4NWP100559R0001_OPM_ABB_PVA31-11-T_10-20kVA_EN_140626 Page 32/37 ABB
Modifications reserved
6 COMMUNICATION
A USB and an RS-232 port are available to enable the communication between the UPS and a remote
computer/station. Only one communication port can be active at a time and the priority is given to the
USB port.
Once the communication cable is installed, the power management software can exchange information
with the UPS. The software collects information from the UPS and indicates the status of the device, the
power quality of the mains and the battery autonomy of the units.
In case of a power failure and a predicted shutdown of the UPS due to low battery autonomies, the
monitoring system is capable of saving the data in the load and of initiating the shutdown of the
equipment connected to the UPS.
6.1 RS-232 port
An RS-232 port is available for UPS monitoring, control and firmware updates. To establish a
communication between the UPS and a computer, connect one end of the serial communication cable
that comes with the UPS to the RS-232 port on the UPS and the other end of the serial cable to the RS-
232 port on a computer. The cable pins for the RS-232 communication port are described in Figure 27
and in Table 7.
Figure 27: RS-232 Communication Port (DB-9 Connector)
Table 7: RS- 232 Port Pin Assignment
6.2 USB port
The UPS can communicate with an USB-compliant computers. To establish communication between the
UPS and a computer, connect the USB cable that comes with the UPS to the USB port on the UPS.
Connect the other end of the USB cable to the USB port on a computer. The USB port is compliant with
USB 1.1 protocol.
6.3 Network Management Card (Optional)
PowerValue 31/11 T is equipped with two intelligent slots for optional cards for remote management of
the UPS through internet / intranet. The accessories below can be installed in any of the intelligent slots.
SNMP Card - SNMP, HTTP and monitoring capabilities through a Web browser interface.
AS400 Card - AS400 card for AS400 communication protocol.
Pin Number
Signal Description I/O
2 TXD
Transmit to external device
Output
3 RXD
Receive from external device
Input
5 GND
Ground (tied to chassis)
Input
To Next Page
Loading...
