ST80/ST80L Flow Meter OPERATION
Fluid Components International LLC 61
Command 187: Read KFactor3
See Table 16, page 62, for response code list.
Command 188: Read KFactor4
See Table 16, page 62, for response code list.
Command 191: Totalizer Reset
See Table 16, page 62, for response code list.
Command 193: Read Process Variable and Time Stamp
Read PV value, status, PV units, PV classification code, date
code, and timestamp.
Read PV value, status, PV units, PV classification code, date
code, and timestamp.
See Table 16, page 62, for response code list.
HART Command Bit Assignments
Command Status Bytes
The HART command response data field includes a status message in the first two bytes. The first byte (0) is the Comm Error/Response code.
The second byte (1) is the Device status. Byte 0 indicates either a communication error or a command-specific response code if no
communication error exists. Note that within the first byte, bit b7 is either set or cleared to indicate that the byte indicates a comm error or a
command-specific response code, respectively. Table 15 summarizes the command status bytes. Table 16 summarizes the command-specific
response codes.