Spectrum 1734, Руководство пользователя

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Chapter 4: OE2CIH and HART 4-21
User’s Manual Pub. 0300272-03 Rev. B
Request Succeeded Reply
HART Read Dynamic Variables - Reply packet structure
Reply Size = 36 bytes
Offset Field Value Definition
28 PV Status (1 byte) 1 byte status from Cmd 9 (Rev 6 or
later)
OR
if Rev 5.
x device:
0×C0 = Connected
0×00 = Not Connected
29 SV Status (1 byte) 1 byte status from Cmd 9
OR if Rev 5 device:
0×C0 = Connected and Device
provides this value in CMD 3 (that
is, does not truncate)
0×00 = Not Connected
30 TV Status (1 byte) 1 byte status from Cmd 9
OR if Rev 5 device:
0×C0 = Connected and Device
provides this value in CMD 3 (that
is, does not truncate)
0×00 = Not Connected
31 FV Status (1 byte) 1 byte status from Command 9
OR if Rev 5 device:
0×C0 = Connected and Device
provides this value in CMD 3 (that
is, does not truncate)
0×00 = Not Connected
32-35 Loop Current (Float–4 bytes)
Device reported digital loop current
value. (Value from Cmd 3 for Rev 5
devices or Cmd 2 if later than Rev
5 device)