'
LockIn
' menu. Enter parameters/values as described above (no underscores needed
here!).
4.2 U
SE
CGI-F
UNCTIONS
VIA
W
EB
B
ROWSER
Web browsers are also able to address the CGI-interface of the
eLockIn
directly. The
commands are based on the structure described in the previous chapter. The only
difference is that the web browser needs the IP-address of the
eLockIn
for every
command.
Example: Set the reference frequency to 100 kHz using the
remote.cgi
with the
following parameter set:
http://192.168.1.7/cgi-bin/remote.cgi?8DD_100000_8
After '?', '8DD' indicates that the 'LockIn', the 'Ref' and the 'f [kHz]' menus are entered
one after the other. The underscore is the spacer for the frequency value '100000'. With
the '8' command, the
eLockIn
is turned back to the 'LockIn' main menu.
4.3 E
XPORTED
FUNCTIONS
OF
THE
E
L
OCKIN
.
DLL
The functions exported by the dll are described in the following table:
Name
Input
Output
Description
_Init
IP-address
type: pChar
No Return
value.
Initializes the
eLockIn
by calling
the current IP address.
IT IS ABSOLUTELY MANDATORY TO CALL THIS _Init-FUNCTION AS VERY FIRST
FUNCTION BEFORE ALL OTHER FUNCTIONS CAN BE USED!!
_GetLockInData
Channel
[1 to 4]
type:
Integer
Value
[real
number]
type: double
Returns the measured
Value
of the
Channel
as real number.
***
_SetLockInInpRange
Range
type:
double
No Return
value.
Switches the input range between
low noise (1), normal (10) and high
dynamic reserve (100) (see table 2
page 36).
_SetLockInCouple
Couple
type:
double
No Return
value.
Switches the input coupling between
dc (0) and ac (1). (table 3, page 36)
_SetLockInFilterTime
Time
constant
type:
double
No Return
value.
Switches the time constant of the
filter. The values are coded as in
table 7 on page 37
_SetLockInSyncFilter
(Vers. > 1.0.0.2)
Number of
cycles:
double
No Return
value.
Switches the number of cycles for
the sync filter. Values from 0 (Off) to
255
44 (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...