication and interactive access.
And ensure the consistency of data throughout the system.
●Provide system-wide unified inspection of user applications, overriding
from process control stations, operator stations to intelligent field devices, including
Including the integrity and consistency check of the user program.
●The programming language strictly complies with the international standard of IEC61131-3, and has
There are high-performance graphics editing functions:
– Function Block Diagram (FBD)
-Ladder Diagram (LD)
– Instruction List (IL)
– Sequence Control Chart (SFC)
. Structured Text (ST)
●Extensive function block library, user-defined function blocks can also be added
Added to it, the macro library and graphic symbols can be customized for the user.
Blocks can create graphics and operator panels.
●Any standard can be integrated by means of GSD file import
PROFIBUS-DP and PA devices, and through user-defined pairing
dialog box to design the configuration window for these devices.
●Profibus field controller can be integrated through FDT/DTM technology
line equipment
system structure
The Freelance 800F process control system is divided into operator levels
and process control level. The operator level contains controls for operation and display.
Archiving and logging, trending and alarming functions. Controller executes open loop
and closed loop control function.
Freelance 800F DigiVis Operator Level
DigiVis operator stations use PC hardware, either standard commercial
Business PCs can also be industrial-grade PCs and run on Micro-
under soft Windows
