Eaton Electrical 34003991EN/EB - Manual (Page 77)

Network Management Card – User Manual 34003991EN/EB Page 77/118
7 Industrial Network Management Card (INMC option)
7.1 Presentation
7.1.1 Overview
7.1.2 Functions
The Industrial Network Management Card (INMC) provides the same functions than the NMC card described in the
previous section of this document.
The adding function consists to provide UPS (Uninterruptible Power Supply) data (states and measures) to be sent a
computer system.
The JBUS hexadecimal (MODBUS RTU) communication protocol is used in slave mode. The system provides a
communication channel with an RS485 or RS232 interface.
Note:
◗ 2 wires or 4 wires RS485 link are available.
Warning:
◗ RS232 and RS485 communication ports cannot be used together.
◗ JBUS/MODBUS communication is operational 2 minutes after the startup of the card.