The SIPLUS S7-1200 SM 1223 16DI/16DQ RLY (6AG1223-1PL32-2XB0) is a digital input/output module from Siemens, designed for SIPLUS S7-1200 systems, based on 6ES7223-1PL32-0XB0 with a conformal coating for operation in harsh environments. The module is suitable for temperatures ranging from -40 to +70 °C, with a startup temperature of -25 °C. It features 16 digital inputs (DI, 24 V DC, sink/source) and 16 digital outputs (DQ, relay 2 A). With a net weight of 0.325 kg and packaging dimensions of 8.30 x 10.50 x 8.80 cm, its compact design helps save space in control cabinets. DIN rail mounting is supported. It is used in industrial automation systems, particularly for processing digital signals in harsh conditions such as high humidity, dust, or extreme temperatures.