S7-1200 PLC SM 1223 digital inputoutput module 6ES7223-1PL32-0XB0

Overview

• Digital inputs and outputs as supplement to the integral I/O of the CPUs
• For flexible adaptation of the controller to the relevant task
• For subsequent expansion of the system with additional inputs and outputs

Application

Digital input/output modules permit:

• Connection of the controller to digital signals of the process
• Output of digital signals from the controller to the process

This provides users with the following advantages:

• Optimum adaptation:
  With signal modules which can be mixed as desired, users can adapt their controllers exactly to the relevant task. This avoids superfluous investments. Modules with 8, 16, and 32 input/output channels are available.
• Flexibility: 
  If the task is expanded subsequently, the controller can be upgraded. Updating of the user program is extremely simple.

Function

The SM 1223 digital input/output signal modules convert:

• the level of the external digital signals from the process into the internal signal level of the S7-1200 controller and
• the internal signal level of the SIMATIC S7-1200 Controller into the external signal level required for the process.