10.6 Channel Expansion Function
Procedure
1.
Press
SYNC
on the master unit of the synchronous operation to display the SYNC
menu.
2.
Press
Expand
soft key to select On or Off.
Explanation
Preparations Necessary before Using the Channel Expansion Function
The IP address (see section 13.4, “Viewing the Network Settings”) of slave units must
be specified on the master unit that has completed the synchronous operation setting.
Create a file named
NodeList.txt in the SETUP directory in the GS820ROM on the
master unit (see “USB Storage Function” on page 2-36) Write the IP address of each
slave unit separating each IP address with a line feed (CR+LF) in the NodeList.txt file. Up
to five units including the master unit (10 channels) can be connected in this way.
Example of a NodeList.txt file when five units are connected and the number of
channels is expanded to 10
192.168.0.55 //CH3, 4
192.168.0.19 //CH5, 6
192.168.0.76 //CH7, 8
192.168.0.87 //CH9, 10
Note
• Be sure to name the file containing the IP addresses to NodeList.txt.
• Check that all GS820s are connected to the network before turning the channel expansion
function ON. If any of the slave units is not connected properly, an error occurs when the
channel expansion function is turned ON, and the function automatically turns OFF.
• Channel expansion is not possible when there is a mixture of 18 V models and 50 V models.
Execution of the Channel Expansion Function and Generation of a Result
File
If a pattern file containing patterns for up to 10 channels is loaded into the master unit in
programmable sweep mode (page 2-22), the master unit automatically distributes and
loads the pattern file into each slave unit. After turning ON the storage function of the
master unit (see section 9.1, “Storing Measurement Results”), start the sweep operation
on the master unit (see section 6.5, “Starting the Sweep Operation”). After the storage
operation is completed, a result file (Result.csv) containing the data of all expanded
channels is generated on the GS820RAM of the master unit.
<<Corresponding Command Mnemonic>>
:SYNChronize:EXPand
10-10
IM 765601-01E
