DataLoop™ LI23 Loop-Powered Process Meter
Instruction Manual
MN302100 Rev 3
25
Open Collector Outputs (
OPEN COLLECTR
)
The meter is equipped with two NPN open collector outputs that may be set up for pulse outputs, alarms,
timed pulses, or disabled.
Pulse outputs can be set to transmit the PV value (PV1 or PV2 if meter is in dual-scale mode). Output 2
may be used to generate a quadrature output based on the other open collector output. An output test
mode is also selectable to generate pulses at a constant programmable frequency.
Alarms are available based on the PV value or the digital input. The alarm status will show on the display
even if the output is not wired.
A timer output (
TIMER
) turns the open collector on and off at the specified time intervals. The timer can be
set as single-shot or continuous timer.
The stopwatch output (
STPWATCH
) allows the open collector to be manually activated by starting the
stopwatch. The stopwatch count can be displayed on the top or bottom line.
The output may be disabled by selecting
DISABLE
.
SETUP
OUTPUT
OPEN
COLLECTR
OC.OUT
OUTPUT1
OC.OUT
OUTPUT2
OUT 1
PULSE
PULSE
PV
PULSE
QUAD
*Available
for output
2 only.
*
OUT 1
ALARM
OUT 1
TIMER
OUT 1
STPWATCH
ALARM
PV
ALARM
D.INPUT
TIMER
OFF.DLAY
TIMER
ON TIME
TIMER
MODE
TIMER
START
MODE
CONT
MODE
ONE.SHOT
PULSE
TEST
OUT 1
DISABLE
