Siemens 6ED1055-1CB10-0BA2 LOGO! expansion modules. Siemens 6ED1055-1CB10-0BA2 is the exact printed commercial reference for a programmable logic relay in the LOGO! Logic Modules range. Siemens' official product description is: LOGO! DM16 24 expansion module, PS/I/O: 24 V DC/24 V DC/trans., 8 DI/8 DO, 4 MW for LOGO! 8.