The Simatic top-connect cabling system quickly and reliably wires Siemens Simatic S7-1500 input/output modules, eliminating costly and time-consuming terminal-block connections. The system is available in a modular design delivering fast and well-organized field sensor and actuator wiring. The modular system includes plug-in front connector modules that easily attach to Simatic S7-1500 I/O modules and preassembled connecting cables. A flexible model is also available for simple wiring inside the control cabinet.  LED signaling and signal conditioning from 230 VAC to 24 VDC options are available. Users can quickly select and order the required version with the TIA selection tool on the Siemens website. The tool helps users select the correct components in the modular and flexible models for selected I/O modules. —Siemens Industry