• Welcome to ClassicPLC.com
    The Legacy Programmable Logic Controller Community.

    Register now for free.
  • Also Branded As: Siemens

505-2571 Program Port Expander Module

Provides 4 additional communications ports which function like
the program port on the CPU

Module Type Special Function

Practical Support NITP (TBP not supported)
Baud Rates 1200, 2400, 9600, 19200
Port 1 Description RS-232C, male DB9
Port 2 Description RS-232C, male DB9
Port 3 Description RS-422, female DB9
Port 4 Description RS-422, female DB9