BENTLY 3500/45140072-04

主营产品，备件供应，充足库存

Foxboro（福克斯波罗）：I/A Series系统，FBM全系列（现场输入/输出模块）

顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、

数据通信及处理等。

Westinghouse（西屋）：1C31系列DCS系统、CPU、OVATION系统、WDPF系统、

WEStation系统备件。

Triconex（英维思）:冗余容错控制系统、基于三重模件冗余（TMR）结构的现代化的容错控制器。

EMERSON（艾默生）:模块、卡件、驱动器等各类备件。

XYCOM：XVME系列

Bently（本特利）：3500/3300系统。

Rockwell（罗克韦尔）：ICS系统。

ABB：PM全系列DCS系统、IGCT高压变频器系列、工业机器人备件DSQC系列、INFI 90等。

Bailey（贝利）：BRC系列DCS系统等。

Allen-Bradley：1756、1785、1771、1746全系列系统等。

Yokogawa（横河）：CP系列等。

Honeywell（霍尼韦尔）：TK/TC/CC系统等。

Reliance（瑞恩）：57C系列等。

Schneider（施耐德）：140系列处理器、控制卡、电源模块等。

Modicon（莫迪康）：AS系列PLC系统备件。

Siemens(西门子)：6ES5/6ES7414/6ES7415/6ES7416系列PLC系统备件、

Siemens MOORE，Siemens Simatic C1，Siemens数控系统等。

Motorola（摩托罗拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

XYCOM：I/O、VME板和处理器等。

GE（通用电气）：IC698/IC697全系列PLC系统、模块、卡件、驱动器等各类备件。

Yaskawa（安川）：伺服控制器、伺服马达、伺服驱动器。

Bosch Rexroth（博世力士乐）：Indramat，I/O模块,PLC控制器,驱动模块等。

Woodward（伍德沃德）：SPC阀位控制器、PEAK150数字控制器。

At first, PLC is used for logic control of switch quantity. With the development of PLC skills, its application field is expanding. Nowadays, PLC is not only used for switch control, but also for analog and digital control, which can collect and store data, and monitor the control system; It can also be connected with each other and communicated to complete large-scale cross regional control and handling. PLC has become a leading role in the family of industrial control equipment.
1. For switch control
PLC control switch function is very strong. The number of input and output points controlled can reach hundreds, thousands, even tens of thousands of points, because it can be connected with each other, and the number is unlimited. No matter how many points can be controlled, the logic questions controlled can be diversified: combined, sequential, immediate, delayed, non counting, demand counting, fixed order Random assignments, etc., can be done.
The hardware structure of PLC is variable, and the software program is programmable. It is very flexible when used for control. If necessary, you can write multiple sets or groups of programs, which can be called according to the requirements. It is very used to the demand of multi working conditions and multi condition change in the industrial site.
There are many examples of switching quantity control by PLC. Metallurgy, machinery, light industry, chemical industry, textile and so on. It is required by all industries. Nowadays, the first use policy of PLC is also the one that other controllers can not compare with, that is, it can be used for the control of switch quantity conveniently and reliably.
2. For analog quantity control
Analog quantities, such as current, voltage, temperature, pressure, etc., are continuously changed in size. Industrial production, especially the continuous production process, often needs to control these physical quantities.
As an industrial control electronic equipment, PLC can not control these quantities, which is a big lack. Therefore, PLC manufacturers have carried out many development in this area. Nowadays, not only large and medium-sized machines can control analog quantity, that is, small ones, but also can control them. PLC is used to control analog quantity, and it is necessary to equip a/d and d/a units with analog and digital quantity changing each other. It is also an i/o unit, but it is a special i/o unit.
A/d unit is to convert the analog quantity of the external circuit into digital quantity, and then send it to PLC; D/a unit is to transform the digital quantity of PLC into analog quantity and then send it to the external circuit. As a special other i/o unit, it still has the characteristics of i/o circuit anti-interference, circuit blocking in the meter, communication information with input and output relay (or internal relay, which is also a region of PLC operation memory, readable and written).