Pressure Reading Decimal Position; Figure 4.11-Synchronize Integration Cycles (Si) Command Example - Honeywell HPB User Manual

HPB/HPA User Manual
Figure 4.11 illustrates the Synchronize Integration cycle (SI) command as well as the Transceiver Operating parameters
(TO) options that affect it. This is for RS-485 units only.

4.6 PRESSURE READING DECIMAL POSITION

Digital pressure readings are displayed with a sign and a decimal position. Table 4.1 shows the number of
decimal place variations among the HPB pressure ranges; the number of digits to the right of the decimal
place. This is important when converting a binary format number so that decimal position can be determined.
For pressure values less than 1.0, (.XXXX), the first character of the pressure reading will be a zero
(=0.XXXX). For pressure values
or =XX.XX). For example, a 17.6
the full scale pressure as
22
Figure 4.11—Synchronize Integration Cycles (SI) Command Example
greater than 1.0, (XX.XX), the first character will be a space or a number (= XX.XX
psia device set to KGCM units (17.6psi x 0.070307= 1.23740 kg/cm
― ‖ kg/cm
#23CP=1.2374
Units Decimal Place
ATM
BAR
CMWC
FTWC
INHG
INWC
KGCM
Table 4.1—Decimal Place Locations for Pressure Readings
(Extended format selected, OP=E)
. (The numerical limit for FS reading is 90,000.)
2
Units Decimal Place
4 KPA
MBAR
4
MMHG
2
2 MPA
2
MWC
2
PFS
4
PSI
2
1
1
5
3
3
3
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2
) will read