HONEYWELL CC-TDOB11 DCS模块

HONEYWELL CC-TDOB11 DCS模块

HONEYWELL CC-TDOB11 DCS模块 因为数据通信标准牵涉到网络结构、通信介质（信道）、通信协议、IEEE802.4令牌总线传输方式和IEEE802.5令牌环网传输方式的通信协议在DCS系统中应用最广，是否能够成为今后DCS的通讯标准，还有待观察。

HONEYWELL CC-TDOB11 DCS模块 通常根据CPU所带的I/O点数的规模分为微型PLC、小型PLC、中型PLC、大型PLC、PC插卡式PLC以及PC兼容的PLC。各种规模分类标准如附表所示。

一套典型的PLC通常包括CPU模块、电源模块和一些输入/输出模块，这些模块被插在一块背板上。如果配置增加，可能会包括一个操作员界面、监控计算机、通讯模块、软件以及一些可选的特殊功能模块。HONEYWELL CC-TDOB11 DCS模块 可编程控制器不仅容易安装，占用空间小，能源消耗小，带有诊断指示器可以帮助故障诊断，而且可以被重复使用到其它的项目中去。尽管有PLC的功能，如运行速度、接口种类、数据处理能力已经获得了很大的提高，但PLC一直保持了其最初设计的原则，那就是简单至上的原则。

·采用新的先进的微处理器和电子技术达到快速的扫描时间;·小型的、低成本的PLC，可以代替四到十个继电器;

·高密度的I/O系统，以低成本提供了节省空间的接口;

HONEYWELL CC-TDOB11 DCS模块

HONEYWELL CC-TDOB11 DCS module

HONEYWELL CC-TDOB11 DCS module is the most widely used in DCS system because the data communication standard involves the network structure, communication medium (channel), communication protocol, IEEE802.4 token bus transmission mode and IEEE802.5 token ring network transmission mode communication protocol. Whether it can become the communication standard of DCS in the future remains to be seen.

HONEYWELL CC-TDOB11 DCS modules are usually divided into micro PLC, small PLC, medium PLC, large PLC, PC card PLC and PC-compatible PLC according to the scale of the I/O points carried by the CPU. Various scale classification standards are shown in the attached table.

A typical PLC typically consists of a CPU module, a power module, and some input/output modules that are plugged into a backplane. If the configuration is increased, it may include an operator interface, monitoring computer, communication modules, software, and some optional special function modules. HONEYWELL CC-TDOB11 DCS module Programmable controller is not only easy to install, occupy small space, low energy consumption, with diagnostic indicators to help fault diagnosis, and can be reused in other projects. Although there are PLC functions, such as running speed, interface types, data processing capabilities have been greatly improved, but the PLC has maintained its original design principle, that is, the principle of simplicity first.

· Adopt new advanced microprocessors and electronic technology to achieve fast scan times; Small, low-cost PLCS that can replace four to ten relays;

· High-density I/O systems provide space-saving interfaces at low cost;

HONEYWELL CC-TDOB11 DCS模块