•
COM – This contact is the OR result of the signals described above. That is, if
any other contact closes, this contact will close too. The signal to be read is
selectable through SWR2. See the figure below.
Figure 9.2
Dry Contact Layout
9.2
Software for PC Monitoring
The monitoring software allows for a server or workstation to monitor the ELI
operation. When the software is installed on a PC it can monitor 1-99 ELI’s
connected in series via a DB9 connection. The connector on the ELI side is RS-485
(for long distance transmission) therefore a RS-485 Ù RS-232 adapter (hardware) is
required to modify the signal (not included with ELI system).
9.3
Emergency Power off Connection
One pair of terminals (CNR 3) are provided to allow the user to shutdown the ELI
system in an emergency situation (e.g. fire, short circuit, etc.). A minimum of
10mA is needed for activate the photo-coupler.
9.4
DB9 Connectors
One RS-485 and one RS-232 are provided to communicate with more
sophisticated optional communication modules. Each connector is dedicated to
one type of external module.
9.5
Web Monitoring Module (SNMP Module)
Simple Network Management Protocol. The SNMP Card is an Interface to the
Ethernet network, and provides ELI information via the standard SNMP protocol.
The ELI can therefore be managed via an internet browser. This information can be
used to determine the state of the ELI and guarantee safe and orderly shutdown of
servers and workstations when needed.
37
M4102 Ty-Borealis 8-48KW Operators Manual v1.0 2013-08-14