Siemens 6EC1710-0A is a SIMATIC C1 module PC board designed as the annunciator PCB for a single-SPS SIMATIC system. This legacy board measures approximately 5.0 in × 1.0 in × 7.0 in and weighs about 0.1 kg, reflecting its compact form factor within early SIMATIC C1 assemblies. Alternate part numbers include 6EC1710-0A, 6EC1 710-0A, 6EC1-7100A, 6EC17100A, and 6EC1 7100A, indicating its place within the SIMATIC C1 family. Used primarily as an annunciator PCB in SIMATIC C1 installations, this module is part of Siemens' historical automation line and is commonly encountered in surplus or legacy equipment.
