ABB eVM1 Installation And Service Instructions Manual page 98

14.10 Communication
The Communication Tab enables you to set the serial communication parameters.
It is available when the Communication board option is ticked in the General Setting window.
Fig. 84
14.10.1 Communication Link to the IED
All read/write and monitoring functions of the Configuration Tool are available when an active
communication link from a PC has been established with the electronic Device (IED) inside the
CB, either directly through the D-Sub connector –XB24 (refer to schematic drawings 1VCD400060)
or through the 58 pin connector, directly or via the Panel HMI.
When the communication to the IED is active the left "Networks" signalling LED on the CB HMI is
on. When the communication is not active or the port is busy, a pop-up window provides the
information and the LED goes off.
14.10.1.1 Direct communication with an eVM1
Remove the circuit-breaker screen and connect and male D-Sub 9-pin connector to the –XB24
connector on the IED basic card. It is possible to make the connection to the PC with a RS232/
RS485 half-duplex or full-duplex converter or with a USB/RS485 half duplex converter.
Enable the serial communication port of the PC by means of the Transfer, Open Port menu and
selection of one of the available ports among COM1, ... COM3.
In the case where the PC has already used the addresses COM1...COM3 for other peripherals or in
the case of using a USB port, to which a com number higher than COM3 is typically assigned by
the PC, it is necessary to re-assign an address in the COM1...COM3 field to the serial port or USB
used, following the Windows procedure with the application System in the Control Panel.
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