11
K3HB-C
■
BCD Output Timing Chart
A REQUEST signal from a Programmable Controller or other external device is required to read BCD data.
Single Sampling Data Output
The data is set in approximately 30 ms from the rising edge of the
REQUEST signal and the DATA VALID signal is output.
When reading the data from a Programmable Controller, start
reading the data when the DATA VALID signal turns ON.
The DATA VALID signal will turn OFF 40 ms later, and the data will
turn OFF 16 ms after that.
Continuous Data Output
Measurement data is output every 64 ms while the REQUEST signal
remains ON.
Note:
If HOLD is executed when switching between data 1 and data
2, either data 1 or data 2 is output depending on the timing of
the hold signal. The data will not go LOW.
Approx.
30 ms
All data "High"
All data "High"
40 ms
16 ms
Data
REQ.
MAX.MI
N
.
DATA
DATA
V
ALID
20-ms p
u
lse min. (50 ms max.)
Approx.
30 ms
Data 1
Data 2
REQ.
MAX.MI
N
.
DATA
DATA
V
ALID
64 ms
64 ms
40 ms
40 ms
24 ms
24 ms
All data "High"
K3HB
(1)
Programma
b
le
Controller
K3HB
(2)
K3HB
(3)
DATA (incl
u
ding POL and
O
V
ER) and DATA
V
ALID can
b
e
u
sed in a
w
ired OR.
RU
N
, HH, H, PASS, L, and
LL are al
w
ays o
u
tp
u
t,
w
ith or
w
itho
u
t a REQUEST signal.
Do not
u
sed a
w
ired OR
connect for these signals.
DATA
REQ. (1)
(1)
(2)
(3)
REQ. (2)
REQ. (3)
DATA
V
ALID
Note:
Lea
v
e 20 ms min.
b
et
w
een DATA
V
ALID t
u
rning OFF and the REQUEST signal.
(See note.)
(See note.)
(See note.)
•
The K3HB BCD output model has an open collector output, so wired OR connection is possible
Programmable Controller Connection Example
Digital Indicator
SYSMAC Programma
b
le Controller
DC Inp
u
t Unit
1.COMMO
N
Connector pin
N
o. (See note.)
COM
I
N
I
N
I
N
I
N
I
N
I
N
OUT
OUT
COM
24
V
DC
(0
V
)
2.1
3.2
4.4
5.
8
23.DATA
V
ALID
24.RU
N
25.COMMO
N
26.REQUEST
30.RESET
31.POLARITY
(
+
/
−
polarity)
10
°
240
Ω
240
Ω
240
Ω
240
Ω
+5
V
+24
V
0
V
DC po
w
er
s
u
pply
Transistor O
u
tp
u
t Unit
Inter
nal circ
u
it
Inter
nal circ
u
it
Inter
nal circ
u
it
Display Unit Connection Example
To 10
2
<M7E Digital Display Unit>
V
O
SEC
Digital Indicator
1.COMMO
N
Connector pin
N
o. (See note.)
2.1
3.2
4.4
5.
8
23.DATA
V
ALID
24.RU
N
25.COMMO
N
26.REQUEST
30.RESET
M7E-01D
@
N
2, 01H
@
N
2
31.POLARITY
(
+
/
−
polarity)
10
°
To 10
1
240
Ω
240
Ω
240
Ω
240
Ω
+5
V
V
O
D
C
B
A
DP
LE
8
V
O
D
C
B
A
DP
LE
8
V
O
D
C
B
A
DP
LE
8
Short-
circ
u
it
Note:
The BCD output connector pin number is the D-sub connector pin number when
the BCD Output Cable (sold separately) is connected. This number differs from
the pin number for the Digital Indicator narrow pitch connector (manufactured by
Honda Tsushin Kogyo Co., Ltd.).
Refer to the following User's Manual for application precautions and other information required when using the Digital Indicator:
K3HB-R/P/C Digital Indicator User's Manual (Cat. No. N136)
The manual can be downloaded from the following site in PDF format: OMRON Industrial Web http://www.fa.omron.co.jp
