Siemens 6ED1055-1MA00-0BA2 LOGO! expansion modules. Siemens 6ED1055-1MA00-0BA2 is the exact printed commercial reference for a programmable logic relay in the LOGO! Logic Modules range. Siemens' official product description is: LOGO! AM2 expansion module, PS/: 12/24 V DC, 2 AI, 0-10 V or 0/4-20 mA for LOGO! 8.