Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 68)

II. SOFTWARE GUIDES - 8. Driver488/DRV 8D. Getting Started
Personal488 User’s Manual, Rev. 3.0 II-53
Next, take a reading from IEEE 488 bus device 16 :
C:\> ECHO ENTER 16> IEEE
C:\> TYPE IEEE
NDCV=035.679E-3
Now, if an IEEE 488 bus device name has been defined using the INSTALL program, that name can be
used to refer to the bus device. For example, assume that a Keithley Instruments Model 195 digital
multimeter has been given the name
K195 . The meter could be reset to its power-on conditions with a
CLEAR command:
C:\> ECHO CLEAR K195> IEEE
To program the 195 for the 2 VDC range, send it the R3F0X command:
C:\> ECHO OUTPUT K195;R3F0X> IEEE
This could also be achieved by sending the command directly to the device:
C:\> ECHO R3F0X> K195
To check the status of the 195, use the SERIAL POLL, or SPOLL command:
C:\> ECHO SPOLL K195> IEEE
C:\> TYPE IEEE
To display a reading from the 195, use the ENTER command:
C:\> ECHO ENTER K195> IEEE
C:\> TYPE IEEE
To view continuous readings from the 195, read directly from the K195 device:
C:\> TYPE K195
This causes readings to be taken from the 195 and displayed until is typed. Note that
may halt Driver488/DRV in the middle of a transaction, causing the first attempt at
another command to give a SEQUENCE ERROR . If this should occur, simply retry the last command.
It is also possible to save the bus device data into a file:
C:\> ECHO ENTER K195> IEEE
C:\> TYPE IEEE> DATA
C:\> ECHO ENTER FREQ> IEEE
C:\> TYPE IEEE>> DATA
The first two commands create a file named DATA that holds a reading from the 195. The next two
commands append a reading from the device FREQ to the data file. Note the use of the >> to indicate
append.
Indicator Driver488/DRV Status
C It is in the Controller state.
S It is the System Controller.
21 The value of its IEEE 488 bus address.
1 An Address Change has occurred.
I It is idle (neither a talker nor a listener).
0 There is no ByteIn available.
0 It is not ready to send a ByteOut .
0 Service Request ( SRQ ) is not asserted.
000 There is no outstanding error.
T0 It has not received a bus device TRIGGER command (only applicable in the Peripheral
mode).
C0 It has not received a CLEAR command (only applicable in the Peripheral mode).
P0 No CONTINUE transfer is in progress.
OK The error message is “OK”.