Figure 4.2-Pressure Reading Control - Honeywell HPB User Manual

Precision barometer rs-232 and rs-485 output
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Integration Time
I = Rn or I = Mn
( I
=M002 factory default)
Integration
range for n value: 1-120
Rn: n readings/sec
Mn: n x 100 msec/reading
Pressure
A/D
Input
Converter
Operating Mode
OP = d m n p
(OP=ANEX factory default)
Output Control
if d = A then output every input
if d = U then output only changes
if p = X then no watchdog timer
if p = W then use watchdog timer
For binary format mode:
if m = N then no checksum
if m = C then use checksum
if n = S then use standard format
if n = E then use extended format
HPB Pressure Rate Conditioning
Deadband and Sensitivity
User Compensation
DS = dd Sn
(DS=00S0 factory default)
Dead Band
DB = n x dd x 0.005% FS range
(dd= 0 - 60, n=1, 2, 4, or 8)
User Compensation
Press. = mX + b
X= m, Z= b)
(
X=nn, Z=nn
(X=1.000 factory default)
Reading Rate
(RR=00 factory default)
Output Control
if r = 0 then output every input
if r = 1 - 10 then skip r x 100
Idle Count
IC = c
(IC=0 factory default)
if c = 0 then no wait cycles
if c = 1 - 255 then add 'c' wait
cycles between inputs
I = Mn
if
Delay
I = Rn
if
Display Units
Display Units
Scalar
RR = r
identical readings
Pressure
P1, P2, P3, P4
Output Mode
and Format
• Single or Continuous
RS-232 or
• ASCII or Binary
RS-485
Pressure Values
Driver
TD
Digital
Outputs

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