Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 48-125VDC, 16 digital input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 48-125VDC, 16 digital input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 48-125VDC, 16 digital input
Siemens SIMATIC S7-300 SM 322 Digital I/O expansion module expansion module, 48-125VDC, 8 sinking output/ 1.5A current output
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 32 digital input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 16 digital input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 32 digital input
Siemens SIMATIC S7-300 SM 323 Digital I/O expansion module expansion module, 24VDC, 16 digital input, 16O digital output
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, interrupt, 24VDC, 16 digital input