SIPLUS S7-1500 CM PTP RS422/485 TX rail based on 6ES7541-1AB00-0AB0 with conformal coating, -40…+70 °C, OT4 with ST1/2 (+85 °C for 10 minutes), communications module for serial connection RS-422 and RS-485, Freeport, 3964 (R), USS, MODBUS RTU master, slave, 115200 Kbit/s, 15-Pin D-sub socket SIMATIC ET 200MP is a modular and scalable I/O system with IP20 for universal use, and offers the same system advantages as the S7-1500. It permits the shortest bus cycle times and fastest response times, even with large volumes of data. The distributed I/O system is particularly easy to install, wire, and commission. Thanks to its scalable design, you can gear the IO station exactly to the on-site requirements. SIPLUS extreme communication modules are specially designed for harsh ambient conditions. To ensure that biologically, chemically and physically active substances do not negatively impact your automation system.