K3NC Datasheet, PDF (9/23 Pages) Omron Electronics LLC – Up/Down Counting Meter

Operation
I Main Functions
Linear Output Range lset
A linear output range can be set as required. A value corresponding
to the maximum output value and that corresponding to the minimum
output value can be set.
Remote/Local Selection r-l
Select remote programming when performing all settings through the
host devices and select local programming when performing settings
through key operation.
20 mA
For the 4- to 20-mA
output type
4 mA
Lower
limit
Upper
limit
Display
I BCD Output Timing Chart
A request signal from an external device (such as a Programmable Controller) is required to read BCD data.
Single Sampling Data Output
REQ.
Pulse with a width of no less than 20 ms.
(no more than 50 ms.)
DATA All data "high"
Data
All data "high"
DATA
VALID
Approx. 30 ms
40 ms
16 ms
Approximately 30 ms after the REQ signal rises, a sample is taken and the DATA VALID signal is output. Read the data when the DATA VALID
signal is ON.
The DATA VALID signal will turn OFF in 40 ms, and then in 16 ms, the data will go OFF.
Models with a BCD output have an open collector output configuration so that wired-OR connection is possible.
K3NC (1)
Programmable
controller
K3NC (2)
K3NC (3)
DATA (incl. POL and OVER)
and DATA VALID are wired-OR
processed.
The RUN, OUT5, OUT4,
OUT3, OUT2, and OUT1 sig-
nals are always output regard-
less of the status of the REQ
signal. Do not OR-wire these
signals.
Continuous Data Output
REQ.
DATA All data "high"
DATA
VALID
Approx.
30 ms
Data 1
Data 2
40ms
24ms
64ms
40ms
64ms
24ms
REQ.
(1)
REQ.
(2)
REQ.
(3)
DATA
(1)
(2)
(3)
DATA
VALID
*
*
*
*The period between the DATA VALID signal and the
REQ signal should be no less than 20 ms max.
The K3NC outputs each measurement at an interval of 64 ms when
a REQ signal is ON continuously.
Up/Down Counting Meter K3NC C-139