"PLC学习资料-PPT课件及SLC500系列控制器简介"

一份绝好的PLC学习资料-PPT课件.ppt；一份绝好的PLC学习资料-PPT课件.ppt;1SLC500Programmable(Logic)Controller可程控器1960年代因应多变弹性的生产系统, 可程序的控制器开始发展。在动力回路中，启动停止电磁开关和自保接点提供了过载保护。控制回路中，停止启动输入和输出通过PLC的阶梯图程序实现，这种方式可以简化硬件配线，并且在制程变动时只需修改PLC程序即可。12SLC500A-B PLC系列简介 PLC-2和PLC-3是在70年代末期至90年代初期使用的，分别支持256~896个I/O和4096个I/O，并且使用1771系列I/O。90年代初期推出的SLC-500中小型PLC支持16~960个控制点，并且使用1746系列I/O模块。80年代中期推出的PLC-5中大型PLC则支持256~4096个I/O点，并且使用1771系列I/O。PLC-5/250是一种大型整合性控制器，支持4096个I/O点，并且强调通讯整合与资料处理。23SLC500SLC-500系列可程控器SLC-500主机采用单一模块化设计，各种机型尺寸相同，并且可以安装于1746 I/O框架上。它使用阶梯图程序语言，并且具有通讯机能，支持RS232、D等通讯协议。 In the 1960s, due to the increasingly flexible production systems, programmable controllers began to develop. In the power loop, start-stop electromagnetic switches and self-protecting contacts provide overload protection. In the control loop, start-stop inputs and outputs are implemented through PLC ladder diagram programs, which simplifies hardware wiring and only requires modification of the PLC program during process changes. The 12SLC500A-B PLC series overview shows that PLC-2 and PLC-3 were used in the late 1970s to early 1990s, supporting 256~896 and 4096 I/O, using 1771 series I/O. The SLC-500 small and medium PLC, introduced in the early 1990s, supports 16~960 control points and uses 1746 series I/O modules. The PLC-5 large PLC, introduced in the mid-1980s, supports 256~4096 I/O points and uses 1771 series I/O. The PLC-5/250 is an integrated large-scale controller that supports 4096 I/O points and emphasizes communication integration and data processing. The SLC-500 series programmable controllers have a single modular design for the main unit, with the same size for various models and can be installed on a 1746 I/O frame. It uses a ladder diagram programming language and has communication capabilities, supporting RS232, D, and other protocols. Overall, the SLC500 series offers a comprehensive solution for programmable logic control with modular and scalable options.