通常来讲，一个自
动化项目的工程应用软件费用约占到了整个项目的
50%左右，这不难看出，成本结构的迁移给用户创
造了优化项目投资的机会，所以，必须从工程编程
一开始就要考虑降低费用!
这就是我们开发Freelance 800F系统的目的:
保持硬件价格与那些可编程逻辑控制器一致的情况
下，通过减少用户工程费用来提高成本效率。
Freelance 800F过 程控制系统如何帮助用户减
少工程费用?
●通过使用一个完整的工程工具(Control Builder
F)来配置组态整个控制系统，包括自动化功
能、操作员界面显示和记录，以及组态现场总线.
设备(PROFIBUS， FOUNDATION Fieldbus ,
HART等等)和设备参数设定。
●在过程控制站和操作员站之间自动生成全局的数
据通信。
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
