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1. From the Interfaces and Devices tab of the IEEE 488 Interface Properties dialog box, click on the
"+" node symbol located just to the left of the desired interface. A list of external devices
associated with that interface will display.
2. At this point, you have the option of using one of the provided device names (such as
creating a new one.
•
•
3. Fill in the appropriate configuration parameters.
•
•
•
•
Because secondary addresses and bus terminators are specified by each handle, it may be useful to
have several different external devices defined for a single IEEE 488 bus device. For example,
separate device handles would be used to communicate with different secondary addresses within a
device. Also, different device handles might be used for communication of command and status
strings (terminated by carriage return
(terminated by
Personal488 User's Manual For Windows 95 and Windows NT
To use one of the provided device names, click to highlight the desired external device, and
select the Properties button. The Device dialog box will appear.
Otherwise, to create a new user-specified device name, click on the Add Device button. A
Device dialog box will appear much like the one shown above. The only difference is that all
of the configuration fields are blank and must be user-specified. Provide a Name for the
external device.
Name: This field specifies the type of device represented by the IEEE device name selected.
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. External
device names consist of 1 to 32 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.
Each external device must have a name to identify its configuration. The name can then be
used to obtain a handle to that device which will be used by all of the Driver488 commands.
Primary & Secondary Addresses: These fields specify the IEEE 488 bus primary and
secondary addresses of the external device. They will be checked against all the instruments on
the bus for conflicts. The IEEE488 bus primary address ranges from
secondary address ranges from
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.
Input & Output Terminators: The IEEE 488 bus terminators specify the characters and/or
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.
).
EOI
to
.
0
31
, line feed
), and for communication of binary data
CR
LF
) or
Dev1
is the same device as
ADC
to
, and the optional
0
30
Driver488/W95 & Driver488/WNT
.
adc
EOI
45
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