Siemens SIMATIC ET 200SP Manual page 28

HART function
4.4 HART variables
Field devices with HART Revision 7 or higher
The quality code is formed from the 1st status byte (HART device status) and the "Device
variable status" (DVS) of the response frames (HART command 9).
Quality code Meaning (process status)
80 Value is okay
H
89 "Good" with "Low limit"
H
8A "Good" with "High limit"
H
28 2B "Bad"
H... H
68 6B "Poor accuracy"
H... H
78 7B "Manual" or "Fixed"
H... H
88 8B "More device variable state available"
H... H
84 Response code RC8: Update error
H
24 Response code RC16: Access restricted
H
23 Communication error or HART variable not present in the
H
field device
37 Initialization value from analog module
H
40 Read alternatively via command 3
H
00 Initialization value from S7 system
H
26
Note
Process status, formed from the "Device varia‐
ble status" (DVS) of the response frames with
corresponding limits (see above).
Request from field device refused
After module startup
Analog Output Module AQ 4xI HART HF
Manual, 05/2019, A5E35098013-AA