Flowserve MX HART Field Unit User Manual
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MX/QX HART Field Unit FCD LMENIM2340-00 – 1/14
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Command 48 can also be used to clear the “More Status Available”. When the device receives command 48 it
compares the Request Data Bytes to the current value; if there is an exact match it clears the “More Status Available
bit corresponding to the requesting device (Primary Master, Secondary Master, Gateway, etc.). If there is not an exact
match or too few bytes are received then the More Status Available bit remains unchanged. Extra Bytes beyond those
supported by the device are ignored.
Table 3.8 HART Defined Status Bits
Extended Device Status (Common Table 17)
Supported
Bit
Description
0
Maintenance Required
Yes
1
Device Variable Alert
No
2
Critical Power Failure
No
3
Failure
No
4
Out of Specification
No
5
Function Check
No
6
-
7
-
Standardized Status 0 (Common Table 29)
Supported
Bit
Description
0
Device Variable Simulation Active
No
1
Non-Volatile Memory Defect
Yes
2
Volatile Memory Defect
No
3
Watchdog Reset Executed
Yes
4
Power Supply Conditions Out of Range
No
5
Environmental Conditions Out of Range
No
6
Electronic Defect
No
7
Device Configuration Locked
Yes
Analog Channel Saturated (Common Table 27)
Supported
Bit
Description
0
Analog Channel 1
Yes
1
Analog Channel 2
No
2
Analog Channel 3
No
3
Analog Channel 4
No
4
-
5
-
6
-
7
-
Analog Channel Fixed (Common Table 28)
Supported
Bit
Description
0
Analog Channel 1
Yes
1
Analog Channel 2
No
2
Analog Channel 3
No
3
Analog Channel 4
No
4
-
5
-
6
-
7
-