Siemens 6ES7523-1BL00-0AA0 Digital Input Output Module

The Siemens 6ES7523-1BL00-0AA0 SIMATIC S7-1500 Digital Input/Output Module combines 16 digital inputs and 16 digital outputs at 24 V DC (DI 16x24 V DC / DQ 16x24 V DC, BA). Each output channel is rated for 0.5 A, with the DO arranged in two 8-channel groups that allow up to 4 A per group. Both input sensing and output switching operate at 24 V DC, and the module features a typical input delay of 3.2 ms. It is designed for use with SIMATIC S7-1500 and ET 200MP configurations, and is configurable in STEP 7 / TIA Portal (supported by the S7-1500 family). The device also supports load-group disconnection up to SIL 2 per EN IEC 62061:2021 for safety-critical applications.