Siemens 6ES7158-0AD00-0XA0 DP DP Coupler

Siemens SIMATIC DP/DP Coupler, model 6ES7158-0AD00-0XA0, is a coupling module that connects two PROFIBUS DP networks to enable cross-network communication in automation installations. This compact device provides DP interfaces on both sides, effectively bridging two DP segments to support distributed I/O, PLCs, and remote I/O devices across subnets. It operates from a 24 V DC supply and draws about 250 mA, with a housing roughly 40 mm wide, 110 mm high and 70 mm deep and a weight near 500 g. As part of Siemens' SIMATIC DP family, this DP/DP coupler is used to interconnect DP networks in manufacturing lines and automation racks where network segmentation helps manage traffic and maintain performance.