MiCOM P921/P922/P923 - Schneider - error

Getting StartedP92x/EN GS/F22MiCOM P921/P922/P923 Page 17/2213. PC CONNECTION – LOCAL COMMUNICATIONSThe MiCOM S1 access software is used to set the relay locally from a laptop.13.1 Configuration of the connectionThe configuration is shown below :MiCOM P921 relayLaptopBattery9 pin front portSerial data connector (up to 15 m)Serial communication port (COM1 or COM2)P0394ENbDCEPin 2 TxPin 3 RxPin 5 0VSerial data connectorDTEPin 2 RxPin 3 TxPin 5 0VP0387ENaFIGURE 4: PC CONNECTION SHOWN ASSUMING 9 WAY SERIAL PORTThe front communication port is provided by a 9-pin female D-type connector located underthe bottom hinged cover. It provides RS232 serial data communication (asynchronousRS232 connection according the IEC870 requirements) and is intended for use with a PClocally to the relay (up to 15m distance) as shown in Figure 4: this is for one to oneconnection and this is not suitable for permanent connection.13.2 Configuration of the relay and of the laptopHaving made the physical connection from the relay to the PC, the PC’s communicationsettings must be configured to match those of the relay. The relay’s communication settingsfor the front port are fixed as shown in the table below:ProtocolBaud rateMessage formatModBus19,200 bits/s11 bit - 1 start bit, 8 data bits, 1 parity bit (even parity), 1 stop bitThe address of the relay must be set in the "COMMUNICATIONS" menu.