5/22/2019 7:30 PM | |
Posts: 5 Rating: (0) |
Hi, Could someone or Siemens share an actual schematic of the secret RS232/PPI cable, in addition to the external interfaces' pinout and DIP SW's functions ? Subjects of my interest are: 1. What is the ZERO position of DIP SW5, setting up a "PPI/Freeport mode", that is used for an operating system update, and what is the ONE position? What is the "PPI/Freeport mode"? 2. What are the physics of DIP SW1-3, SW6, SW7? Is that different terminations selector?, an embedded uCU based serial wold speed/bit format converter? 3. How can be activated the operating system update/reset mode, with Siemens Field PG computer's MPI/DP and MP277's DP/MPI/PPI RS485 interfaces? Cable layout? 4. How should be set the RS485 DIP SW's of the MP277 panel, in order to enter the panel in the operating system update/reset/load mode, if an initial OS is corrupted (Booting is stopped as soon as a Boot loader revision/date is displayed)? Thank you. Oleg T. ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 05/23/2019 13:18:35New subject after splitting |
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