Panametrics DigitalFlow XMT868i, Programming Manual

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DigitalFlow™ XMT868i Programming Manual 77
Appendix E. Foundation Fieldbus Communications
Appendix E. Foundation Fieldbus Communications
E.1 Introduction
Foundation Fieldbus provides a means of communicating with the flowmeter. The patent numbers which apply are
5,909,363 and 6,424,872.
This Foundation Fieldbus device supports 2 Analog Input (AI) blocks, which can be configured to supply the following
measurements on the network (see Table 48).
Table 48: Available Fieldbus Measurements
Description
Units Description Units Description
Units
Ch1 Velocity ft/s or m/s* Ch2 Velocity ft/s or m/s* Avg Velocity ft/s or m/s*
Ch1 Volumetric VOL_U Ch2 Volumetric VOL_U Avg Volumetric VOL_U
Ch1 + Totals TOT_U Ch2 + Totals TOT_U Avg + Totals TOT_U
Ch1 - Totals TOT_U Ch2 - Totals TOT_U Avg - Totals TOT_U
Ch1 Tot Digits** none Ch2 Tot Digits** none Avg Tot Digits** none
Ch1 Totalizer
Time
seconds Ch2 Totalizer Time seconds Avg Totalizer
Time
seconds
Ch1 Error Value none Ch2 Error Value none Avg Error Value none
Ch1 SSUP none Ch2 SSUP none Avg SSUP none
Ch1 SSDN none Ch2 SSDN none Avg SSDN none
Ch1 SNDSP ft/s or m/s* Ch2 SNDSP ft/s or m/s* Avg SNDSP ft/s or m/s*
Ch1 Power POWER_U Ch2 Power POWER_U
Ch1 + Energy ENERGY_U Ch2 + Energy ENERGY_U
Ch1 - Energy ENERGY_U Ch2 - Energy ENERGY_U
Ch1 TempS Deg F or C* Ch2 TempS Deg F or C*
Ch1 TempR Deg F or C* Ch2 TempR Deg F or C*
Ch1 TS-TR Deg F or C* Ch2 TS-TR Deg F or C*
Ch1 DELTH But/lb J/gm Ch2 DELTH But/lb J/gm
*Metric or English units are determined by the XMT868i flowmeter setup, programmed in the GLOBL
menu (SYSTM option).
** Totalizer digits are available for informational purposes only, Respective totals are automatically
scaled by the Tot Digits value selected in the XMT868i flowmeter setup, programmed in the Chx or
GLOBL menu (SYSTM option).
VOL_U, TOT_U, PoWER_U and ENERGY_U are determined by the units chosen for these
measurements in the XMT868i flowmeter setup. See Chapter 1 for parameter setup.