SM1234
6ES7234-4HE32-0XB0 :SIMATIC S7-1200, analog I/O SM 1234, 4 AI/2 AO, +/-10 V, 14-bit resolution or 0 (4)-20mA, 13-bit resolution
6ES7234-4HD32-0XB0 : SIMATIC S7-1200, Analog output, SM 1232, 4 AO, +/-10 V, 14-bit resolution, or 0-20 mA/4-20 mA, 13-bit resolution
6ES7234-4HB32-0XB0 :SIMATIC S7-1200, Analog output, SM 1232, 2 AO, +/-10 V, 14-bit resolution, or 0-20 mA/4-20 mA, 13-bit resolution
6ES7231-5QF32-0XB0 : SIMATIC S7-1200, Analog input, SM 1231 TC, 8 AI thermocouples
6ES7231-5QD32-0XB0 : SIMATIC S7-1200, Analog input, SM 1231 TC, 4 AI thermocouples
6ES7231-5PF32-0XB0 :SIMATIC S7-1200, Analog input, SM 1231 RTD, 8xAI RTD module
6ES7231-5PD32-0XB0 : SIMATIC S7-1200, Analog input, SM 1231 RTD, 4xAI RTD module
6ES7231-5ND32-0XB0 : SIMATIC S7-1200, Analog input, SM 1231, 4 AI, +/-10 V, +/-5 V, +/-2.5 V, +/-1.25 or 0-20 mA/4-20 mA, 15 bit+sign bit
6ES7231-4HF32-0XB0 : SIMATIC S7-1200, Analog input, SM 1231, 8 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit+sign or (13 bit ADC)
6ES7231-4HD32-0XB0 : SIMATIC S7-1200, Analog input, SM 1231, 4 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit+sign (13 bit ADC)