What this module does on a LOGO! base unit
The Siemens 6ED1056-4BA00-0AA0 is a program module that plugs into LOGO! base units of the 0BA1, 0BA2, and 0BA3 generations, storing the user program and retaining it when the module is removed. It also carries know-how protection, meaning the program stored on the module cannot be read back out without the correct password — useful when distributing a programmed LOGO! to a remote panel and you want to protect the logic.
