114
EL3000
CONTINUOUS GAS ANALYZERS | CI/EL3000-EN REV. C
… 7 Operation
Communication between gas analyzer and computer
Ethernet communication
The communication between the gas analyzer and the computer
runs via an Ethernet connection either as a point-to-point
connection or via a network.
The Ethernet connection enables communication
• using the test and calibration software Optima TCT Light,
• using the ECT configuration software,
• for QAL3 data transfer if the ‘QAL3 monitoring’ option is
integrated in the gas analyzer,
• For reading the measured values and calibration and control
of the gas analyzer via the Modbus® TCP/IP protocol.
Establishing communication between the gas analyzer
and the computer
To establish the communication between the gas analyzer and
the computer, the following steps must be performed in
particular:
1. Check and set the TCP/IP parameters in the gas analyzer and
the computer.
2. Establish and test the Ethernet connection.
3. Establish communication between the gas analyzer and the
computer.
Check the TCP/IP parameters in the gas analyzer and in
the computer
For operation of the configurator, the TCP/IP parameters must
be checked in both the gas analyzer and the computer and
changed, if necessary.
In the case of a point-to-point connection, the IP addresses in
the gas analyzer and in the computer must be matched.
Example:
Gas analyzer: 192.168.1.4,
Computer: 192.168.1.2
Note
If the gas analyzer is connected to a network without a DHCP
server, then the parameter ‘DHCP’ should be set to ‘off’.
This also applies if the gas analyzer is not connected to a
network via Ethernet.
This is to prevent the gas analyzer from continuously attempting
to establish a network connection.
Setting the IP address
Menu Path
‘
Setup /
Device Settings /
Ethernet’
Figure 56: Menu ‘Ethernet’
Function
The Ethernet connection enables communication
• using the ECT software tool and Optima TCT Light,
• for QAL3 data transfer if the ‘QAL3 monitoring’ option is
integrated in the gas analyzer,
• for reading the measured values and for adjusting and
controlling the gas analyzer via the Modbus TCP/IP protocol.
Parameters
It depends on the DHCP settings what parameters need to be
integrated:
DHCP setting
Parameter
DHCP on
Network name
(max. 20 characters, no empty and special
characters),
DHCP off
IP address, IP address mask and IP gateway
address.
The network name can only be changed in the Configurator. The
default network name consists ofEL3K'’ and the last six
characters of the MAC address (for example, ‘EL3KFF579A’).
If the parameter ‘DHCP’ is set to ‘off’, the Ethernet configuration
is set to the default configuration (default IP address) in order to
avoid unintentional assignment of an IP address from a DHCP
pool.
