Fluid Components Intl ST51A - Page 50

OPERATION ST51A/ST75A/ST75AV Mass Flow Meters
42 Fluid Components International LLC
Command 9: Read Device Variables with Status
1
Byte
Format
Description
Request Data Bytes
0
Unsigned-8
Slot 0: Device Variable Code
1
Unsigned-8
Slot 1: Device Variable Code
2
Unsigned-8
Slot 2: Device Variable Code
3
Unsigned-8
Slot 3: Device Variable Code
4
Unsigned-8
Slot 4: Device Variable Code
5
Unsigned-8
Slot 5: Device Variable Code
6
Unsigned-8
Slot 6: Device Variable Code
7
Unsigned-8
Slot 7: Device Variable Code
Response Data Bytes
0
Bits
Extended Field Device Status
1
Unsigned-8
Slot 0: Device Variable Code
2
Enum
Slot 0: Device Variable Classification
3
Enum
Slot 0: Units Code
4–7
Float
Slot 0: Device Variable Value
8
Bits
Slot 0: Device Variable Status
9
Unsigned-8
Slot 1: Device Variable Code
10
Enum
Slot 1: Device Variable Classification
11
Enum
Slot 1: Units Code
12–15
Float
Slot 1: Device Variable Value
16
Bits
Slot 1: Device Variable Status
17
Unsigned-8
Slot 2: Device Variable Code
18
Enum
Slot 2: Device Variable Classification
19
Enum
Slot 2: Units Code
20–23
Float
Slot 2: Device Variable Value
24
Bits
Slot 2: Device Variable Status
25
Unsigned-8
Slot 3: Device Variable Code
26
Enum
Slot 3: Device Variable Classification
27
Enum
Slot 3: Units Code
28–31
Float
Slot 3: Device Variable Value
32
Bits
Slot 3: Device Variable Status
33
Unsigned-8
Slot 4: Device Variable Code
34
Enum
Slot 4: Device Variable Classification
35
Enum
Slot 4: Units Code
36–39
Float
Slot 4: Device Variable Value
40
Bits
Slot 4: Device Variable Status
41
Unsigned-8
Slot 5: Device Variable Code
42
Enum
Slot 5: Device Variable Classification
43
Enum
Slot 5: Units Code
44–47
Float
Slot 5: Device Variable Value
48
Bits
Slot 5: Device Variable Status
49
Unsigned-8
Slot 6: Device Variable Code
50
Enum
Slot 6: Device Variable Classification
51
Enum
Slot 6: Units Code
52–55
Float
Slot 6: Device Variable Value
56
Bits
Slot 6: Device Variable Status
57
Unsigned-8
Slot 7: Device Variable Code
58
Enum
Slot 7: Device Variable Classification
59
Enum
Slot 7: Units Code
60–63
Float
Slot 7: Device Variable Value
64
Bits
Slot 7: Device Variable Status
65–68
Time
Slot 0: Data Time Stamp
Response Codes:
See Table 16, page 53, for response code list.
Note: 1. Command 9 takes in a variable list of parameters and similarly returns a variable length response.