How can the Siemens s7-200 be controlled by the touch screen and the computer at the same time? Business Style Leather Phone Case Business Style Leather Phone Case,Cover Leather Case,Flip Cover Leather Case,Genuine Leather Case Guangzhou Jiaqi International Trade Co., Ltd , https://www.make-case.com
Answer: There are two communication ports on the CPU224, one is connected to the upper computer and the other is connected to the touch screen.
There is only one communication port below the CPU224. If you want to implement the host computer and the touch screen, then you can expand the EM277, CP243-1 module, one connected to the upper computer, and one connected to the touch screen.