under the order

SIPLUS S7-1500cm PtP RS232 HF -40...+70 °C Start-up -25 °C with conformal coating based on 6ES7541-1AD00-0AB0 . Communication module for Serial connection RS232, Freeport, 3964 (R), USS, MODBUS RTU Master, Slave, 115200 Kbit/s, 9-pin D-sub connector

Download instructions at Siemens

If you have additional questions contact the manager