User`s manual
78 Agilent E1330B Digital I/O Module Command Reference
Chapter 5
DIGital:DATAn[:type]:HANDshake:DELay
[SOURce:]DIGital:DATAn[:BYTE]:HANDshake:DELay <time> sets the delay
between data output and control line for data output at 8-bit port n.
[SOURce:]DIGital:DATAn:WORD:HANDshake:DELay <time> sets the delay
between data output and control line for data output at 16-bit port n.
[SOURce:]DIGital:DATAn:LWORd:HANDshake:DELay <time> sets the delay
between data output and the control line for data output at 32-bit port n.
Parameters
Comments • This command is related to the handshake mode in use. Chapter 3 describes the
handshake modes and timing.
• This command sets strobe pulse width for input and output STRobe
handshakes.
• The delay time must be set to the same value on all ports used in a multiple
port operation.
• MAX sets a 15ms delay. DEF sets 2µs delay. MIN sets 0.0 delay and is illegal
for PULse or STRobe handshake modes.
• DIGital:DATAn:HANDshake[:MODE] NONE command ignores any
programmed delay time. For all other modes of handshaking, 2
µs is the
minimum recommended.
• Specific bands of delay settings are NOT allowed. These are:
0µs> <time> <2µs 150µs> <time> <200µs
15
µs> <time> <20µs1.5ms> <time> <2.0ms
The controller uses a rounded-up value for
<time> if these values are specified.
• The keyword :LW32 may be used instead of :LWORd when using the
download version of the SCPI driver.
• DIGital:DATAn[:type]:HANDshake is the sequence used for commands
relating to data handshaking at ports defined by n. The port number n must be
the last character of the keyword without spaces.
• Related Commands: [SOURce:]DIGital:CONTroln:POLarity,
[SOURce:]DIGital:CONTroln[:VALue], [SOURce:]DIGital:FLAGn:POLarity,
[SOURce:]DIGital:HANDshaken[:MODE]
• *RST Condition: Delay is set to 2µs.
Example DIG:HAND3:DEL .005 sets the delay between the data output and the assertion of
the control line to true on 8-bit port 3 to 5ms.
Parameter Name Parameter Type Range of Values Default
DATA
n
Numeric BYTE
WORD
LWORd
none, 0, 1, 2, or 3
none, 0 or 2
none or 0
0
<
time>
Numeric
2
µs to 15 µs
20
µs to 150 µs
200
µs to 1.5 ms
2ms to 15ms
None
Discrete MIN|MAX|DEF