IS200BICHH1A
IS200BICHH1A
IS200BICHH1A
在WinCC中如何使用输入／输出域实现带确认提示的输入数据操作。
在实际的项目应用中，某些关键数据的输入需要提示操作人员确认无误后才能进行。如当在输入／输出域中输入数值99并回车后，数据并不立即输入到变量里，而是弹出一个确认的信息窗口。这时候如果选择“是”那么数据将输入到相应的变量，如果选择“否”相应的变量会保持原来的值不变。以WinCC 7．O SP1为例介绍搭建服务器客户机结构的前提条件以及具体步骤，并列举了一些在搭建过程中的常见问题。
WinCC客户机／服务器结构（Client/Server结构，以下简称C/S结构）是一种在网络基础上，以数据库管理为后援，以微机为工作站的系统结构。这种结构将任务合理分配到客户机端和服务器端，降低了系统的通讯开销，充分的利用了两端硬件环境优势。WinCC可组态含有多个客户机和服务器的C/S系统，从而更有效地操作和监控大型系统，通过在多个服务器中分配操作和监控任务，平衡了服务器的使用率，从而使性能得到更大的改善。
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 algorithm subroutines), in addition to the basic ones specified in the IEC 61131 3 standard
In addition to this content, many powerful and rigorously tested function blocks from actual engineering applications have been expanded. any complex control
The scheme can be realized by the combination of these function blocks.
The function blocks provided by the system mainly include the following categories:
o
Analog processing
o
digital processing
loop regulation
Logical sequence control
c
logic operation
Monitoring function
Collection function.
c
arithmetic operations
c
TCP/IP protocol communication interface
Modbus protocol communication interface
1EC870-5 protocol communication interface (Telecontrol)
4.2 Field Controller PS
Industrial” field controller PS is a special process control station, which is embedded with field bus communication interface for users to use
Fieldbus technology offers very flexible options. Each PS allows to insert 4 fieldbus interface cards (the card type can be different),
Each card is connected to 1 field bus to collect process data and diagnostic information from the bus, the interface card is easy to replace and plug and play
(Plug & Play), and can be plugged and unplugged.
The field controller PS has the following characteristics:
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Flexible: supports all international standard open fieldbuses and can be mixed
Simultaneous connection of 4 high-speed fieldbuses (max. 12 MBd)
Simple engineering: configuration, commissioning and diagnostics using only the same tool CBF (Control Build F) software
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Access to all information from the field including equipment management information
Global database of fieldbus devices, control levels and HMI (Human Machine Interface) usage systems
Module identification with production operating parameters
c
complete self-diagnosis
Compact and robust design
Front Panel Wiring
DIN rail (U-shaped) installation well can be directly wall mounted, simple and convenient
o
Allowable operating ambient temperature…60 C, with automatic temperature monitoring
o
EMC (Electromagnetic Compatibility) according to EN50082
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Certifications: CE, NAMUR, CSA, CSA-NRT
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