Operation; Main Functions - Omron K3NC Manual

Operation

■ 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.
20 mA
4 mA
Lower Upper
limit limit
■ 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
Pulse with a width of no less than 20 ms.
(no more than 50 ms.)
REQ.
DATA All data "high"
DATA
VALID
Approx. 30 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)
K3NC (2)
K3NC (3)
Continuous Data Output
REQ.
DATA
All data "high" Data 1
DATA
VALID
40ms
Approx.
64ms
30 ms
For the 4- to 20-mA
output type
Display
Data All data "high"
40 ms
16 ms
Programmable
controller
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.
Data 2
40ms
24ms
24ms
64ms
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.
REQ.
(1)
REQ.
(2)
REQ.
(3)
(1)
DATA
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
(3)
(2)
* *
K3NC
C-137