Siemens SIMATIC ET 200SP HA - Application case 3: SIL3;Cat.4;PLe, 2- or 4-wire transducer, 1 oo2

Description
The quality code of 󹪝eld devices with HART revision 5 and 6 is structured as follows:
Quality code Meaning (process status)
80
H
Value is okay Also applies when the following bits
are set in the 2nd status byte of the
HART response frame:
• Con󹪝guration changed
• Startup (cold start)
• Fixed analog output current setting
78
H
Value is uncertain Also applies when the following bits
are set in the 2nd status byte of the
HART response frame:
• Additional status information avail‐
able
• Analog output current saturated
• Secondary variable outside the lim‐
its
• Primary variable outside the range
84
H
Response code RC8: Update error
24
H
Response code RC16: Access restricted Request from 󹪝eld device refused
23
H
Communication error or HART variable not
present in the 󹪝eld device
37
H
Initialization value from analog module After module start-up, after incorrect
operation of the multiHART interface
or after redundancy failover to the
standby channel
1
00
H
Initialization value from system
1
A channel is in standby mode when a redundancy failover occurs due to a fault in an IO-redundant
module.
7.4.4.2 Field devices with HART revision 7 and higher
De󹪝nition
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).
HART function
7.4 Tags
AI 4xI 2-/4-wire HART ISOL HA
48 Equipment Manual, 07/2022, A5E50101523-AB