PFEA111-20 3BSE028140R0020 张力控制器 ABB

PFEA111-20 3BSE028140R0020 张力控制器 ABB

PFEA111-20 3BSE028140R0020 张力控制器 ABB

PFEA111-20 3BSE028140R0020 需要PID控制的生产线，例如将产品保持在特定温度，通常需要一个单独的设备来控制加热器，然后连接到主控制器。

PFEA111-20 3BSE028140R0020  PID控制和许多其他类型的高级模拟控制，现在可以由主控制器轻松完成，实现更加无缝的操作。从开始到结束包括过程的所有元素的能力是当今复杂PLC的重要组成部分，甚至是一些微型模型。实施高度复杂的控制从未如此简单或便宜。

连通性今天的PLC有能力接口和通信使用每一个可以想象的协议。旧平台主要局限于使用RS-232和RS-485的串行通信，而现在其范围涵盖了工业网络领域(图2)。像Modbus这样的老式串行协议仍然可用，但是随着网络变得越来越复杂，硬件也变得越来越复杂。

PFEA111-20 3BSE028140R0020 张力控制器 ABB

PFEA111-20 3BSE028140R0020 Production lines that require PID control, such as keeping the product at a specific temperature, usually require a separate device to control the heater, which is then connected to the master controller.

PFEA111-20 3BSE028140R0020 PID control and many other types of advanced analog control can now be easily done by the host controller for more seamless operation. The ability to include all elements of the process from start to finish is an important part of today's complex PLCS, even some miniature models. Implementing highly complex controls has never been easier or cheaper.

Today's PLCS have the ability to interface and communicate using every imaginable protocol. Whereas the old platform was mainly limited to serial communication using RS-232 and RS-485, its scope now covers the industrial networking domain (Figure 2). Older serial protocols like Modbus are still available, but as networks become more complex, so does the hardware.