M.HIST.0138.23 R1 Page 19 of 28 October, 06
th
2020
7. THE OUTPUT CONNECTOR FUNCTION
The output connectors can be used for a possible connection of a device designed for
monitoring or controlling the supply activity.
IN/OUT INTERFACE
is intended for connection to protective hardware systems;
RS232
connector can be used for communication purposes via RS232 interface in
MODBUS RTU protocol.
LAN
connector can be used for communication purposes via ETHERNET interface in
MODBUS TCP protocol.
(Modbus Application Protocol V1.1b3)
7.1.
Pin layout of DB9 IN/OUT Interface connector
Interlock couple wires are open / short inputs. Short shall sustain at least 5 mA, open will
present a 12V voltage difference.
Alarm couple wires are open / short outputs. They can be read with a maximum voltage of
24 Vdc and a maximum current of 500 mA.
