Rockwell Automation 1758-RTU202 DataSite Hardware User Manual - Manual (Page 63)

Publication 1758-UM001D-EN-P - June 2011
Specifications 63
RS232
Attribute Description
COM port RS232 serial port (COM1, COM2)
Data Terminal Equipment (DTE)
DB-9P
Baud rate 2400, 4800, 9600, 19200, 38400, 57600
Parity None, Odd, or Even
Data bits 7 or 8 bits
Stop bit 1 or 2 bits
Duplex Half-duplex or full-duplex (with RTS/CTS control)
Cable length, max. 15.2 m
Protocol Modbus RTU/ASCII, DNP3, DS Workbench (only in COM2),
None
Protocol mode Master, Slave (DNP3 supports only Slave mode.)
RS485
Attribute Description
COM port RS485 serial port (COM1)
Data Terminal Equipment (DTE)
Baud rate 2400, 4800, 9600, 19200, 38400, 57600
Parity None, Odd, or Even
Data bits 7 or 8 bits
Stop bit 1 or 2 bits
Duplex Half-duplex
Cable length, max. RS485, 1200 m
Protocol Modbus RTU/ASCII, DNP3, None
Protocol mode Master, Slave (DNP3 supports only Slave mode.)