HP 3325B - Page 75

HP 3325B Remote Operation Command Set
MD; Data Transfer Mode Command
The MD command selects the HP-IB data transfer mode. (This command has no effect when
the 1^-232 interface is used.) In mode 1, each device-dependent character is processed when
received. No other communications are permitted on the bus until the entire HP 3325B
pro^am string has been accepted and all but the last character processed. In mode 2,
device-dependent characters are accepted and stored in an internal buffer; they are not
processed until the End-Of-Command-String (EOCS) character is received or the buffer is
filled (48 bytes). Valid EOCS characters are the <iine feed> character (ASCII decimal 10) or
the asterisk (*) character (ASCII decimal 42).
Instrument Power-on, HP-IB Clear value: 1 .
Instrument Preset value: not changed.
Command Availability
_ IVID MD?
HP 3325B Yes Yes
Figure 2-26. MD Syntax Diagram
Digit”
Meaning
Each character processed when received.
Characters buffered. EOCS starts processing.
Table 2-25. MD? and IMD Response Format
HEAD-on response
HEAD-off response
MD#
#
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