Siemens 6ES7197-1LA12-0XA0 SIMATIC S7-400H Y-Link DP Slave Connection 12000 kbit/s Remote I/O Interface Module

The Siemens 6ES7197-1LA12-0XA0 Y-Link connects single-channel PROFIBUS DP slaves to redundant SIMATIC S7-400H and AS 410H systems, supporting a DP transmission rate up to 12,000 kbit/s. It provides potential separation between its DP interfaces and measures 180 x 125 x 130 mm. The module lets non-redundant field devices operate in a redundant automation system without duplicating the slave hardware.

Technical Specifications

Selection Notes

Pick the Y-Link when an existing DP slave has only one PROFIBUS port and needs to stay usable on a redundant S7-400H segment — the module duplicates the physical connection into the redundant bus so the slave itself does not need a second interface. The 12,000 kbit/s ceiling matches standard PROFIBUS DP and should be checked against the slowest slave already on the segment.

Applications

Used in SIMATIC S7-400H / AS 410H redundant automation systems to integrate single-channel PROFIBUS DP field devices, such as legacy I/O stations or drives, that were not built with a redundant bus interface.