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。
treatment plant in the remaining years will be the net profit of the project investment. As a BOT project, the investment amount and rate of return of this scale of sewage treatment plant are more acceptable to domestic and foreign water investors, and the investment risk has also decreased. The three small and medium-sized sewage treatment plants under construction in the Taihu Lake Basin, Chengbei, Shuofang and Meicun, Wuxi The urban sewage treatment project adopts BOT mode for financing, and introduces the investment and advanced management of foreign water companies. The model is a semi-automatic model, and the overall electric control scheme is PLC + man-machine interface + frequency converter + intermediate relay + contactor. The PLC adopts k306 AC 220V 24 point relay output type, the man-machine interface adopts 4-line text display, and the frequency converter is used to control the whole MechanicalSpindle speed. 2. System configuration (1) IO configuration of PLC is as follows:
(2) The text display setting parameters need to be executed in chronological order in the whole working process, and these time parameters can be set freely. The specific parameters are: cutter start delay, glue spraying start delay, glue spraying duration, paper cutting duration, blowing duration and cutter reset time. During the working process, the current machine speed and the number of rolling sections shall be displayed in real time. In the shutdown state, you can also set the number of paper reels and the number of variable speed sections of the frequency converter. 3. Process flow the control scheme is a typical sequential control system, and the control process is roughly as follows: (1) press the button, the frequency converter outputs, the main shaft rotates, and the paper winding begins (2) when the paper winding reaches the set number of sections, the frequency converter will run at a high speed (3) when the paper winding ends, the frequency converter turns off the
