Siemens SIMATIC ET 200SP HA - Quality Code; HART Revision; Field Devices with HART Revision 5 and 6

7.4.3 Quality code
De󹪝nition
The quality code describes the process status of the corresponding HART variable.
Description
The quality code is structured as follows:
Bit 7….6 5....2 1…0
Quality
0 0: Bad
0 1: Uncertain
1 0: Good
1 1: Good
Sub-status
Coded according to "PROFIBUS PA Pro‐
󹪝le for Process Control Devices"
Limits
0 0: OK
0 1: Low limit
1 0: High limit
1 1: Constant
The quality codes generated by the I/O module conform to the HART revision of the 󹪝eld device
used.
• Field devices with HART revision 5 and 6 (Page 47)
• Field devices with HART revision 7 and higher (Page 48)
7.4.4 HART revision
7.4.4.1 Field devices with HART revision 5 and 6
De󹪝nition
The quality code is formed exclusively from the 1st and 2nd status byte (HART device status) of
the response frames (HART command 3).
HART function
7.4 Tags
AI 4xI 2-/4-wire HART ISOL HA
Equipment Manual, 07/2022, A5E50101523-AB 47