Riello MultiCOM 301 User Manual page 26

C
OMMUNICATION PORT
The SERIAL 1 port offers an RS-232 serial line through which the UPS can be monitored using the
following proprietary protocol:
Protocol
GPSER
C
OMMUNICATION PORT
The SERIAL 2 port offers an RS-485 Half-Duplex serial line or an RS-232 serial line through which
the UPS can be monitored using the following protocols:
Protocol
Baud Rate [bps]
Parity
Stop bit
(2)
The values in bold type indicate the default configuration.
Where it is the GPSER protocol that is used on the SERIAL 2 port:
 In RS-232 configuration, the device address must obligatorily be set to zero.
 In RS-485 configuration, the device address must NOT be set to zero (see slave address
configuration).
- ENGLISH -
SERIAL 1
Baud Rate [bps]
1200
SERIAL 2
GPSER
1200 2400
(2)
No Parity
(2)
1
- 26 -
Parity
No Parity
MODBUS / JBUS RTU
(2)
4800 9600 19200
Even
Stop bit
1
(2)
38400 57600
Odd
2