Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 120/230VAC, 8 digital input
Siemens SIMATIC S7-300 SM321 Digital I/O expansion module expansion module, 120/230VAC, 16 digital input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 120/230VAC, 8 digital input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 120/230VAC, 8 digital input
Siemens SIMATIC S7-300 SM 322 Digital I/O expansion module expansion module, 120/230VAC, 32 digital output/ 2A current output
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 32 digital input
Siemens SIMATIC S7-300 SM 322 Digital I/O expansion module expansion module, 120/230VAC, 16 digital output/ 1A current output
Siemens SIMATIC S7-300 SM 322 Digital I/O expansion module expansion module, 120/230VAC, 8 relay output/2A current output
Siemens SIMATIC S7-300 SM 322 Digital I/O expansion module expansion module, 120/230VAC, 16 relay output/ 5A current output