Product Quantity Subtotal Siemens SIMATIC S7-300 SM 323 Digital I/O Module, 16 Inputs (24V DC Sink/Source) and 16 Outputs (0.5A Transistor), Isolated Siemens SIMATIC S7-300 SM 323 Digital I/O Module, 16 Inputs (24V DC Sink/Source) and 16 Outputs (0.5A Transistor), Isolated quantity Coupon: Apply coupon Update cart Cart totals Subtotal Total PROCEED TO SEND REQUEST