Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 64 sinking/sourcing input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 64 sinking/sourcing input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 64 sinking/sourcing input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 16 sourcing input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 16 sourcing input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 16 sourcing input
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, 32 digital input
Siemens SIMATIC S7-300 SM 321 Digital I/O expansion module expansion module, 24VDC, 32 digital input