Fluid Components Intl ST51A - Page 59

ST51A/ST75A/ST75AV Mass Flow Meters OPERATION
Fluid Components International LLC 51
Command 155: Read KFactors
Byte
Format
Description
Request Data Bytes
None
Response Data Bytes
0–3
Float
KFactor1
4–7
Float
KFactor2
8–11
Float
KFactor3
12–15
Float
KFactor4
Response Codes:
See Table 16, page 53, for response code list.
Command 156: Write KFactors
Byte
Format
Description
Request Data Bytes
0–3
Float
KFactor1
4–7
Float
KFactor2
8–11
Float
KFactor3
12–15
Float
KFactor4
Response Data Bytes
0–3
Float
KFactor1
4–7
Float
KFactor2
8–11
Float
KFactor3
12–15
Float
KFactor4
Response Codes:
See Table 16, page 53, for response code list.
Command 159: Write Factory Restore
Byte
Format
Description
Request Data Bytes
1
0
Unsigned-8
0x00 for Factory Restore
Response Data Bytes
0
Unsigned-8
0x00 for Factory Restore
Response Codes:
See Table 16, page 53, for response code list.
Note: 1. Send Command 159 with a “0” byte to reload the instrument’s factory default programming.
Command 160: Read Secondary Output Current Mode
Byte
Format
Description
Request Data Bytes
None
Response Data Bytes
0–1
Word
Ch2 4-20 mA Source (1 = Flow, 2 = Temperature)
Response Codes:
See Table 16, page 53, for response code list.
Command 161: Write Secondary Output Current Mode
Byte
Format
Description
Request Data Bytes
0–1
Word
Ch2 4-20 mA Source (1 = Flow, 2 = Temperature)
Response Data Bytes
0–1
Word
Ch2 4-20 mA Source (1 = Flow, 2 = Temperature)
Response Codes:
See Table 16, page 53, for response code list.
Command 162: Enter/Exit Ch2 Fixed Current Mode (in mA)
Byte
Format
Description
Request Data Bytes
1
0–3
Float
Ch. 2 Fixed Current Level (mA units); “0” to Exit Fixed Current
Response Data Bytes
0–3
Float
Ch. 2 Actual Current Level
Response Codes:
See Table 16, page 53, for response code list.
Note: 1. Specify a value (in mA) to drive Ch. 2 to a particular output value. Specify “0” to exit the fixed current mode.