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OPERATION
MODEL 1793/6423
TABLE 3-3
Address To Address Time Delays
A/D MODE
CONDITION
BEFORE
OUTPUT
AFTER
OUTPUT
DELAY UNTIL BUS OUTPUT
POWER ON
Run
NON-TRIGGER ADDRESS
RECEIVED
Run
Run
<lmsec
TRIGGER ADDRESS
RECEIVED
Run
Hold
400-800msecs
TRIGGER ADDRESS
RECEIVED
Hold
Hold
400msec
NON-TRIGGER ADDRESS
RECEIVED
Hold
Run
400msec
NON-TRIGGER ADDRESS
RECEIVED
Run
Run
<lmsec if >400msec since last
address.
1 to 400msec if
<400msec since last address
3-8. Secondary Addressing. Due to settling time
of the A-D converter, it may be necessary to use the
Secondary
Addressing
mode
of
the
1793/6423
to
achieve triggered readings within the rated accuracy
of the instrument.
3-9.
Secondary Addressing may also be used to
change the terminator from a CR-LF to LF-CR to be
compatible with all controllers (e.g. DEC 11V03).
Table 3-4 defines the Secondary Addresses.
Mode Select
Not Used
3-10.
If no Secondary Address is sent, the default
condition is Secondary Address 0.
The Secondary
Address must be present within 1msec after receiving
the primary address.
TABLE 3-4
Secondary Addresses
Secondary
Address
Triqqered Period
Terminator
0
400msec
CR-LF
1
400msec
LF-CR
2
1.2 sec
CR-LF
3
1.2 sec
LF-CR
FI6UK 3-1. SS02
3-2
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