1756-L63 1756-L63 1756-L63 Wuyishan Source Automation Equipment Co., Ltd. [Sony] Contact: Chen Song Zhi [phone]: 18259918951 [business] QQ: 86156452/1097233549 [can e-mail] [Phone]: 0599-5312270 / 5312271 / 5312272/5312273 [Fax]: 0599-5312270 E-mail】 【QQ: 1097233549@qq.com [mail] 163 chensongzhivip@163.com (a) analysis of the controlled object control requirements and propose a detailed analysis of the process and the controlled object work characteristics, understand charged with the object of mechanical, electrical, fluid between the controlled object to the proposed control system PLC control requirements, determine the control scheme, designed to develop the mission statement. (B) determine the input / output control apparatus according to the system requirements, the system determines all the required input devices (such as: buttons, position switch, switch, and various sensors) and output devices (such as: contactors, solenoid valves, , signal lights, and other actuators, etc.), in order to determine the relevant PLC input / output device to determine the PLC I / O points. (C) Select options include the PLC PLC PLC models, the capacity, I / O modules, power options, see Section II of this chapter. (Four) assigned I / O points and peripheral hardware design PLC Line 1. Assigned I / O points to draw the PLC I / O points and connection diagram or table correspondence between input / output devices, the part can be in step 2 carried out. 2 PLC peripheral hardware design lines draw the rest of the electrical system wiring diagram, including the main circuit and did not enter the programmable controller control circuit. By the PLC's I / O connection diagram and PLC peripheral electrical circuit diagram of a system consisting of electrical schematics. Electrical wiring system hardware have been identified so far. (E) Program Design 1. Program design based on the control system requirements, the use of appropriate design approach to designing the PLC program. To control procedures in order to meet the system requirements of the main line, each writing achievement of the control functions of each sub-task or procedure, and gradually improve the system specified function. In addition, the program typically should include the following: 1) initialization routine. PLC after power on, usually do some initialization operation, to start to make the necessary preparations to avoid system malfunction. The main contents of the initialization process are: the certain data area, the counter is cleared, etc., some of the data required for recovery of the data area, the relay is set for some or reset, so some initial display state. 2), such as testing, troubleshooting and display program. These procedures are relatively independent, generally when the program is completed and then add the basic design. 3) Protection and chain procedures. Protection and chain is an indispensable part of the program, must be considered carefully. The control logic it can avoid the confusion caused by the illegal operation. 2 The basic idea of ??the program simulation debugger to debug simulation is to facilitate the simulation of the actual site in the form of the state, to create the necessary conditions for an environment to run the program. Depending on the way to generate on-site signal simulation debugging hardware method and two forms of simulation software simulation. 1) is to use some of the hardware simulation hardware device (such as a PLC or some other use input device, etc.) the analog signals to generate a field, and these signals are hard-wired connection connected to the input of the PLC system, the timeliness than strong. 2) simulation software is written in another set in the PLC simulation program to simulate the live signal, which is simple, but not easy to ensure timeliness. Simulation debugging, debugging can be segmented approach, and use the programmer's monitoring function. Aspects (six) hardware implementation is mainly designed hardware implementation and on-site construction control cabinet (Taiwan) and other hardware. The main contents are: 1) design of the control cabinet and other parts of the console layout and installation of electrical wiring diagram. 2) of the electrical interconnection between the respective portion of the design system. 3) According to the construction field wiring drawings and detailed examination. Since the program design and hardware implementation can be performed simultaneously, so the PLC control system design cycle can be shortened. (Seven) online debugging line debugging is further emphasized through the online system simulation program debugging. Online debugging process should be gradual, step by step debugging only connection from the PLC input devices, output devices connected again, followed by the actual loads. If you do not meet the requirements, hardware and procedures to make adjustments. Usually only part of the program can be modified. After all set up, delivery test run. After a period of time to run, if working properly, the program does not require modification, should solidify the program EPROM, to prevent loss of programs. (Eight) and finishing the preparation of technical documentation technical documentation including design specification, hardware schematics, wiring diagram, electrical components list, PLC programs and the use of brochures, etc.