50
Virtual Instrument Operation
IEEE-488 Virtual Instrument
As a more convenient option for controlling the settings, the user may scroll to the
area above the VI and enter the values for the Sensor Length, Hi Setpoint, A Setpoint,
B Setpoint, Lo Setpoint, and Fill Interval directly in the control fields (please observe
the specified units). Any changes in the fields are recognized and sent to the actual
instrument in the form of the appropriate command string. Any settings changed by
the VI virtual panel toggle switches or control fields are saved in permanent memory
in the actual instrument.
The VI may be gracefully stopped by using the STOP toggle switch in the lower left
corner of the VI. After stopping the VI, this switch must be placed back in the up
position in order to restart the VI.
IEEE-488 Virtual Instrument
The IEEE-488 (or GPIB) VI functions nearly identically to the RS-232 VI with a few
exceptions. The VI library, provided in the file MODEL186.LLB, for the IEEE-488
virtual instrument contains the following files:
VI
Function
186 Alarms.vi
Manages alarm functions for 186.
Config 186 via GPIB.vi
Initializes actual instrument from VI configuration.
Convert from CM.vi
Displays inches or percentage given input in cm.
Counter.vi
Timer function for the virtual display.
Get 186 Level via GPIB.vi
Updates virtual display with current level.
Init from 186 via GPIB.vi
Initializes VI configuration from actual instrument.
Model 186 via GPIB.vi
The main VI containing the configuration and front
panel controls. This is the VI the user should open
and execute.
Non-exclusive loop control.vi
This VI,
which is only available in the
COMP186.LLB library
, should be modified and
executed for non-exclusive GPIB operation.
GPIB Send.vi
Manages sending and receiving of ASCII strings
from the actual instrument.
Set 186 A via GPIB.vi
Configures the A setpoint.
Set 186 B via GPIB.vi
Configures the B setpoint.
Set 186 Fill via GPIB.vi
Configures the fill interval setting.
Set 186 HI via GPIB.vi
Configures the HI setpoint.
Set 186 Length via GPIB.vi
Configures the active sensor length.
Set 186 LO via GPIB.vi
Configures the LO setpoint.
Содержание 186
Страница 3: ...2 Introduction ...
Страница 13: ...12 Installation Configuring power ...
Страница 23: ...22 Calibration Approximate Calibration ...
Страница 29: ...28 Operation Sensor contamination ...
Страница 37: ...36 RS 232 Communication Data Logger Option Error Codes ...
Страница 47: ...46 IEEE 488 Communication Option Serial Poll Status Byte ...
Страница 55: ...54 Virtual Instrument Operation Running multiple GPIB devices ...
Страница 65: ...64 Index ...