这个术语用于描述AC800F控制器(现场控制器)和机架式控制器。一个过程站可以设计成冗余配
置和非冗余配置。
AC800F :
这个术语用于描述AC800F现场控制器这种类型的过程站。一个冗余的过程站包含了2个
AC800F控制器。
机架式过程站:
这个术语用于描述机架式类型的过程站。一个冗余的过程站包含2个机架式CPU。
这个术语用于描述一个单独的,非冗余的过程站。
在现代自动化系统投资中,由于硬件设备部
分只占用整个系统中较少的成本,则编写工程应用
软件的成本就变得越来越重要。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。
对于现场设备、过程控制站和操作员站,
Class 1 div 2
The PS supports the following types of fieldbus standards:
Profibus DP,up to 12 MBd
Modbus RTU,1200 to 38. 4KBd
Industrial” CAN I/0 Bus
o
Open CAN -Bus,up to 1 MBd
o
Foundation Fieldbus H1
up to 31. 25KBd
Foundation Fieldbus H2 (fast Ethernet)
HART
The system allows different types of field buses to be mixed and run simultaneously in the same field controller PS.
Industrial “field control explosion (AC800F) consists of the following components:
Basic unit pm802f
Power supply sa801f/sd802f
o
Ethernet network card ei801f/ei802f/ei803f
o
Fieldbus interface card fi810f/fi820f/fi830f
Various accessories
The main components of the field controller PS are described below.
Basic unit pm802f
The basic unit pm802f is composed of a metal rack and a CPU motherboard. It periodically scans the data from the
The signals of the field bus sensors are processed according to the control application program configured by the user, and then the calculation results are passed
The fieldbus interface card returns the corresponding fieldbus actuator.
Two field controllers can realize controller 1:1 redundancy, and undisturbed switching between master and slave PS. Two on each PS
Ethernet network card, the second network card is used to connect the system network diginets), and the second network cards can be interconnected with each other to form a special
Redundant communication link (diginetr) to ensure information synchronization between master and slave PS. — However, the master PS fails, and the slave PS can quickly and undisturbed connect the replacement worker
Make. All inputs and outputs also support redundant operation.
The data communication between the field process controller PS. operating station 0s and the engineer station es is completed by the system network (diginets), which is inserted
The – Ethernet network card on the PS basic unit provides the interface between PS and diginets. ES. Hardware configuration and PS
The user program is downloaded to the PS CPU through diginets and the first network