SIMATIC S7-1200 G2: SB 1221 digital input, 8 DI 100 kHz; inputs: 8x DI 24 V DC sink/source, 100 kHz SIMATIC S7-1200 G2 Basic Controller - flexible due to a wide variety of communication options. If you only have to extend your SIMATIC S7-1200 G2 - CPU with a few inputs or outputs, signal boards are a good alternative to signal modules. Signal boards are plugged directly onto the front of the controller and are available as digital and analog input, output and hybrid modules. Signal boards thus permit subsequent expansion of the configuration without requiring any further space in the control cabinet.
