MODEL: 47DV
47DV SPECIFICATIONS
ES-9501 Rev.16 Page 12/13
http://www.m-system.co.jp/
BCD OUTPUT TIMING CHART
Request signals (REQ, MAX_REQ, MIN_REQ) from an external
device (e.g. PLC) are required in order to read out BCD data.
All signals in the following charts are in the negative logic
(ON at LOW signal, as factory set).
• Timing Chart for Single Sampling Cycle Data Output
• Output is provided via open collector, enabling wired-OR gate configuration
When one of REQ signals (REQ, MAX_REQ or MIN_REQ) is given and
its width is between 20 and 50 ms, DATA is established and DAV output
is given in approx. 30 ms from the falling edge of the REQ signal.
Read in the data to a PLC at the timing of the DAV output signal.
DAV is turned off in 40 ms. DATA is turned off in 16 ms after that.
When DATA output logic is negative, wired-OR connection is available
for BCD data, POL, OVF, HH, H, P, L and LL signals.
Measured data is output every 64 ms while one of REQ signals (REQ,
MAX_REQ or MIN_REQ) remains ON. For Event trigger modes, the data
value is the same as the display.
• Timing Chart for Continuous Data Output
30 ms
approx.
47Dx
1
PLC
47Dx
2
47Dx
3
30 ms
approx.
40 ms
40 ms
64 ms
*
2
*
2. Wait for at least 20 ms between DAV turning off and the next REQ signal.
*
2
*
2
64 ms
24 ms
40 ms
24 ms
16 ms
all data H
all data H
data
all data H
data
data
20 ms or wider (max. 50 ms)
1
2
3
REQ
DAV
REQ 1
REQ 2
REQ 3
DATA
DAV
MAX_REQ
MIN_REQ
REQ
MAX_REQ
MIN_REQ
DATA
DAV
Hi
Lo
Hi
Lo
Hi
Lo
* 1
*
1
DATA
*
1
*
1. DATA includes BCD Output, POL, OVF, HH, H, P, L, LL and RUN.
Hi
Lo
Hi
Lo
Hi
Lo
Hi
Lo
Hi
Lo
Hi
Lo
Hi
Lo
Hi
Lo
REQ 1
REQ 2
REQ 3
VIEWING ANGLE
The display is designed to provide the optimal legibility
when viewed from the angles as shown below.
10
°
30
°
