Siemens 6ED10551MA000BA2 Programmable Logic Controller Module. Siemens Expansion Module LOGO 12/24 VDC 0 to 20 mA 2 Input Screw Terminal 0 to 55 deg C 90 mm H x 35.5 mm W x 58 mm D. Additional Description: SIEM-6ED10551MA000BA2 LOGO! AM2 EXPANSION MODULE. Catalog Description: LOGO! am2 expansion module pu DC 12/24V 2 ai 0 - 10v or 0/4 - 20ma for LOGO!8.