SIMATIC S7-1200 G2: SM 1233 analog I/O, 4AI/4AO; Input: 4x AI 14-bit ADC (??10V, ??5V, ??2.5V or 0-20 mA/4-20 mA); Output: 4x AO 14-bit DAC (??10V, 0-20 mA or 4-20 mA)
$454.12 – $504.58
SM 1233 Analog I/O — 4 AI / 4 AO, 14-bit. Higher-channel combined analog module for multi-loop control.
Technical Specifications
| Analog Inputs | 4x AI 14-bit ADC |
| Analog Outputs | 4x AO 14-bit DAC |
| Range | ±10V / ±5V / ±2.5V / 0–20mA / 4–20mA (input); ±10V / 0–20mA / 4–20mA (output) |
Typical Applications
Used in multi-loop process control where several analog measurement and control points are needed on one module, such as multi-zone heating or batching systems.





