Siemens Simatic WF-470 Video Display Module (Old)


I need help with automation modernization project. Old automation process control system uses Siemens Simatic S 115U CPU 943, that is ok.

But do you have any infomation of Siemens WF-470 video display system? Its about 15 years old. How WF-470 and CPU 115U conversates together?

How this old model WF-470 video processor sends and gets data from S5 CPU

115 Data Block and Data Words?
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