S800、S900是用于过程控制站的分布式I/0，它们通过Prof ibusDP现场总线与其所属的控制器
通信，既可以安装在控制室，也可以安装在现场以尽量接近现场变送器和执行器，从而 节省电缆并
减少安装费用。
S800 1/0及s900 I/0 具有以下优点:
●灵活性:对安装数量没有限制，可小数量安装，也可大量安装，可以安装在室内，也可安装在室
外，可以安装在墙上，也可安装在机柜中。
●模块化:可一步一步扩展，不会因自身限制而影响系统扩展。
●经济性:节省硬件，电缆，从而节省安装及维护费用.
●可靠性:因其自诊断及冗余等特性，可平滑的实现自动切换。
S800/S900型1/0 采用模块化设计，DIN 标准导轨式安装，由于对空间以及环境要求不苛刻，
S800/S900型I/0尤其适用于安装在分散的场合，并且对处理信号几乎没有要求，从而现场仪表和设
备信号可以直接接线到S800/S900 I/0 站。
based on ISO 9000/EN 29000 was subsequently achieved
Certification.
However, the Freelance 800F is more than technical excellence, I
We have also spent a lot of effort in proper planning, installation and revision too
This makes engineering design and maintenance faster, more economical and more efficient.
Industrial” is a world-leading all-round integrated open control system launched by ABB Group Automation Headquarters.
It integrates the advantages of traditional DCS and PLC in one body and supports a variety of international field bus standards. It has both the complex analog loop regulation capability of DCS
Power-friendly human-machine interface (HMI) and convenient engineering software, and at the same time have high-speed logic and sequence control equivalent to high-end PLC indicators.
control performance. The system can be connected to both conventional I/0 and various field bus devices such as Profibus, FF, CAN, and Modbus. system tool
It has a high degree of flexibility and excellent scalability, whether it is the control of small production units, or the control of ultra-large-scale whole plants – integrated control, even
The Industrial” system can handle the application of field equipment maintenance management and cross-plant production management control with ease.
An important member of the Industrial” family, the AC800F system fully embodies the Industrial” (Industrial Information) system pioneered and led by ABB in technology.
information technology) new trends.
The system is divided into two levels: operation management level and process control level. At the operation management level, not only the traditional control system monitoring operation function is realized
function (operation and display, printing, trend display and alarm), and also complete system hardware diagnosis and data exchange between different systems.
can. The process control stage realizes various loop adjustments including complex control (various PID, ratio, Simith, etc.)
