SIMATIC S7-400. SM 431 ANALOG INPUT MODULE OPTIC. ISOLATED. 8 AI. 13 BIT RESOLUTION. U/I/RESIST.
SIMATIC S7-400. ANALOG INPUT SM 431. NON-ISOLATED 16 AI. RESOLUTION 13 BITS. +/-10V. +/-20MA. 4 - 20MA 20 MS MODULE UPDATE
SIMATIC S7-400. ANALOG INPUT SM 431. 8AI; 16 BIT RESOLUTION. U/I/THERMOEL.. OPTIC. ISOLATED W. 1 POINT PER COMMON. DIAGN.. ALARM. 20 MS MODULE UPDATE
SIMATIC S7-400. SM 431 ANALOG INPUT MODULE OPTIC. ISOLATED. 8 AI. 14 BIT RESOLUTION. U/I/RESIST./ THERMOEL/PT100