Siemens 6GK7542-5DX00-0XE0 CM1542-5 Central Module

The Siemens CM 1542-5 central module, part number 6GK7542-5DX00-0XE0, provides PROFIBUS DP connectivity for SIMATIC S7-1500 systems, enabling DPV1 master or DP slave communications and S7/PG/OP networking over a PROFIBUS DP network. As a CM 1542-5 device, it supports data record routing, time‑of‑day synchronization, and on‑board diagnostics to help coordinate remote devices and monitor network health. This exact variant is listed by Siemens as CM 1542‑5 with the 6GK7542‑5DX00‑0XE0 designation, and Siemens notes that the product is discontinued as of August 9, 2024, with 6GK7542‑5DX10‑0XE0 identified as the successor. In practice, it is used to extend a S7‑1500 PLC’s communication reach to PROFIBUS DP devices, enabling DPV1 master/slave configurations and integration with S7 and PG/OP communications; because it is a legacy module, users should verify compatibility with their CPU, DP network, and existing field devices before reuse in a project. The product’s lifecycle information places it in the final year of support, so planning for migration to a supported CM1542‑5 variant is advisable for new designs or long‑term deployments.