S5 addressing is based on a group structure. The backplane bus organizes I/O in slices of 4 bytes (32 digital points or 2 analog channels).
The first step in any S5 hardware configuration is understanding the physical layout. The S5 uses a backplane bus system housed in metal racks. siemens s5 hardware configuration
Usually indicates a configuration mismatch, such as a missing module defined in the software or a hardware fault. S5 addressing is based on a group structure
S5-100U and S5-115U offer modularity for mid-sized applications. High-End Systems: siemens s5 hardware configuration