ST100A Series Flow Meter OPERATION
Fluid Components International LLC 75
Command 48, Additional Device Status Bytes
Table 18 below summarizes the Command 48 Additional Device Status bytes. This is a 6-byte field. The remaining status bytes are
reserved for future use. A status bit is cleared (0) for no error. A status bit is set (1) when an error (or condition) is detected.
Table 18 – Command 48, Additional Device Status Bytes Bit Assignments
Electronics Hardware Failure
Device Initialization Failed
Electronic Temperature Too High
Flow Sensor Not Connected
Sensor Communication Failure
Ethernet Communication Failure
USB Communications Failure
Industrial Communication Protocol Fail
Process Temperature Over Max Limit
Process Temperature Under Min Limit
Flow Sensor Heater Shorted
Flow Sensor A/D Counts Under Min Limit
Flow Sensor Delta-R Below Min Limit
FE Process Temperature Over Min Limit
FE Process Temperature Under Max Limit
Component Error – LTC2654
Component Error – CORE 4-20 mA Input
ADS1100 (non-fatal)
Component Error – Heater Monitor A/D
Component Error – 16-Bit I/O Expander
Component Error – Delta-R A/D Failure
Component Error – Reference-R A/D Failure
Component Error – FE FRAM
Component Error – Active Excitation IC
Component Error – Reference Excitation IC
STACK in Self Check Mode, No Process Data
Available
FE in Internal Delta-R Check – process data not
reliable (non-fatal)
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