K3HB-R

12

■ 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.MIN.

DATA

DATA

VALID

20-ms pulse min. (50 ms max.)

Approx.

30 ms

Data 1

Data 2

REQ.

MAX.MIN.

DATA

DATA

VALID

64 ms

64 ms

40 ms

40 ms

24 ms

24 ms

All data "High"

K3HB

(1)

Programmable

Controller

K3HB

(2)

K3HB

(3)

DATA (including POL and

OVER) and DATA VALID can

be used in a wired OR.

RUN, HH, H, PASS, L, and

LL are always output, with or

without a REQUEST signal.

Do not used a wired OR

connect for these signals.

DATA

REQ. (1)

(1)

(2)

(3)

REQ. (2)

REQ. (3)

DATA

VALID

Note: Leave 20 ms min. between DATA VALID turning 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 Programmable Controller

DC Input Unit

1.COMMON

Connector pin No. (See note.)

COM

IN

IN

IN

IN

IN

IN

OUT

OUT

COM

24 VDC

(0 V)

2.1

3.2

4.4

5.8

23.DATA VALID

24.RUN

25.COMMON

26.REQUEST

30.RESET

31.POLARITY

(

+/− polarity)

10

°

240

Ω

240

Ω

240

Ω

240

Ω

+5 V

+24 V

0 V

DC power

supply

Transistor Output Unit

Display Unit Connection Example

To 102

<M7E Digital Display Unit>

SEC

Digital Indicator

1.COMMON

Connector pin No. (See note.)

2.1

3.2

4.4

5.8

23.DATA VALID

24.RUN

25.COMMON

26.REQUEST

30.RESET

M7E-01D

@N2, 01H@N2

31.POLARITY

(

+/− polarity)

10

°

To 101

240

Ω

240

Ω

240

Ω

240

Ω

+5 V

8

8

8

Short-

circuit

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