Interfaces (IEEE option L45-O1) LMG450
226
This should help you to program your requests and to understand how to communicate with
the instrument.
Two comments on the syntax in the ‘Sent’ column: A ‘
∪
’ stands for a space character, a ‘
↵
‘
for the <cr> (carriage return) character (which is the enter key, if you use for example a RS232
terminal-program on your PC).
No.
Sent
Received
Comments
1
*rst
↵
Reset the instrument to it’s default values.
After this first command the instrument
changes to the remote state.
2
*idn?
↵
ZES ZIMMER Electronic
Systems GmbH, LMG450,
serial number, version
You ask the instrument for it’s identification.
3
syst:lang short
↵
Switch to the SHORT command set
4a
utrmsn?
↵
0
Reads out the voltage of channel n(=1,2,...).
You don’t get the actual value, because there
has been no values copied to the interface
buffer
4b
inim;utrmsn?
↵
220.34
Waits until the end of the measuring cycle,
copies the values of channel n to the
interface buffer and outputs the actual
voltage
4c
utrmsn?
↵
220.34
No values of channel n were copied to the
interface buffer, so you get the same result!
5a
inim;utrmsn?;inim;i
trmsn?
↵
220.21;0.6437
Waits until the end of the measuring cycle,
copies the values of channel n to the
interface buffer and outputs the actual
voltage. Then the instrument waits until the
end of the next measuring cycle, copies the
values to the interface buffer and outputs the
actual current. The voltage and current are
from different measuring cycles!!
5b
inim;utrmsn?;itrmsn
?
↵
221.13;0.6432
Waits until the end of the measuring cycle,
copies the values of channel n to the
interface buffer and outputs the actual
voltage and current. The voltage and current
are from the same measuring cycle!!
5c
inim;utrmsn?
↵
itrmsn?
↵
217.75;0.6135
Waits until the end of the measuring cycle,
copies the values of channel n to the
interface buffer and outputs the actual
voltage and current. The voltage and current
are also from the same measuring cycle!!
Содержание LMG450
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