Siemens PLC 6ES7321-1CH00-0AA0 SM321 Siemens Expansion Module from Germany
**Spare parts*** SIMATIC S7-300, digital input SM 321, potential isolation, 16 digital inputs, 24-48V AC/DC, with one group of 1, one group of 40 poles
Introduction
**Spare parts*** SIMATIC S7-300, digital input SM 321, potential isolation, 16 digital inputs, 24-48V AC/DC, with one group of 1, one group of 40 poles
