Software Description - Honeywell FlexLine SmartServo 954 Service Manual

COMMISSIONING
Figure 7-10
7.3.7.2

Software Description

1. Hybrid Inventory Measurement System
Part No.: 4417340 Revision 1
With the HART protocol, an analog 4-20 mA signal can be combined
with a digital Frequency Shift Keying (FSK) signal. See
The analog and digital signals within the HART ® communication
The FCI-HT board, being a functional module of the 954 SmartServo
FlexLine, contains embedded software which enables it to collect data
input from sensors via both the HART bus and the FlexConn CAN bus.
Moreover the FCI-HT module can calculate the HIMS
The main function of the FCI-HT software is to measure HIMS product
density, by connecting the FCI-HT board via the HART bus to 1 or 2
pressure sensors, and via the FlexConn bus to a product level and a
water level sensor.
To measure product density, the needed standard system configuration
is:
 HART pressure sensor P1 (product pressure)
 HART pressure sensor P3 (Vapour pressure)
 Product level scanned from a FlexConn board (e.g. TII-XR)
 Water level scanned from a FlexConn board (e.g. FII-VT)
For tanks that are free venting to the atmosphere or floating-roof tanks,
P3 pressure is not required. The water level sensor is also optional.
Service Manual
954 SmartServo FlexLine
Figure 7-10
1
product density.
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