void _Init (char* IPasText);
double _GetLockInData (long Channel);
void _SendKeyCode (char* Text);
For the DLL Version 1.0.0.5, these functions have been tested to operate well with
MatLab. Note that parameters given as “double” are requested to be provided as
floating point number in Matlab, even if the number is an integer.
IMPORTANT NOTE: the function “_Init” is the required to be called always (once per
session) before any other function can be used.
Inside the directory “Remote_by_Matlab” is an example in Matlab that calls all these
functions. The description of their parameters is given in the table on page 44.
4.5 R
EMOTE
CONTROL
FOR
THE
E
L
OCK
I
N
IN
L
AB
V
IEW
For the remote control of the
eLockIn
under LabView, one can use the DLL-functions
or one can address the
eLockIn
via TCP/IP or VISA communication. For the DLL
based access, the following programs are provided:
●
eLockin.dll
provides the interface function
●
eLockin.vi
main program, which starts the communication
and uses the Get_eLockin.vi and the
Ref_eLockin.vi
●
Get_eLockin.vi
data interface, which takes the data from the
eLockIn
●
Ref_eLockin.vi
settings of the reference output
●
TestAuxOut.vi
example for the AuxOut usage
All programs should be in the same program directory.
For the TCP/IP access, the program tcpip.vi is provided.
4.5.1 TCP/IP
ACCESS
BY
L
AB
V
IEW
This access type is demonstrated in the examples:
•
tcpip.vi
reads the lia.dat via a TCP-IP
connection
•
Keycontrol.vi
demonstrates the key code use at the example of time
constant
•
Autophase.vi
demonstrates the key code use for adjusting the
46 (58)
Summary of Contents for eLockIn 203
Page 52: ...7 APPENDICES 7 1 SCHEMATIC DIAGRAM OF THE SIGNAL PATHS 52 58...
Page 53: ...7 2 DIAGRAM OF THE LOCKIN AMPLIFICATION PATHS Diagram of the preamplifier switches 53 58...
Page 54: ...7 3 FRONTPANEL DIMENSIONS 54 58...
Page 55: ...7 4 INSTRUMENT SPECIFIC TEST SHEETS insert with 10 pages of data 55 58...
Page 56: ...7 5 PREAMPLIFIER CONNECTOR PINOUT 56 58...
Page 58: ...7 7 TRACEABILITY CHART 58 58...