Fluke NetDAQ 2645A - Manual (Page 28)

2640A/2645A NetDAQ
Users Manual
1-12
operations refer to the instrument by BCN. NetDAQ Logger supports up to 20
instruments for operation. You cannot operate an instrument from more than one
host computer at a time.
Isolated Networks 1-19.
An isolated network consists of only NetDAQ instruments and host computers.
The advantages include simplified setup, faster network operation, and freedom
from general network problems. Data throughput specifications are guaranteed
only for isolated networks. When you install NetDAQ Logger for an isolated
network, it automatically handles instrument IP addressing. You must configure
your host computer networking software to use a host computer IP address of
198.178.246.1xx and subnet mask of 255.255.255.0. See “Setting Host Computer
Network Parameters” in Chapter 2 of this manual.
General Networks 1-20.
A general network consists of host computers, NetDAQ instruments, and servers,
routers, gateways, or other network devices. Refer connectivity issues to your
network administrator and review Appendix I “Network Considerations” for more
information. When you install the NetDAQ software for a general network, you
must enter the instrument IP addresses manually.
Ethernet Port Selection 1-21.
Each instrument has two network ports: 10Base2 coaxial and 10BaseT twisted
pair Ethernet. The instrument automatically monitors and selects the active
Ethernet port. You may change ports at any time and the instrument will detect
the change and automatically connect to the active port.
Asynchronous Instrument Operations 1-22.
Using NetDAQ Logger, you denote instruments as asynchronous or grouped. An
asynchronous (independent) instrument controls its own scanning operations,
including scan interval and method of triggering scans. NetDAQ Logger records
measurement data from each asynchronous instrument in an individual data file.
Group Instrument Operations 1-23.
Using NetDAQ Logger, you can group multiple instruments to act as one
instrument. NetDAQ Logger records data from all instruments in the group into a
single data file. You can group up to 20 instruments for up to 400 time-correlated
channels.