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Digital modules- Digital inputs/outputs as supplement to the integral I/O of the SIMATIC S7-1200 CPUs
- Signal modules as separate modules;
can be used with all CPUs of the SIMATIC S7-1200 with the exception of the CPU 1211C - Signal boards as modules to be plugged onto the CPU, for use where space is limited;
can be used with all CPUs of the SIMATIC S7-1200 - For flexible adaptation of the controller to the relevant task
- For subsequent expansion of the system with additional inputs and outputs
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