Flowserve MX HART Field Unit - Manual (Page 29)

29
MX/QX HART Field Unit FCD LMENIM2340-00 – 1/14
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Figure 3.3 – HART Diagnostics Data
3.5.2 Common Commands
Table 3.10 Common Commands
Command Request Data Bytes Response Data Bytes
No. Description Byte Format Description Byte Format Description
33 Read Device
Variables
0
1
2
3
Unsigned-8
Unsigned-8
Unsigned-8
Unsigned-8
Slot 0: Device Variable Code
Slot 1: Device Variable Code
Slot 2: Device Variable Code
Slot 4: Device Variable Code
0
1
2-5
6
7
8-11
12
13
14-17
18
19
20-23
Unsigned-8
Enum
Float
Unsigned-8
Enum
Float
Unsigned-8
Enum
Float
Unsigned-8
Enum
Float
Slot 0: Device Variable Code
Slot 0: Units Code
Slot 0: Device Variable Value
Slot 1: Device Variable Code
Slot 1: Units Code
Slot 1: Device Variable Value
Slot 2: Device Variable Code
Slot 2: Units Code
Slot 2: Device Variable Value
Slot 3: Device Variable Code
Slot 3: Units Code
Slot 3: Device Variable Value
35 Write Primary
Variable Range
Values 5
0
1-4
5-8
Unsigned-8
Float
Float
Upper and Lower Range Values Units Code
Upper Range Value
Lower Range Value
0-3
4-7
Float
Float
Primary Variable Loop Current (mA)
Primary Variable % Of Range
36 Set Primary
Variable Upper
Range Value 6
37 Set Primary
Variable Lower
Range Value 7
40 Enter/Exit Fixed
Current Mode
0-3 Float Fixed Current Level (units of milliamperes) 0-3 Float Fixed Current Level (units of milliamperes)
41 Perform Self
Test 8
42 Perform Device
Reset 9
45 Trim Loop
Current Zero 10
0-3 Float Externally Measured Loop Current Level
(units of milliamperes)
0-3 Float Actual Measured Loop Current Level (units of
milliamperes) 11