I/O Timing - Sony LT20-Series Bedienungsanleitung

Alarm output
This is set to "L" (ON) by pressing the reset key or by the
terminal reset input after eliminating the various causes of
the alarm.
Comparator value selection input
The four comparator value pairings set in the display unit
can be selected.
Pin #∞ Pin #§
(Upper limit CPH, lower limit CPL)
CPH1, CPL1
H H
CPH2, CPL2
L H
CPH3, CPL3
H L
CPH4, CPL4
L L
DRQ display/output hold feature
While the DRQ signal is "L" (ON) the display and output
(BCD, Go/No Go output of terminals) of termianls are
stored. (When the BCD output form is set to
BCD output data is held on DRQ becoming "H" (OFF).)
However, when the initial setting of pin !™!¢ of the terminals is
changed from , set at the time of shipping, to
the hold function for the display and output of terminals is
operated by only pin !™!¢ of the terminals and the DRQ hold
function operates only for the BCD output date.
Comparator value
, only the
,

7-2. I/O timing

1-@∞ Data, #º DRQ input, #¡ READ output
• When Initial setting
DRQ (IN)
READY (OUT)
DATA (OUT)
MAX. 3 ms
• When Initial setting
DRQ (IN)
READY (OUT)
DATA (OUT)
MAX. 3 ms MAX. 2 ms MIN. 2 ms
(See P53 for factory-set.)
MAX. 2 ms MIN. 2 ms
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