Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 59)

8B. Installation & Configuration II. SOFTWARE GUIDES - 8. Driver488/DRV
II-44 Personal488 User’s Manual, Rev. 3.0
To add additional devices, use . Note this external device screen is also used to configure
MP488CT Digital I/O ( DIGIO ) and Counter/Timers ( TIMER ).
The following parameters are available for modification.
Configuration Parameters
•
Name: External device
names are user defined
names which are used to
convey the configuration
information about each
device, from the
initialization file to the
application program. Each
external device must have
a name to identify its
configuration to
Driver488/DRV. The
name can then be used to
obtain a handle to that
device which will be used
by all of the
Driver488/DRV
commands. External
device names consist of 1
to 6 characters, and the first character must be a letter. The remaining characters may be letters,
numbers, or underscores ( _ ). External device names are case insensitive; upper and lower case
letters are equivalent.
ADC is the same device as adc .
•
IEEE Bus Address: This is the setting for the IEEE 488 bus address of the device. It will be
checked against all the devices on the bus for conflicts. The IEEE 488 bus address consists of a
primary address from
00 to 31 , and an optional secondary address from 00 to 31 or “NONE”.
•
Timeout (ms): The time out period is the amount of time that data transfers wait before assuming
that the device does not transfer data. If the time out period elapses while waiting to transfer data,
an error signal occurs. This field is the default timeout for any bus request or action, measured in
milliseconds. If no timeout is desired, the value may be set to zero.
•
Device Type: This field specifies the type of device represented by the external device name
selected.
•
Bus Terminators: The IEEE 488 bus terminators specify the character(s) and/or end-or-identify
(
EOI ) signal that is to be appended to data that is sent to the external device, or mark the end of
data that is received from the external device.
Note: Because secondary addresses and bus terminators are specified for each external device name,
it may be useful to have several different external devices defined for a single IEEE 488 bus
device. For example, separate names would be used to communicate with different secondary
addresses within a device. Also, different names might be used for communication of
command and status strings (terminated by carriage return/line feed) and for communication
of binary data (terminated by
EOI ).
Note: If installation or configuration problems exist, refer to “Section IV: Troubleshooting.”
To save your changes to disk, press . All changes will be saved in the directory where you
installed Driver488/DRV. If at any time you wish to alter your Driver488/DRV configuration, simply
rerun
CONFIG .