Modul analogic I/O pentru automat programabil (PLC) SIMATIC S7-1200, intrari analogice SM 1231 RTD, 8 AI RTD, Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000, 24VDC, 6ES7231-5PF32-0XB0, Siemens